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] => 4365759 [patent_doc_number] => 06201593 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 2001-03-13 [patent_title] => 'Optical communication system having a liquid crystal routing switch' [patent_app_type] => 1 [patent_app_number] => 9/418220 [patent_app_country] => US [patent_app_date] => 1999-10-14 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 9 [patent_figures_cnt] => 15 [patent_no_of_words] => 3440 [patent_no_of_claims] => 2 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 133 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/06/201/06201593.pdf [firstpage_image] =>[orig_patent_app_number] => 418220 [rel_patent_id] =>[rel_patent_doc_number] =>)
09/418220
Optical communication system having a liquid crystal routing switch Oct 13, 1999 Issued
Array ( [id] => 1525423 [patent_doc_number] => 06353467 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2002-03-05 [patent_title] => 'Acute twist nematic (ATN) liquid crystal device for optical communication applications' [patent_app_type] => B1 [patent_app_number] => 09/417600 [patent_app_country] => US [patent_app_date] => 1999-10-14 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 9 [patent_figures_cnt] => 15 [patent_no_of_words] => 3366 [patent_no_of_claims] => 83 [patent_no_of_ind_claims] => 8 [patent_words_short_claim] => 107 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/06/353/06353467.pdf [firstpage_image] =>[orig_patent_app_number] => 09417600 [rel_patent_id] =>[rel_patent_doc_number] =>)
09/417600
Acute twist nematic (ATN) liquid crystal device for optical communication applications Oct 13, 1999 Issued
Array ( [id] => 4263554 [patent_doc_number] => 06208399 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 2001-03-27 [patent_title] => 'Liquid crystal display device' [patent_app_type] => 1 [patent_app_number] => 9/402645 [patent_app_country] => US [patent_app_date] => 1999-10-08 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 25 [patent_figures_cnt] => 29 [patent_no_of_words] => 13500 [patent_no_of_claims] => 18 [patent_no_of_ind_claims] => 4 [patent_words_short_claim] => 134 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/06/208/06208399.pdf [firstpage_image] =>[orig_patent_app_number] => 402645 [rel_patent_id] =>[rel_patent_doc_number] =>)
09/402645
Liquid crystal display device Oct 7, 1999 Issued
Array ( [id] => 4381570 [patent_doc_number] => 06288765 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 2001-09-11 [patent_title] => 'Liquid crystal display device having improved thickness uniformity' [patent_app_type] => 1 [patent_app_number] => 9/407745 [patent_app_country] => US [patent_app_date] => 1999-09-28 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 14 [patent_figures_cnt] => 29 [patent_no_of_words] => 9448 [patent_no_of_claims] => 14 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 139 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/06/288/06288765.pdf [firstpage_image] =>[orig_patent_app_number] => 407745 [rel_patent_id] =>[rel_patent_doc_number] =>)
09/407745
Liquid crystal display device having improved thickness uniformity Sep 27, 1999 Issued
Array ( [id] => 4270296 [patent_doc_number] => 06204900 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 2001-03-20 [patent_title] => 'Microencapsulated liquid crystal and a method and system for using same' [patent_app_type] => 1 [patent_app_number] => 9/407523 [patent_app_country] => US [patent_app_date] => 1999-09-28 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 18 [patent_no_of_words] => 14264 [patent_no_of_claims] => 17 [patent_no_of_ind_claims] => 7 [patent_words_short_claim] => 57 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/06/204/06204900.pdf [firstpage_image] =>[orig_patent_app_number] => 407523 [rel_patent_id] =>[rel_patent_doc_number] =>)
09/407523
Microencapsulated liquid crystal and a method and system for using same Sep 27, 1999 Issued
Array ( [id] => 4168472 [patent_doc_number] => 06115092 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 2000-09-05 [patent_title] => 'Compensation for edge effects and cell gap variation in tiled flat-panel, liquid crystal displays' [patent_app_type] => 1 [patent_app_number] => 9/396142 [patent_app_country] => US [patent_app_date] => 1999-09-15 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 13 [patent_figures_cnt] => 16 [patent_no_of_words] => 9262 [patent_no_of_claims] => 14 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 117 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/06/115/06115092.pdf [firstpage_image] =>[orig_patent_app_number] => 396142 [rel_patent_id] =>[rel_patent_doc_number] =>)
09/396142
Compensation for edge effects and cell gap variation in tiled flat-panel, liquid crystal displays Sep 14, 1999 Issued
Array ( [id] => 4114306 [patent_doc_number] => 06100949 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 2000-08-08 [patent_title] => 'Liquid crystal display device having electrostatic discharge protection' [patent_app_type] => 1 [patent_app_number] => 9/396453 [patent_app_country] => US [patent_app_date] => 1999-09-15 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 12 [patent_figures_cnt] => 16 [patent_no_of_words] => 3564 [patent_no_of_claims] => 14 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 105 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/06/100/06100949.pdf [firstpage_image] =>[orig_patent_app_number] => 396453 [rel_patent_id] =>[rel_patent_doc_number] =>)
