Search

Tarifur Rashid Chowdhury

Supervisory Patent Examiner (ID: 4818, Phone: (571)272-2287 , Office: P/2886 )

Most Active Art Unit
2871
Art Unit(s)
2871, 2877, 2886
Total Applications
1103
Issued Applications
925
Pending Applications
120
Abandoned Applications
66

Applications

Application numberTitle of the applicationFiling DateStatus
Array ( [id] => 1492860 [patent_doc_number] => 06417900 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2002-07-09 [patent_title] => 'Liquid crystal display unit with conductive light-shielding member having substantially the same potential as common electrode' [patent_app_type] => B1 [patent_app_number] => 09/044568 [patent_app_country] => US [patent_app_date] => 1998-03-19 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 13 [patent_figures_cnt] => 19 [patent_no_of_words] => 5882 [patent_no_of_claims] => 4 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 223 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/06/417/06417900.pdf [firstpage_image] =>[orig_patent_app_number] => 09044568 [rel_patent_id] =>[rel_patent_doc_number] =>)
09/044568
Liquid crystal display unit with conductive light-shielding member having substantially the same potential as common electrode Mar 18, 1998 Issued
Array ( [id] => 4249489 [patent_doc_number] => 06166787 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 2000-12-26 [patent_title] => 'Optical display device having prismatic film for enhanced viewing' [patent_app_type] => 1 [patent_app_number] => 9/040047 [patent_app_country] => US [patent_app_date] => 1998-03-17 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 6 [patent_figures_cnt] => 13 [patent_no_of_words] => 7911 [patent_no_of_claims] => 37 [patent_no_of_ind_claims] => 5 [patent_words_short_claim] => 150 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/06/166/06166787.pdf [firstpage_image] =>[orig_patent_app_number] => 040047 [rel_patent_id] =>[rel_patent_doc_number] =>)
09/040047
Optical display device having prismatic film for enhanced viewing Mar 16, 1998 Issued
Array ( [id] => 4152645 [patent_doc_number] => 06031594 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 2000-02-29 [patent_title] => 'Electro-optic device' [patent_app_type] => 1 [patent_app_number] => 9/041170 [patent_app_country] => US [patent_app_date] => 1998-03-12 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 9 [patent_figures_cnt] => 13 [patent_no_of_words] => 14244 [patent_no_of_claims] => 11 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 117 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/06/031/06031594.pdf [firstpage_image] =>[orig_patent_app_number] => 041170 [rel_patent_id] =>[rel_patent_doc_number] =>)
09/041170
Electro-optic device Mar 11, 1998 Issued
Array ( [id] => 4124488 [patent_doc_number] => 06046787 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 2000-04-04 [patent_title] => 'Stereoscopic optical element including a birefringent photosensitive film having regions of mutually different prescribed slow axes or fast axes, and an image display device using the same' [patent_app_type] => 1 [patent_app_number] => 9/038063 [patent_app_country] => US [patent_app_date] => 1998-03-11 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 15 [patent_figures_cnt] => 31 [patent_no_of_words] => 13683 [patent_no_of_claims] => 12 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 129 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/06/046/06046787.pdf [firstpage_image] =>[orig_patent_app_number] => 038063 [rel_patent_id] =>[rel_patent_doc_number] =>)
09/038063
Stereoscopic optical element including a birefringent photosensitive film having regions of mutually different prescribed slow axes or fast axes, and an image display device using the same Mar 10, 1998 Issued
Array ( [id] => 4227317 [patent_doc_number] => 06111628 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 2000-08-29 [patent_title] => 'Liquid crystal display device including plural bump electrodes' [patent_app_type] => 1 [patent_app_number] => 9/035063 [patent_app_country] => US [patent_app_date] => 1998-03-05 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 9 [patent_figures_cnt] => 18 [patent_no_of_words] => 5385 [patent_no_of_claims] => 12 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 142 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/06/111/06111628.pdf [firstpage_image] =>[orig_patent_app_number] => 035063 [rel_patent_id] =>[rel_patent_doc_number] =>)
