Search

Kenneth W. Chang

Examiner (ID: 16000, Phone: (571)270-7530 , Office: P/2438 )

Most Active Art Unit
2438
Art Unit(s)
2438
Total Applications
759
Issued Applications
630
Pending Applications
50
Abandoned Applications
103

Applications

Application numberTitle of the applicationFiling DateStatus
Array ( [id] => 18694319 [patent_doc_number] => 20230324727 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-10-12 [patent_title] => ISOLATOR AND ISOLATOR MANUFACTURING METHOD [patent_app_type] => utility [patent_app_number] => 18/190730 [patent_app_country] => US [patent_app_date] => 2023-03-27 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 6504 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -5 [patent_words_short_claim] => 62 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18190730 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/190730
Isolator and isolator manufacturing method Mar 26, 2023 Issued
Array ( [id] => 20257302 [patent_doc_number] => 12429650 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2025-09-30 [patent_title] => Photonic circuitry having stacked optical resonators [patent_app_type] => utility [patent_app_number] => 18/188102 [patent_app_country] => US [patent_app_date] => 2023-03-22 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 13 [patent_figures_cnt] => 13 [patent_no_of_words] => 5562 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 114 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18188102 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/188102
Photonic circuitry having stacked optical resonators Mar 21, 2023 Issued
Array ( [id] => 19898914 [patent_doc_number] => 12276833 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2025-04-15 [patent_title] => Multi-strip-loaded optical waveguide [patent_app_type] => utility [patent_app_number] => 18/186189 [patent_app_country] => US [patent_app_date] => 2023-03-19 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 13 [patent_figures_cnt] => 28 [patent_no_of_words] => 7654 [patent_no_of_claims] => 26 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 184 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18186189 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/186189
Multi-strip-loaded optical waveguide Mar 18, 2023 Issued
Array ( [id] => 18651001 [patent_doc_number] => 20230296836 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-09-21 [patent_title] => Strip-Loaded Optical Waveguide [patent_app_type] => utility [patent_app_number] => 18/186188 [patent_app_country] => US [patent_app_date] => 2023-03-19 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 12701 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -18 [patent_words_short_claim] => 128 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18186188 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/186188
Strip-loaded optical waveguide Mar 18, 2023 Issued
Array ( [id] => 19434089 [patent_doc_number] => 20240302587 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-09-12 [patent_title] => PHASE-DITHERING TECHNIQUES FOR ENCODING AUXILIARY INFORMATION WITHIN OPTICAL SIGNALS [patent_app_type] => utility [patent_app_number] => 18/120071 [patent_app_country] => US [patent_app_date] => 2023-03-10 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 11684 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 34 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18120071 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/120071
Phase-dithering techniques for encoding auxiliary information within optical signals Mar 9, 2023 Issued
Array ( [id] => 19434088 [patent_doc_number] => 20240302586 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-09-12 [patent_title] => FIBER-OPTIC LIGHT GUIDE WITH DEFORMED ENDS [patent_app_type] => utility [patent_app_number] => 18/180317 [patent_app_country] => US [patent_app_date] => 2023-03-08 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 10218 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -18 [patent_words_short_claim] => 97 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18180317 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/180317
Fiber-optic light guide with deformed ends Mar 7, 2023 Issued
Array ( [id] => 20358534 [patent_doc_number] => 12474526 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2025-11-18 [patent_title] => Managing photonic integrated circuit optical coupling [patent_app_type] => utility [patent_app_number] => 18/177844 [patent_app_country] => US [patent_app_date] => 2023-03-03 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 5 [patent_figures_cnt] => 5 [patent_no_of_words] => 0 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 228 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18177844 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/177844
Managing photonic integrated circuit optical coupling Mar 2, 2023 Issued
Array ( [id] => 20265352 [patent_doc_number] => 12436338 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2025-10-07 [patent_title] => Hitless optical power monitor [patent_app_type] => utility [patent_app_number] => 18/116696 [patent_app_country] => US [patent_app_date] => 2023-03-02 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 8 [patent_figures_cnt] => 13 [patent_no_of_words] => 1072 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 95 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18116696 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/116696
Hitless optical power monitor Mar 1, 2023 Issued
Array ( [id] => 20214630 [patent_doc_number] => 12411279 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2025-09-09 [patent_title] => Integrated circuit package and method of forming same [patent_app_type] => utility [patent_app_number] => 18/111290 [patent_app_country] => US [patent_app_date] => 2023-02-17 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 30 [patent_figures_cnt] => 36 [patent_no_of_words] => 5362 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 146 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18111290 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/111290
Integrated circuit package and method of forming same Feb 16, 2023 Issued