09/396453
Liquid crystal display device having electrostatic discharge protection Sep 14, 1999 Issued
Array ( [id] => 1498584 [patent_doc_number] => 06404465 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2002-06-11 [patent_title] => 'Liquid crystal display wherein storage electrodes overlap upper part of source lines and pixel electrodes overlap upper part of storage electrodes' [patent_app_type] => B1 [patent_app_number] => 09/395940 [patent_app_country] => US [patent_app_date] => 1999-09-14 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 20 [patent_figures_cnt] => 31 [patent_no_of_words] => 7175 [patent_no_of_claims] => 6 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 134 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/06/404/06404465.pdf [firstpage_image] =>[orig_patent_app_number] => 09395940 [rel_patent_id] =>[rel_patent_doc_number] =>)
09/395940
Liquid crystal display wherein storage electrodes overlap upper part of source lines and pixel electrodes overlap upper part of storage electrodes Sep 13, 1999 Issued
Array ( [id] => 4195265 [patent_doc_number] => 06151086 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 2000-11-21 [patent_title] => 'Method and apparatus for controllably scattering light using birefringent liquid crystal' [patent_app_type] => 1 [patent_app_number] => 9/395143 [patent_app_country] => US [patent_app_date] => 1999-09-14 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 9 [patent_figures_cnt] => 10 [patent_no_of_words] => 6934 [patent_no_of_claims] => 22 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 142 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/06/151/06151086.pdf [firstpage_image] =>[orig_patent_app_number] => 395143 [rel_patent_id] =>[rel_patent_doc_number] =>)
09/395143
Method and apparatus for controllably scattering light using birefringent liquid crystal Sep 13, 1999 Issued
Array ( [id] => 4128666 [patent_doc_number] => 06072554 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 2000-06-06 [patent_title] => 'In-plane switching type liquid crystal display wherein the upper surface of the first substate having a raised portion' [patent_app_type] => 1 [patent_app_number] => 9/394343 [patent_app_country] => US [patent_app_date] => 1999-09-13 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 17 [patent_figures_cnt] => 30 [patent_no_of_words] => 9672 [patent_no_of_claims] => 9 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 209 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/06/072/06072554.pdf [firstpage_image] =>[orig_patent_app_number] => 394343 [rel_patent_id] =>[rel_patent_doc_number] =>)
09/394343
In-plane switching type liquid crystal display wherein the upper surface of the first substate having a raised portion Sep 12, 1999 Issued
Array ( [id] => 1479630 [patent_doc_number] => 06344887 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2002-02-05 [patent_title] => 'Full spectrum reflective choleterics display employing circular polarizers with the same polarity but different disposition' [patent_app_type] => B1 [patent_app_number] => 09/393947 [patent_app_country] => US [patent_app_date] => 1999-09-10 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 8 [patent_no_of_words] => 6257 [patent_no_of_claims] => 13 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 166 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/06/344/06344887.pdf [firstpage_image] =>[orig_patent_app_number] => 09393947 [rel_patent_id] =>[rel_patent_doc_number] =>)
09/393947
Full spectrum reflective choleterics display employing circular polarizers with the same polarity but different disposition Sep 9, 1999 Issued
Array ( [id] => 4243746 [patent_doc_number] => 06075577 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 2000-06-13 [patent_title] => 'Continuously viewable, DC field-balanced, reflective, ferroelectric liquid crystal image generator' [patent_app_type] => 1 [patent_app_number] => 9/391087 [patent_app_country] => US [patent_app_date] => 1999-09-04 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 6 [patent_figures_cnt] => 22 [patent_no_of_words] => 7930 [patent_no_of_claims] => 22 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 170 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/06/075/06075577.pdf [firstpage_image] =>[orig_patent_app_number] => 391087 [rel_patent_id] =>[rel_patent_doc_number] =>)
09/391087
Continuously viewable, DC field-balanced, reflective, ferroelectric liquid crystal image generator Sep 3, 1999 Issued
Array ( [id] => 4214322 [patent_doc_number] => 06078370 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 2000-06-20 [patent_title] => 'Method of constructing an array of pixels for use in a multi-pixel liquid crystal display' [patent_app_type] => 1 [patent_app_number] => 9/389127 [patent_app_country] => US [patent_app_date] => 1999-09-02 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 5 [patent_figures_cnt] => 11 [patent_no_of_words] => 6178 [patent_no_of_claims] => 6 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 372 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/06/078/06078370.pdf [firstpage_image] =>[orig_patent_app_number] => 389127 [rel_patent_id] =>[rel_patent_doc_number] =>)
09/389127
Method of constructing an array of pixels for use in a multi-pixel liquid crystal display Sep 1, 1999 Issued