09/035063
Liquid crystal display device including plural bump electrodes Mar 4, 1998 Issued
Array ( [id] => 4365678 [patent_doc_number] => 06201588 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 2001-03-13 [patent_title] => 'Liquid crystal optical element and liquid crystal device incorporating same' [patent_app_type] => 1 [patent_app_number] => 9/035350 [patent_app_country] => US [patent_app_date] => 1998-03-05 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 6 [patent_figures_cnt] => 13 [patent_no_of_words] => 6583 [patent_no_of_claims] => 16 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 123 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/06/201/06201588.pdf [firstpage_image] =>[orig_patent_app_number] => 035350 [rel_patent_id] =>[rel_patent_doc_number] =>)
09/035350
Liquid crystal optical element and liquid crystal device incorporating same Mar 4, 1998 Issued
Array ( [id] => 1391402 [patent_doc_number] => 06559903 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2003-05-06 [patent_title] => 'Non-absorptive electro-optical glazing structure employing composite infrared reflective polarizing filter' [patent_app_type] => B2 [patent_app_number] => 09/032302 [patent_app_country] => US [patent_app_date] => 1998-02-27 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 32 [patent_figures_cnt] => 141 [patent_no_of_words] => 25017 [patent_no_of_claims] => 12 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 200 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/06/559/06559903.pdf [firstpage_image] =>[orig_patent_app_number] => 09032302 [rel_patent_id] =>[rel_patent_doc_number] =>)
09/032302
Non-absorptive electro-optical glazing structure employing composite infrared reflective polarizing filter Feb 26, 1998 Issued
Array ( [id] => 4248356 [patent_doc_number] => 06081308 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 2000-06-27 [patent_title] => 'Method for manufacturing liquid crystal display' [patent_app_type] => 1 [patent_app_number] => 9/031445 [patent_app_country] => US [patent_app_date] => 1998-02-26 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 19 [patent_figures_cnt] => 39 [patent_no_of_words] => 7821 [patent_no_of_claims] => 16 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 27 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/06/081/06081308.pdf [firstpage_image] =>[orig_patent_app_number] => 031445 [rel_patent_id] =>[rel_patent_doc_number] =>)
09/031445
Method for manufacturing liquid crystal display Feb 25, 1998 Issued
Array ( [id] => 4128628 [patent_doc_number] => 06072553 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 2000-06-06 [patent_title] => 'Reflection-type liquid crystal display with layer comprising liquid crystal compound and liquid crystal polymer being twist-aligned at same angle' [patent_app_type] => 1 [patent_app_number] => 9/030154 [patent_app_country] => US [patent_app_date] => 1998-02-25 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 16 [patent_figures_cnt] => 26 [patent_no_of_words] => 11288 [patent_no_of_claims] => 21 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 182 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/06/072/06072553.pdf [firstpage_image] =>[orig_patent_app_number] => 030154 [rel_patent_id] =>[rel_patent_doc_number] =>)
09/030154
Reflection-type liquid crystal display with layer comprising liquid crystal compound and liquid crystal polymer being twist-aligned at same angle Feb 24, 1998 Issued
Array ( [id] => 4227171 [patent_doc_number] => 06111618 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 2000-08-29 [patent_title] => 'LCD projector illumination system having blue and red dichroic mirrors positioned such that blue mirror receives light before red mirror' [patent_app_type] => 1 [patent_app_number] => 9/028158 [patent_app_country] => US [patent_app_date] => 1998-02-23 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 5 [patent_figures_cnt] => 8 [patent_no_of_words] => 3213 [patent_no_of_claims] => 21 [patent_no_of_ind_claims] => 4 [patent_words_short_claim] => 161 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/06/111/06111618.pdf [firstpage_image] =>[orig_patent_app_number] => 028158 [rel_patent_id] =>[rel_patent_doc_number] =>)
09/028158
LCD projector illumination system having blue and red dichroic mirrors positioned such that blue mirror receives light before red mirror Feb 22, 1998 Issued
