Search

Kai J. Chang

Examiner (ID: 19429, Phone: (571)270-5448 , Office: P/2468 )

Most Active Art Unit
2468
Art Unit(s)
2468
Total Applications
464
Issued Applications
333
Pending Applications
28
Abandoned Applications
109

Applications

Application numberTitle of the applicationFiling DateStatus
Array ( [id] => 2891263 [patent_doc_number] => 05119450 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1992-06-02 [patent_title] => 'Broad wavelength range single mode integrated optics device' [patent_app_type] => 1 [patent_app_number] => 7/747763 [patent_app_country] => US [patent_app_date] => 1991-08-20 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 2 [patent_figures_cnt] => 6 [patent_no_of_words] => 3450 [patent_no_of_claims] => 16 [patent_no_of_ind_claims] => 4 [patent_words_short_claim] => 138 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/119/05119450.pdf [firstpage_image] =>[orig_patent_app_number] => 747763 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/747763
Broad wavelength range single mode integrated optics device Aug 19, 1991 Issued
Array ( [id] => 2841895 [patent_doc_number] => 05175778 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1992-12-29 [patent_title] => 'Integrated optic waveguide coupler with reduced wavelength sensitivity' [patent_app_type] => 1 [patent_app_number] => 7/745472 [patent_app_country] => US [patent_app_date] => 1991-08-15 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 4 [patent_no_of_words] => 1810 [patent_no_of_claims] => 6 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 83 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/175/05175778.pdf [firstpage_image] =>[orig_patent_app_number] => 745472 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/745472
Integrated optic waveguide coupler with reduced wavelength sensitivity Aug 14, 1991 Issued
Array ( [id] => 2872069 [patent_doc_number] => 05150435 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1992-09-22 [patent_title] => 'Signal processing system of optical fiber gyro' [patent_app_type] => 1 [patent_app_number] => 7/744249 [patent_app_country] => US [patent_app_date] => 1991-08-13 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 2 [patent_figures_cnt] => 2 [patent_no_of_words] => 4519 [patent_no_of_claims] => 2 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 284 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/150/05150435.pdf [firstpage_image] =>[orig_patent_app_number] => 744249 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/744249
Signal processing system of optical fiber gyro Aug 12, 1991 Issued
Array ( [id] => 2957343 [patent_doc_number] => 05181268 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1993-01-19 [patent_title] => 'Strippable tight buffered optical waveguide fiber' [patent_app_type] => 1 [patent_app_number] => 7/743763 [patent_app_country] => US [patent_app_date] => 1991-08-12 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 2 [patent_figures_cnt] => 5 [patent_no_of_words] => 4438 [patent_no_of_claims] => 23 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 82 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/181/05181268.pdf [firstpage_image] =>[orig_patent_app_number] => 743763 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/743763
Strippable tight buffered optical waveguide fiber Aug 11, 1991 Issued
Array ( [id] => 2812335 [patent_doc_number] => 05140661 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1992-08-18 [patent_title] => 'Optical fiber terminus' [patent_app_type] => 1 [patent_app_number] => 7/741082 [patent_app_country] => US [patent_app_date] => 1991-08-06 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 2 [patent_figures_cnt] => 7 [patent_no_of_words] => 2442 [patent_no_of_claims] => 6 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 143 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/140/05140661.pdf [firstpage_image] =>[orig_patent_app_number] => 741082 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/741082
Optical fiber terminus Aug 5, 1991 Issued
Array ( [id] => 2797048 [patent_doc_number] => 05165105 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1992-11-17 [patent_title] => 'Separate confinement electroabsorption modulator utilizing the Franz-Keldysh effect' [patent_app_type] => 1 [patent_app_number] => 7/739870 [patent_app_country] => US [patent_app_date] => 1991-08-02 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 2 [patent_figures_cnt] => 2 [patent_no_of_words] => 3150 [patent_no_of_claims] => 30 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 102 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/165/05165105.pdf [firstpage_image] =>[orig_patent_app_number] => 739870 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/739870
