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] => 2991045 [patent_doc_number] => 05204922 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1993-04-20 [patent_title] => 'Optical signal channel selector' [patent_app_type] => 1 [patent_app_number] => 7/780477 [patent_app_country] => US [patent_app_date] => 1991-10-22 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 4 [patent_no_of_words] => 4197 [patent_no_of_claims] => 35 [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/05/204/05204922.pdf [firstpage_image] =>[orig_patent_app_number] => 780477 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/780477
Optical signal channel selector Oct 21, 1991 Issued
Array ( [id] => 2819500 [patent_doc_number] => 05157755 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1992-10-20 [patent_title] => 'Hermetically coated optical fiber' [patent_app_type] => 1 [patent_app_number] => 7/774167 [patent_app_country] => US [patent_app_date] => 1991-10-15 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 2 [patent_figures_cnt] => 5 [patent_no_of_words] => 3441 [patent_no_of_claims] => 3 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 80 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/157/05157755.pdf [firstpage_image] =>[orig_patent_app_number] => 774167 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/774167
Hermetically coated optical fiber Oct 14, 1991 Issued
Array ( [id] => 2955236 [patent_doc_number] => 05224198 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1993-06-29 [patent_title] => 'Waveguide virtual image display' [patent_app_type] => 1 [patent_app_number] => 7/767180 [patent_app_country] => US [patent_app_date] => 1991-09-30 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 5 [patent_figures_cnt] => 13 [patent_no_of_words] => 3192 [patent_no_of_claims] => 12 [patent_no_of_ind_claims] => 4 [patent_words_short_claim] => 118 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/224/05224198.pdf [firstpage_image] =>[orig_patent_app_number] => 767180 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/767180
Waveguide virtual image display Sep 29, 1991 Issued
Array ( [id] => 2971692 [patent_doc_number] => 05199097 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1993-03-30 [patent_title] => 'Light wavelength shifter' [patent_app_type] => 1 [patent_app_number] => 7/765734 [patent_app_country] => US [patent_app_date] => 1991-09-26 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 2 [patent_figures_cnt] => 5 [patent_no_of_words] => 2086 [patent_no_of_claims] => 2 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 101 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/199/05199097.pdf [firstpage_image] =>[orig_patent_app_number] => 765734 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/765734
Light wavelength shifter Sep 25, 1991 Issued
Array ( [id] => 2882189 [patent_doc_number] => 05163106 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1992-11-10 [patent_title] => 'Waveguide-type optical switch' [patent_app_type] => 1 [patent_app_number] => 7/763196 [patent_app_country] => US [patent_app_date] => 1991-09-20 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 9 [patent_figures_cnt] => 10 [patent_no_of_words] => 4783 [patent_no_of_claims] => 19 [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/05/163/05163106.pdf [firstpage_image] =>[orig_patent_app_number] => 763196 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/763196
Waveguide-type optical switch Sep 19, 1991 Issued
Array ( [id] => 2946408 [patent_doc_number] => 05230034 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1993-07-20 [patent_title] => 'All dielectric self-supporting fiber optic cable' [patent_app_type] => 1 [patent_app_number] => 7/763410 [patent_app_country] => US [patent_app_date] => 1991-09-20 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 2 [patent_figures_cnt] => 3 [patent_no_of_words] => 6104 [patent_no_of_claims] => 52 [patent_no_of_ind_claims] => 4 [patent_words_short_claim] => 66 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/230/05230034.pdf [firstpage_image] =>[orig_patent_app_number] => 763410 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/763410
All dielectric self-supporting fiber optic cable Sep 19, 1991 Issued
Array ( [id] => 2951087 [patent_doc_number] => 05191632 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1993-03-02 [patent_title] => 'Splice actuator tool' [patent_app_type] => 1 [patent_app_number] => 7/763112 [patent_app_country] => US [patent_app_date] => 1991-09-20 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 2 [patent_figures_cnt] => 5 [patent_no_of_words] => 2480 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 63 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/191/05191632.pdf [firstpage_image] =>[orig_patent_app_number] => 763112 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/763112
Splice actuator tool Sep 19, 1991 Issued