Array ( [id] => 4356471 [patent_doc_number] => 06285434 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 2001-09-04 [patent_title] => 'Substrate for colored cholesteric liquid crystal display allowing cholesteric liquid crystal material to be filled by surface tension without vacuum' [patent_app_type] => 1 [patent_app_number] => 9/026631 [patent_app_country] => US [patent_app_date] => 1998-02-20 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 7 [patent_figures_cnt] => 7 [patent_no_of_words] => 6678 [patent_no_of_claims] => 28 [patent_no_of_ind_claims] => 4 [patent_words_short_claim] => 85 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/06/285/06285434.pdf [firstpage_image] =>[orig_patent_app_number] => 026631 [rel_patent_id] =>[rel_patent_doc_number] =>)
09/026631
Substrate for colored cholesteric liquid crystal display allowing cholesteric liquid crystal material to be filled by surface tension without vacuum Feb 19, 1998 Issued
Array ( [id] => 4094735 [patent_doc_number] => 06025890 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 2000-02-15 [patent_title] => 'Beam splitter element including a beam splitting layer and a polarizing layer for use in a light polarization modulating display system' [patent_app_type] => 1 [patent_app_number] => 9/026762 [patent_app_country] => US [patent_app_date] => 1998-02-20 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 1 [patent_figures_cnt] => 2 [patent_no_of_words] => 2678 [patent_no_of_claims] => 15 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 177 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/06/025/06025890.pdf [firstpage_image] =>[orig_patent_app_number] => 026762 [rel_patent_id] =>[rel_patent_doc_number] =>)
09/026762
Beam splitter element including a beam splitting layer and a polarizing layer for use in a light polarization modulating display system Feb 19, 1998 Issued
Array ( [id] => 4143198 [patent_doc_number] => 06016173 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 2000-01-18 [patent_title] => 'Optics arrangement including a compensator cell and static wave plate for use in a continuously viewable, reflection mode, ferroelectric liquid crystal spatial light modulating system' [patent_app_type] => 1 [patent_app_number] => 9/025160 [patent_app_country] => US [patent_app_date] => 1998-02-18 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 6 [patent_figures_cnt] => 22 [patent_no_of_words] => 7931 [patent_no_of_claims] => 15 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 239 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/06/016/06016173.pdf [firstpage_image] =>[orig_patent_app_number] => 025160 [rel_patent_id] =>[rel_patent_doc_number] =>)
09/025160
Optics arrangement including a compensator cell and static wave plate for use in a continuously viewable, reflection mode, ferroelectric liquid crystal spatial light modulating system Feb 17, 1998 Issued
Array ( [id] => 4185458 [patent_doc_number] => 06084651 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 2000-07-04 [patent_title] => 'Liquid crystal display device having liquid crystal layer divided at different ratios in each pixel' [patent_app_type] => 1 [patent_app_number] => 9/024856 [patent_app_country] => US [patent_app_date] => 1998-02-17 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 12 [patent_figures_cnt] => 18 [patent_no_of_words] => 13496 [patent_no_of_claims] => 18 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 291 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/06/084/06084651.pdf [firstpage_image] =>[orig_patent_app_number] => 024856 [rel_patent_id] =>[rel_patent_doc_number] =>)
09/024856
Liquid crystal display device having liquid crystal layer divided at different ratios in each pixel Feb 16, 1998 Issued
Array ( [id] => 4227385 [patent_doc_number] => 06111633 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 2000-08-29 [patent_title] => 'Polarization independent optical switching device' [patent_app_type] => 1 [patent_app_number] => 9/022753 [patent_app_country] => US [patent_app_date] => 1998-02-12 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 7 [patent_figures_cnt] => 16 [patent_no_of_words] => 8467 [patent_no_of_claims] => 8 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 153 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/06/111/06111633.pdf [firstpage_image] =>[orig_patent_app_number] => 022753 [rel_patent_id] =>[rel_patent_doc_number] =>)