Separate confinement electroabsorption modulator utilizing the Franz-Keldysh effect Aug 1, 1991 Issued
Array ( [id] => 2787596 [patent_doc_number] => 05133030 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1992-07-21 [patent_title] => 'Fiber optic switch having a curved reflector' [patent_app_type] => 1 [patent_app_number] => 7/735661 [patent_app_country] => US [patent_app_date] => 1991-07-26 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 9 [patent_figures_cnt] => 11 [patent_no_of_words] => 6018 [patent_no_of_claims] => 51 [patent_no_of_ind_claims] => 4 [patent_words_short_claim] => 226 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/133/05133030.pdf [firstpage_image] =>[orig_patent_app_number] => 735661 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/735661
Fiber optic switch having a curved reflector Jul 25, 1991 Issued
Array ( [id] => 2865926 [patent_doc_number] => 05127080 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1992-06-30 [patent_title] => 'Pseudo-intagliated fiber optic phosphor screen and method' [patent_app_type] => 1 [patent_app_number] => 7/716753 [patent_app_country] => US [patent_app_date] => 1991-06-18 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 2 [patent_figures_cnt] => 6 [patent_no_of_words] => 1946 [patent_no_of_claims] => 6 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 221 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/127/05127080.pdf [firstpage_image] =>[orig_patent_app_number] => 716753 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/716753
Pseudo-intagliated fiber optic phosphor screen and method Jun 17, 1991 Issued
07/713821 FIBER OPTIC TRANSPORT END CONNECTOR Jun 11, 1991 Abandoned
Array ( [id] => 2957252 [patent_doc_number] => 05181263 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1993-01-19 [patent_title] => 'Wave-guide I/O for optical or electro-optical components' [patent_app_type] => 1 [patent_app_number] => 7/711606 [patent_app_country] => US [patent_app_date] => 1991-06-07 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 2 [patent_figures_cnt] => 4 [patent_no_of_words] => 1563 [patent_no_of_claims] => 8 [patent_no_of_ind_claims] => 4 [patent_words_short_claim] => 112 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/181/05181263.pdf [firstpage_image] =>[orig_patent_app_number] => 711606 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/711606
Wave-guide I/O for optical or electro-optical components Jun 6, 1991 Issued
Array ( [id] => 2803450 [patent_doc_number] => 05136677 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1992-08-04 [patent_title] => 'Photorefractive effect in bulk chalcogenide glass and devices made therefrom' [patent_app_type] => 1 [patent_app_number] => 7/711627 [patent_app_country] => US [patent_app_date] => 1991-06-06 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 6 [patent_figures_cnt] => 15 [patent_no_of_words] => 4442 [patent_no_of_claims] => 22 [patent_no_of_ind_claims] => 5 [patent_words_short_claim] => 89 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/136/05136677.pdf [firstpage_image] =>[orig_patent_app_number] => 711627 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/711627
Photorefractive effect in bulk chalcogenide glass and devices made therefrom Jun 5, 1991 Issued
Array ( [id] => 2795799 [patent_doc_number] => 05093876 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1992-03-03 [patent_title] => 'WDM systems incorporating adiabatic reflection filters' [patent_app_type] => 1 [patent_app_number] => 7/709009 [patent_app_country] => US [patent_app_date] => 1991-05-31 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 8 [patent_no_of_words] => 4041 [patent_no_of_claims] => 4 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 195 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/093/05093876.pdf [firstpage_image] =>[orig_patent_app_number] => 709009 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/709009
WDM systems incorporating adiabatic reflection filters May 30, 1991 Issued
07/702140 PROCESS FOR MAKING MULTIFUNCTION INTEGRATED OPTICS CHIPS HAVING HIGH ELECTRO-OPTIC COEFFICIENTS May 12, 1991 Abandoned
Array ( [id] => 2794061 [patent_doc_number] => 05164954 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1992-11-17 [patent_title] => 'Wavelength-tunable traveling-wave semiconductor ring-laser' [patent_app_type] => 1 [patent_app_number] => 7/697710 [patent_app_country] => US [patent_app_date] => 1991-05-09 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 8 [patent_no_of_words] => 4865 [patent_no_of_claims] => 30 [patent_no_of_ind_claims] => 5 [patent_words_short_claim] => 84 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/164/05164954.pdf [firstpage_image] =>[orig_patent_app_number] => 697710 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/697710
