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] => 2683087 [patent_doc_number] => 05064264 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1991-11-12 [patent_title] => 'Photorefractive materials' [patent_app_type] => 1 [patent_app_number] => 7/604560 [patent_app_country] => US [patent_app_date] => 1990-10-26 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 5451 [patent_no_of_claims] => 17 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 48 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/064/05064264.pdf [firstpage_image] =>[orig_patent_app_number] => 604560 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/604560
Photorefractive materials Oct 25, 1990 Issued
Array ( [id] => 2712247 [patent_doc_number] => 05056886 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1991-10-15 [patent_title] => 'Optical switching device' [patent_app_type] => 1 [patent_app_number] => 7/603592 [patent_app_country] => US [patent_app_date] => 1990-10-25 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 2 [patent_figures_cnt] => 3 [patent_no_of_words] => 2963 [patent_no_of_claims] => 6 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 305 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/056/05056886.pdf [firstpage_image] =>[orig_patent_app_number] => 603592 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/603592
Optical switching device Oct 24, 1990 Issued
Array ( [id] => 2872247 [patent_doc_number] => 05150445 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1992-09-22 [patent_title] => 'Luminous display system incorporating optical fibers' [patent_app_type] => 1 [patent_app_number] => 7/598706 [patent_app_country] => US [patent_app_date] => 1990-10-22 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 2 [patent_figures_cnt] => 5 [patent_no_of_words] => 2073 [patent_no_of_claims] => 2 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 281 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/150/05150445.pdf [firstpage_image] =>[orig_patent_app_number] => 598706 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/598706
Luminous display system incorporating optical fibers Oct 21, 1990 Issued
Array ( [id] => 2838016 [patent_doc_number] => 05117474 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1992-05-26 [patent_title] => 'Device for injecting the light energy of a laser beam into a fibre-optic optical waveguide and a method for adjusting and monitoring the position of the end of the fibre-optic optical waveguide' [patent_app_type] => 1 [patent_app_number] => 7/591536 [patent_app_country] => US [patent_app_date] => 1990-10-02 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 1 [patent_figures_cnt] => 2 [patent_no_of_words] => 2314 [patent_no_of_claims] => 2 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 209 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/117/05117474.pdf [firstpage_image] =>[orig_patent_app_number] => 591536 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/591536
Device for injecting the light energy of a laser beam into a fibre-optic optical waveguide and a method for adjusting and monitoring the position of the end of the fibre-optic optical waveguide Oct 1, 1990 Issued
Array ( [id] => 2849478 [patent_doc_number] => 05121461 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1992-06-09 [patent_title] => 'Heat-resistant plastic optical fiber and process for the production thereof' [patent_app_type] => 1 [patent_app_number] => 7/590946 [patent_app_country] => US [patent_app_date] => 1990-10-01 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 1 [patent_figures_cnt] => 1 [patent_no_of_words] => 2172 [patent_no_of_claims] => 5 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 76 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/121/05121461.pdf [firstpage_image] =>[orig_patent_app_number] => 590946 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/590946
Heat-resistant plastic optical fiber and process for the production thereof Sep 30, 1990 Issued
Array ( [id] => 2795999 [patent_doc_number] => 05093887 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1992-03-03 [patent_title] => 'Sliding cable tray with cable pivot arm' [patent_app_type] => 1 [patent_app_number] => 7/590669 [patent_app_country] => US [patent_app_date] => 1990-09-28 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 7 [patent_no_of_words] => 2913 [patent_no_of_claims] => 15 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 126 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/093/05093887.pdf [firstpage_image] =>[orig_patent_app_number] => 590669 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/590669
Sliding cable tray with cable pivot arm Sep 27, 1990 Issued
07/581705 OPTICAL-FIBER INCORPORATED LONGER-SIZED SUBAQUEOUS UNIT Sep 12, 1990 Abandoned
Array ( [id] => 2736131 [patent_doc_number] => 05037171 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1991-08-06 [patent_title] => 'Optical fiber coupling structure' [patent_app_type] => 1 [patent_app_number] => 7/575020 [patent_app_country] => US [patent_app_date] => 1990-08-30 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 2 [patent_figures_cnt] => 6 [patent_no_of_words] => 2230 [patent_no_of_claims] => 5 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 151 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/037/05037171.pdf [firstpage_image] =>[orig_patent_app_number] => 575020 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/575020
Optical fiber coupling structure Aug 29, 1990 Issued
Array ( [id] => 2695899 [patent_doc_number] => 05054868 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1991-10-08 [patent_title] => 'Armored optical fiber cable interconnection for dual payout systems' [patent_app_type] => 1 [patent_app_number] => 7/576250 [patent_app_country] => US [patent_app_date] => 1990-08-29 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 7 [patent_no_of_words] => 5725 [patent_no_of_claims] => 18 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 235 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/054/05054868.pdf [firstpage_image] =>[orig_patent_app_number] => 576250 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/576250