Array ( [id] => 1492857 [patent_doc_number] => 06417899 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2002-07-09 [patent_title] => 'Liquid crystal display with internal polarizer and method of making same' [patent_app_type] => B1 [patent_app_number] => 09/386308 [patent_app_country] => US [patent_app_date] => 1999-08-31 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 7 [patent_figures_cnt] => 12 [patent_no_of_words] => 7482 [patent_no_of_claims] => 6 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 77 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/06/417/06417899.pdf [firstpage_image] =>[orig_patent_app_number] => 09386308 [rel_patent_id] =>[rel_patent_doc_number] =>)
09/386308
Liquid crystal display with internal polarizer and method of making same Aug 30, 1999 Issued
Array ( [id] => 4414673 [patent_doc_number] => 06271905 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 2001-08-07 [patent_title] => 'Reflective liquid crystal display device' [patent_app_type] => 1 [patent_app_number] => 9/382147 [patent_app_country] => US [patent_app_date] => 1999-08-24 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 6 [patent_figures_cnt] => 12 [patent_no_of_words] => 7219 [patent_no_of_claims] => 3 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 246 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/06/271/06271905.pdf [firstpage_image] =>[orig_patent_app_number] => 382147 [rel_patent_id] =>[rel_patent_doc_number] =>)
09/382147
Reflective liquid crystal display device Aug 23, 1999 Issued
Array ( [id] => 4390607 [patent_doc_number] => 06304308 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 2001-10-16 [patent_title] => 'Liquid crystal display device with optical shield film' [patent_app_type] => 1 [patent_app_number] => 9/370245 [patent_app_country] => US [patent_app_date] => 1999-08-09 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 10 [patent_figures_cnt] => 15 [patent_no_of_words] => 11245 [patent_no_of_claims] => 7 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 139 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/06/304/06304308.pdf [firstpage_image] =>[orig_patent_app_number] => 370245 [rel_patent_id] =>[rel_patent_doc_number] =>)
09/370245
Liquid crystal display device with optical shield film Aug 8, 1999 Issued
Array ( [id] => 1536030 [patent_doc_number] => 06411352 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2002-06-25 [patent_title] => 'Slim liquid crystal display device' [patent_app_type] => B1 [patent_app_number] => 09/370740 [patent_app_country] => US [patent_app_date] => 1999-08-09 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 5 [patent_figures_cnt] => 6 [patent_no_of_words] => 2526 [patent_no_of_claims] => 17 [patent_no_of_ind_claims] => 4 [patent_words_short_claim] => 67 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/06/411/06411352.pdf [firstpage_image] =>[orig_patent_app_number] => 09370740 [rel_patent_id] =>[rel_patent_doc_number] =>)
09/370740
Slim liquid crystal display device Aug 8, 1999 Issued
Array ( [id] => 4157375 [patent_doc_number] => 06064454 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 2000-05-16 [patent_title] => 'Color filter panel of an LCD device' [patent_app_type] => 1 [patent_app_number] => 9/359645 [patent_app_country] => US [patent_app_date] => 1999-07-26 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 11 [patent_figures_cnt] => 24 [patent_no_of_words] => 4275 [patent_no_of_claims] => 5 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 126 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/06/064/06064454.pdf [firstpage_image] =>[orig_patent_app_number] => 359645 [rel_patent_id] =>[rel_patent_doc_number] =>)
09/359645
Color filter panel of an LCD device Jul 25, 1999 Issued
Array ( [id] => 5886873 [patent_doc_number] => 20020012091 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2002-01-31 [patent_title] => 'MULTI-DOMAIN LIQUID CRYSTAL DISPLAY DEVICE HAVING FIELD AFFECTING ELECTRODE' [patent_app_type] => new [patent_app_number] => 09/357247 [patent_app_country] => US [patent_app_date] => 1999-07-20 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 18 [patent_figures_cnt] => 18 [patent_no_of_words] => 3474 [patent_no_of_claims] => 42 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 55 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] => publications/A1/0012/20020012091.pdf [firstpage_image] =>[orig_patent_app_number] => 09357247 [rel_patent_id] =>[rel_patent_doc_number] =>)
09/357247
Multi-domain liquid crystal display device having field affecting electrode Jul 19, 1999 Issued
Array ( [id] => 6581899 [patent_doc_number] => 20020041346 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2002-04-11 [patent_title] => 'ELECTRO-OPTICAL GLAZING STRUCTURES HAVING TOTAL-REFLECTION AND TRANSPARENT MODES OF OPERATION FOR USE IN DYNAMICAL CONTROL OF ELECTROMAGNETIC RADIATION' [patent_app_type] => new [patent_app_number] => 09/354192 [patent_app_country] => US [patent_app_date] => 1999-07-15 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 25 [patent_figures_cnt] => 25 [patent_no_of_words] => 18966 [patent_no_of_claims] => 35 [patent_no_of_ind_claims] => 20 [patent_words_short_claim] => 23 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] => publications/A1/0041/20020041346.pdf [firstpage_image] =>[orig_patent_app_number] => 09354192 [rel_patent_id] =>[rel_patent_doc_number] =>)
09/354192
Electro-optical glazing structures having bi-directional control of electromagnetic radiation during total-reflection, semi-transparent and totally-transparent modes of operation Jul 14, 1999 Issued
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