Wavelength-tunable traveling-wave semiconductor ring-laser May 8, 1991 Issued
Array ( [id] => 2939285 [patent_doc_number] => 05187763 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1993-02-16 [patent_title] => 'Optical fiber cable having dripless, non-bleeding and optical fiber coating-compatible waterblocking material in core thereof' [patent_app_type] => 1 [patent_app_number] => 7/691770 [patent_app_country] => US [patent_app_date] => 1991-04-26 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 5 [patent_figures_cnt] => 10 [patent_no_of_words] => 6280 [patent_no_of_claims] => 18 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 52 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/187/05187763.pdf [firstpage_image] =>[orig_patent_app_number] => 691770 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/691770
Optical fiber cable having dripless, non-bleeding and optical fiber coating-compatible waterblocking material in core thereof Apr 25, 1991 Issued
Array ( [id] => 2987817 [patent_doc_number] => 05226099 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1993-07-06 [patent_title] => 'Digital micromirror shutter device' [patent_app_type] => 1 [patent_app_number] => 7/691920 [patent_app_country] => US [patent_app_date] => 1991-04-26 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 13 [patent_no_of_words] => 2655 [patent_no_of_claims] => 38 [patent_no_of_ind_claims] => 4 [patent_words_short_claim] => 76 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/226/05226099.pdf [firstpage_image] =>[orig_patent_app_number] => 691920 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/691920
Digital micromirror shutter device Apr 25, 1991 Issued
Array ( [id] => 2882267 [patent_doc_number] => 05091911 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1992-02-25 [patent_title] => 'Long wavelength NdYAG laser' [patent_app_type] => 1 [patent_app_number] => 7/691695 [patent_app_country] => US [patent_app_date] => 1991-04-26 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 1 [patent_figures_cnt] => 1 [patent_no_of_words] => 2876 [patent_no_of_claims] => 2 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 141 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/091/05091911.pdf [firstpage_image] =>[orig_patent_app_number] => 691695 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/691695
Long wavelength NdYAG laser Apr 25, 1991 Issued
Array ( [id] => 2866639 [patent_doc_number] => 05113462 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1992-05-12 [patent_title] => 'High energy fiber optica coupler' [patent_app_type] => 1 [patent_app_number] => 7/682872 [patent_app_country] => US [patent_app_date] => 1991-04-08 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 5 [patent_figures_cnt] => 8 [patent_no_of_words] => 2612 [patent_no_of_claims] => 14 [patent_no_of_ind_claims] => 4 [patent_words_short_claim] => 92 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/113/05113462.pdf [firstpage_image] =>[orig_patent_app_number] => 682872 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/682872
High energy fiber optica coupler Apr 7, 1991 Issued
Array ( [id] => 2881451 [patent_doc_number] => 05153931 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1992-10-06 [patent_title] => 'Fiber optic hydrogen sensor' [patent_app_type] => 1 [patent_app_number] => 7/678520 [patent_app_country] => US [patent_app_date] => 1991-04-01 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 2 [patent_figures_cnt] => 4 [patent_no_of_words] => 2810 [patent_no_of_claims] => 18 [patent_no_of_ind_claims] => 4 [patent_words_short_claim] => 64 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/153/05153931.pdf [firstpage_image] =>[orig_patent_app_number] => 678520 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/678520
Fiber optic hydrogen sensor Mar 31, 1991 Issued
Array ( [id] => 2802231 [patent_doc_number] => 05103493 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1992-04-07 [patent_title] => 'Improved planar etched mirror facets' [patent_app_type] => 1 [patent_app_number] => 7/669817 [patent_app_country] => US [patent_app_date] => 1991-03-15 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 9 [patent_no_of_words] => 2981 [patent_no_of_claims] => 6 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 67 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/103/05103493.pdf [firstpage_image] =>[orig_patent_app_number] => 669817 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/669817
Improved planar etched mirror facets Mar 14, 1991 Issued
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