Array ( [id] => 2924557 [patent_doc_number] => 05237630 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1993-08-17 [patent_title] => 'Fiber optic device with reflector located at splice joint' [patent_app_type] => 1 [patent_app_number] => 7/763444 [patent_app_country] => US [patent_app_date] => 1991-09-20 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 9 [patent_figures_cnt] => 24 [patent_no_of_words] => 5883 [patent_no_of_claims] => 22 [patent_no_of_ind_claims] => 7 [patent_words_short_claim] => 141 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/237/05237630.pdf [firstpage_image] =>[orig_patent_app_number] => 763444 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/763444
Fiber optic device with reflector located at splice joint Sep 19, 1991 Issued
Array ( [id] => 2835526 [patent_doc_number] => 05170458 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1992-12-08 [patent_title] => 'Optical fiber light-amplifier system' [patent_app_type] => 1 [patent_app_number] => 7/763215 [patent_app_country] => US [patent_app_date] => 1991-09-20 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 3 [patent_no_of_words] => 3494 [patent_no_of_claims] => 2 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 124 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/170/05170458.pdf [firstpage_image] =>[orig_patent_app_number] => 763215 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/763215
Optical fiber light-amplifier system Sep 19, 1991 Issued
Array ( [id] => 2855982 [patent_doc_number] => 05138678 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1992-08-11 [patent_title] => 'Connector with a variable direction strain relief' [patent_app_type] => 1 [patent_app_number] => 7/763108 [patent_app_country] => US [patent_app_date] => 1991-09-20 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 5 [patent_figures_cnt] => 5 [patent_no_of_words] => 2317 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 79 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/138/05138678.pdf [firstpage_image] =>[orig_patent_app_number] => 763108 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/763108
Connector with a variable direction strain relief Sep 19, 1991 Issued
Array ( [id] => 2957362 [patent_doc_number] => 05181269 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1993-01-19 [patent_title] => 'Optical fiber including acidic coating system' [patent_app_type] => 1 [patent_app_number] => 7/761135 [patent_app_country] => US [patent_app_date] => 1991-09-17 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 2 [patent_figures_cnt] => 6 [patent_no_of_words] => 3851 [patent_no_of_claims] => 16 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 83 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/181/05181269.pdf [firstpage_image] =>[orig_patent_app_number] => 761135 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/761135
Optical fiber including acidic coating system Sep 16, 1991 Issued
Array ( [id] => 3093119 [patent_doc_number] => 05321789 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1994-06-14 [patent_title] => 'Projection display apparatus, and light guide tube/light valve for use in the same' [patent_app_type] => 1 [patent_app_number] => 7/760887 [patent_app_country] => US [patent_app_date] => 1991-09-17 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 16 [patent_figures_cnt] => 18 [patent_no_of_words] => 6581 [patent_no_of_claims] => 56 [patent_no_of_ind_claims] => 8 [patent_words_short_claim] => 70 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/321/05321789.pdf [firstpage_image] =>[orig_patent_app_number] => 760887 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/760887
Projection display apparatus, and light guide tube/light valve for use in the same Sep 16, 1991 Issued
Array ( [id] => 2819304 [patent_doc_number] => 05157745 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1992-10-20 [patent_title] => 'Multi-channel fiber optic rotary joint for single-mode fiber' [patent_app_type] => 1 [patent_app_number] => 7/760635 [patent_app_country] => US [patent_app_date] => 1991-09-16 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 6 [patent_no_of_words] => 4554 [patent_no_of_claims] => 13 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 182 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/157/05157745.pdf [firstpage_image] =>[orig_patent_app_number] => 760635 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/760635
Multi-channel fiber optic rotary joint for single-mode fiber Sep 15, 1991 Issued
Array ( [id] => 3022613 [patent_doc_number] => 05276761 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1994-01-04 [patent_title] => 'Hollow waveguide for ultraviolet wavelength region laser beams' [patent_app_type] => 1 [patent_app_number] => 7/759598 [patent_app_country] => US [patent_app_date] => 1991-09-16 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 11 [patent_no_of_words] => 2783 [patent_no_of_claims] => 5 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 134 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/276/05276761.pdf [firstpage_image] =>[orig_patent_app_number] => 759598 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/759598