09/022753
Polarization independent optical switching device Feb 11, 1998 Issued
Array ( [id] => 4366541 [patent_doc_number] => 06175399 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 2001-01-16 [patent_title] => 'Reflective type liquid crystal display device having a diffusion layer of phase separated liquid crystal and polymer' [patent_app_type] => 1 [patent_app_number] => 9/021155 [patent_app_country] => US [patent_app_date] => 1998-02-10 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 26 [patent_figures_cnt] => 34 [patent_no_of_words] => 15264 [patent_no_of_claims] => 25 [patent_no_of_ind_claims] => 4 [patent_words_short_claim] => 174 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/06/175/06175399.pdf [firstpage_image] =>[orig_patent_app_number] => 021155 [rel_patent_id] =>[rel_patent_doc_number] =>)
09/021155
Reflective type liquid crystal display device having a diffusion layer of phase separated liquid crystal and polymer Feb 9, 1998 Issued
Array ( [id] => 4150536 [patent_doc_number] => 06061113 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 2000-05-09 [patent_title] => 'Optical compensatory sheet having an orientation layer activated by irradiation of light, process and preparation of the same and liquid crystal display' [patent_app_type] => 1 [patent_app_number] => 9/020404 [patent_app_country] => US [patent_app_date] => 1998-02-09 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 2 [patent_figures_cnt] => 4 [patent_no_of_words] => 7459 [patent_no_of_claims] => 17 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 59 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/06/061/06061113.pdf [firstpage_image] =>[orig_patent_app_number] => 020404 [rel_patent_id] =>[rel_patent_doc_number] =>)
09/020404
Optical compensatory sheet having an orientation layer activated by irradiation of light, process and preparation of the same and liquid crystal display Feb 8, 1998 Issued
Array ( [id] => 3947339 [patent_doc_number] => 05929962 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1999-07-27 [patent_title] => 'Method and apparatus for integrating microlens array into a liquid crystal display device using a sacrificial substrate' [patent_app_type] => 1 [patent_app_number] => 9/017867 [patent_app_country] => US [patent_app_date] => 1998-02-03 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 6 [patent_no_of_words] => 3120 [patent_no_of_claims] => 16 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 222 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/929/05929962.pdf [firstpage_image] =>[orig_patent_app_number] => 017867 [rel_patent_id] =>[rel_patent_doc_number] =>)
09/017867
Method and apparatus for integrating microlens array into a liquid crystal display device using a sacrificial substrate Feb 2, 1998 Issued
Array ( [id] => 4415445 [patent_doc_number] => 06172728 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 2001-01-09 [patent_title] => 'Reflective LCD including address lines shaped to reduce parasitic capacitance' [patent_app_type] => 1 [patent_app_number] => 9/017807 [patent_app_country] => US [patent_app_date] => 1998-02-03 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 13 [patent_figures_cnt] => 13 [patent_no_of_words] => 8381 [patent_no_of_claims] => 10 [patent_no_of_ind_claims] => 8 [patent_words_short_claim] => 146 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/06/172/06172728.pdf [firstpage_image] =>[orig_patent_app_number] => 017807 [rel_patent_id] =>[rel_patent_doc_number] =>)
09/017807
Reflective LCD including address lines shaped to reduce parasitic capacitance Feb 2, 1998 Issued
Array ( [id] => 4168500 [patent_doc_number] => 06115094 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 2000-09-05 [patent_title] => 'Reflection type display device and electronic device' [patent_app_type] => 1 [patent_app_number] => 9/018078 [patent_app_country] => US [patent_app_date] => 1998-02-03 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 6 [patent_figures_cnt] => 22 [patent_no_of_words] => 4718 [patent_no_of_claims] => 111 [patent_no_of_ind_claims] => 8 [patent_words_short_claim] => 116 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/06/115/06115094.pdf [firstpage_image] =>[orig_patent_app_number] => 018078 [rel_patent_id] =>[rel_patent_doc_number] =>)
09/018078
Reflection type display device and electronic device Feb 2, 1998 Issued
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