Armored optical fiber cable interconnection for dual payout systems Aug 28, 1990 Issued
Array ( [id] => 2669984 [patent_doc_number] => 05066088 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1991-11-19 [patent_title] => 'Optical variable delay line and variable-frequency fiber-optic multiplexer' [patent_app_type] => 1 [patent_app_number] => 7/572835 [patent_app_country] => US [patent_app_date] => 1990-08-27 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 6 [patent_no_of_words] => 2928 [patent_no_of_claims] => 10 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 151 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/066/05066088.pdf [firstpage_image] =>[orig_patent_app_number] => 572835 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/572835
Optical variable delay line and variable-frequency fiber-optic multiplexer Aug 26, 1990 Issued
07/564605 OPTO-ELECTRONIC TRANSDUCER ARRANGEMENT HAVING A LENS-TYPE OPTICAL COUPLING Aug 8, 1990 Abandoned
Array ( [id] => 2675273 [patent_doc_number] => 05048909 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1991-09-17 [patent_title] => 'Adiabatic reflection apparatus' [patent_app_type] => 1 [patent_app_number] => 7/559010 [patent_app_country] => US [patent_app_date] => 1990-07-27 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 8 [patent_no_of_words] => 4040 [patent_no_of_claims] => 18 [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/05/048/05048909.pdf [firstpage_image] =>[orig_patent_app_number] => 559010 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/559010
Adiabatic reflection apparatus Jul 26, 1990 Issued
07/558933 INTERCONNECT ASSEMBLY FOR WALL OUTLET Jul 26, 1990 Abandoned
Array ( [id] => 2825903 [patent_doc_number] => 05123075 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1992-06-16 [patent_title] => 'Overhead electric and optical transmission systems' [patent_app_type] => 1 [patent_app_number] => 7/556450 [patent_app_country] => US [patent_app_date] => 1990-07-24 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 4 [patent_no_of_words] => 3390 [patent_no_of_claims] => 9 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 265 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/123/05123075.pdf [firstpage_image] =>[orig_patent_app_number] => 556450 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/556450
Overhead electric and optical transmission systems Jul 23, 1990 Issued
Array ( [id] => 2696929 [patent_doc_number] => 04981338 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1991-01-01 [patent_title] => 'Optical fiber refractometer' [patent_app_type] => 1 [patent_app_number] => 7/553040 [patent_app_country] => US [patent_app_date] => 1990-07-16 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 5 [patent_figures_cnt] => 10 [patent_no_of_words] => 3628 [patent_no_of_claims] => 2 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 154 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/981/04981338.pdf [firstpage_image] =>[orig_patent_app_number] => 553040 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/553040
Optical fiber refractometer Jul 15, 1990 Issued
Array ( [id] => 2883575 [patent_doc_number] => 05091982 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1992-02-25 [patent_title] => 'Waveguide type optical detection apparatus' [patent_app_type] => 1 [patent_app_number] => 7/550569 [patent_app_country] => US [patent_app_date] => 1990-07-10 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 9 [patent_figures_cnt] => 21 [patent_no_of_words] => 7702 [patent_no_of_claims] => 11 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 249 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/091/05091982.pdf [firstpage_image] =>[orig_patent_app_number] => 550569 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/550569
Waveguide type optical detection apparatus Jul 9, 1990 Issued
Array ( [id] => 2891957 [patent_doc_number] => 05109463 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1992-04-28 [patent_title] => 'Fiber optic lamp' [patent_app_type] => 1 [patent_app_number] => 7/543339 [patent_app_country] => US [patent_app_date] => 1990-06-25 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 7 [patent_figures_cnt] => 16 [patent_no_of_words] => 4149 [patent_no_of_claims] => 27 [patent_no_of_ind_claims] => 6 [patent_words_short_claim] => 155 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/109/05109463.pdf [firstpage_image] =>[orig_patent_app_number] => 543339 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/543339
Fiber optic lamp Jun 24, 1990 Issued
07/542980 PSEUDO-INTAGLIATED FIBER OPTIC PHOSPHOR SCREEN AND METHOD Jun 24, 1990 Abandoned
Array ( [id] => 2984775 [patent_doc_number] => 05182789 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1993-01-26 [patent_title] => 'Optical fiber holder' [patent_app_type] => 1 [patent_app_number] => 7/541105 [patent_app_country] => US [patent_app_date] => 1990-06-20 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 5 [patent_no_of_words] => 3662 [patent_no_of_claims] => 9 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 258 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/182/05182789.pdf [firstpage_image] =>[orig_patent_app_number] => 541105 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/541105
Optical fiber holder Jun 19, 1990 Issued
Array ( [id] => 2856178 [patent_doc_number] => 05096312 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1992-03-17 [patent_title] => 'Passive fiber-optic polarization control element' [patent_app_type] => 1 [patent_app_number] => 7/540786 [patent_app_country] => US [patent_app_date] => 1990-06-20 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 5 [patent_figures_cnt] => 9 [patent_no_of_words] => 3626 [patent_no_of_claims] => 9 [patent_no_of_ind_claims] => 5 [patent_words_short_claim] => 63 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/096/05096312.pdf [firstpage_image] =>[orig_patent_app_number] => 540786 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/540786
Passive fiber-optic polarization control element Jun 19, 1990 Issued
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