Hollow waveguide for ultraviolet wavelength region laser beams Sep 15, 1991 Issued
Array ( [id] => 2803229 [patent_doc_number] => 05136667 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1992-08-04 [patent_title] => 'Fiber optic gyro' [patent_app_type] => 1 [patent_app_number] => 7/759436 [patent_app_country] => US [patent_app_date] => 1991-09-13 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 2 [patent_figures_cnt] => 6 [patent_no_of_words] => 2527 [patent_no_of_claims] => 4 [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/05/136/05136667.pdf [firstpage_image] =>[orig_patent_app_number] => 759436 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/759436
Fiber optic gyro Sep 12, 1991 Issued
Array ( [id] => 2817400 [patent_doc_number] => 05122638 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1992-06-16 [patent_title] => 'Optical fiber fusion splicer' [patent_app_type] => 1 [patent_app_number] => 7/759439 [patent_app_country] => US [patent_app_date] => 1991-09-13 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 7 [patent_figures_cnt] => 10 [patent_no_of_words] => 1843 [patent_no_of_claims] => 5 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 124 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/122/05122638.pdf [firstpage_image] =>[orig_patent_app_number] => 759439 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/759439
Optical fiber fusion splicer Sep 12, 1991 Issued
Array ( [id] => 2939157 [patent_doc_number] => 05187756 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1993-02-16 [patent_title] => 'Surface acoustic waveguide device and manufacturing method' [patent_app_type] => 1 [patent_app_number] => 7/758608 [patent_app_country] => US [patent_app_date] => 1991-09-12 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 8 [patent_no_of_words] => 2844 [patent_no_of_claims] => 11 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 120 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/187/05187756.pdf [firstpage_image] =>[orig_patent_app_number] => 758608 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/758608
Surface acoustic waveguide device and manufacturing method Sep 11, 1991 Issued
Array ( [id] => 2872206 [patent_doc_number] => 05167001 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1992-11-24 [patent_title] => 'Optical fiber storage and connector tray and shelf and tray assembly' [patent_app_type] => 1 [patent_app_number] => 7/753587 [patent_app_country] => US [patent_app_date] => 1991-09-03 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 5 [patent_figures_cnt] => 10 [patent_no_of_words] => 5081 [patent_no_of_claims] => 15 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 233 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/167/05167001.pdf [firstpage_image] =>[orig_patent_app_number] => 753587 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/753587
Optical fiber storage and connector tray and shelf and tray assembly Sep 2, 1991 Issued
Array ( [id] => 2987833 [patent_doc_number] => 05226100 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1993-07-06 [patent_title] => 'Optical grating comprising a plurality of side-by-side outfeed end faces of optical waveguides' [patent_app_type] => 1 [patent_app_number] => 7/749693 [patent_app_country] => US [patent_app_date] => 1991-08-26 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 6 [patent_no_of_words] => 4849 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 122 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/226/05226100.pdf [firstpage_image] =>[orig_patent_app_number] => 749693 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/749693
Optical grating comprising a plurality of side-by-side outfeed end faces of optical waveguides Aug 25, 1991 Issued
Array ( [id] => 2960634 [patent_doc_number] => 05222173 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1993-06-22 [patent_title] => 'Electro-optical overhead wire with at least 24 light wave guides' [patent_app_type] => 1 [patent_app_number] => 7/749700 [patent_app_country] => US [patent_app_date] => 1991-08-26 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 1 [patent_figures_cnt] => 3 [patent_no_of_words] => 1852 [patent_no_of_claims] => 8 [patent_no_of_ind_claims] => 5 [patent_words_short_claim] => 87 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/222/05222173.pdf [firstpage_image] =>[orig_patent_app_number] => 749700 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/749700
Electro-optical overhead wire with at least 24 light wave guides Aug 25, 1991 Issued
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