Array ( [id] => 20214632 [patent_doc_number] => 12411281 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2025-09-09 [patent_title] => Interferometric integrated optical gyroscopes [patent_app_type] => utility [patent_app_number] => 18/110989 [patent_app_country] => US [patent_app_date] => 2023-02-17 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 11 [patent_figures_cnt] => 13 [patent_no_of_words] => 0 [patent_no_of_claims] => 10 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 113 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18110989 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/110989
Interferometric integrated optical gyroscopes Feb 16, 2023 Issued
Array ( [id] => 19382518 [patent_doc_number] => 20240272388 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-08-15 [patent_title] => ARCHITECTURE AND METHOD FOR V GROOVE FIBER ATTACH FOR A PHOTONIC INTEGRATED CIRCUIT (PIC) [patent_app_type] => utility [patent_app_number] => 18/168927 [patent_app_country] => US [patent_app_date] => 2023-02-14 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 11044 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 63 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18168927 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/168927
ARCHITECTURE AND METHOD FOR V GROOVE FIBER ATTACH FOR A PHOTONIC INTEGRATED CIRCUIT (PIC) Feb 13, 2023 Pending
Array ( [id] => 19283176 [patent_doc_number] => 20240219652 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-07-04 [patent_title] => PHOTOELECTRIC TRANSCEIVER AND OPTICAL MODULE [patent_app_type] => utility [patent_app_number] => 18/107441 [patent_app_country] => US [patent_app_date] => 2023-02-08 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 2365 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -16 [patent_words_short_claim] => 87 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18107441 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/107441
PHOTOELECTRIC TRANSCEIVER AND OPTICAL MODULE Feb 7, 2023 Abandoned
Array ( [id] => 18989339 [patent_doc_number] => 20240061308 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-02-22 [patent_title] => OPTICAL DEVICE AND METHOD OF FABRICATING THEREOF [patent_app_type] => utility [patent_app_number] => 18/166016 [patent_app_country] => US [patent_app_date] => 2023-02-08 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 10644 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 74 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18166016 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/166016
OPTICAL DEVICE AND METHOD OF FABRICATING THEREOF Feb 7, 2023 Pending
Array ( [id] => 20747255 [patent_doc_number] => 12647185 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2026-06-02 [patent_title] => Optical transceiver [patent_app_type] => utility [patent_app_number] => 18/159768 [patent_app_country] => US [patent_app_date] => 2023-01-26 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 7 [patent_figures_cnt] => 7 [patent_no_of_words] => 0 [patent_no_of_claims] => 10 [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] =>[firstpage_image] =>[orig_patent_app_number] => 18159768 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/159768
Optical transceiver Jan 25, 2023 Issued
Array ( [id] => 18392908 [patent_doc_number] => 20230161128 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-05-25 [patent_title] => HEAT MANAGEMENT SYSTEMS FOR ENCLOSURES FOR POWER AND OPTICAL FIBER NETWORKS [patent_app_type] => utility [patent_app_number] => 18/159346 [patent_app_country] => US [patent_app_date] => 2023-01-25 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 7604 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -22 [patent_words_short_claim] => 126 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18159346 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/159346
Heat management systems for enclosures for power and optical fiber networks Jan 24, 2023 Issued
Array ( [id] => 18392898 [patent_doc_number] => 20230161118 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-05-25 [patent_title] => STACKABLE OPTICAL FERRULE AND CONNECTOR USING SAME [patent_app_type] => utility [patent_app_number] => 18/099432 [patent_app_country] => US [patent_app_date] => 2023-01-20 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 12310 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -8 [patent_words_short_claim] => 174 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18099432 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/099432
Stackable optical ferrule and connector using same Jan 19, 2023 Issued
Array ( [id] => 18498769 [patent_doc_number] => 20230221489 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-07-13 [patent_title] => METASURFACE OPTICAL DEVICE AND OPTICAL APPARATUS [patent_app_type] => utility [patent_app_number] => 18/153525 [patent_app_country] => US [patent_app_date] => 2023-01-12 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 5944 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -18 [patent_words_short_claim] => 76 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18153525 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/153525
METASURFACE OPTICAL DEVICE AND OPTICAL APPARATUS Jan 11, 2023 Abandoned
Array ( [id] => 20174215 [patent_doc_number] => 12392958 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2025-08-19 [patent_title] => Imaging lantern for enhanced optical transmission [patent_app_type] => utility [patent_app_number] => 18/096435 [patent_app_country] => US [patent_app_date] => 2023-01-12 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 27 [patent_figures_cnt] => 30 [patent_no_of_words] => 7799 [patent_no_of_claims] => 19 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 95 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18096435 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/096435
Imaging lantern for enhanced optical transmission Jan 11, 2023 Issued
Array ( [id] => 19267081 [patent_doc_number] => 20240210783 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-06-27 [patent_title] => OPTICAL MODULATOR WITH TWISTED ELECTRODES [patent_app_type] => utility [patent_app_number] => 18/069251 [patent_app_country] => US [patent_app_date] => 2022-12-21 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 7112 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 259 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18069251 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/069251
Optical modulator with twisted electrodes Dec 20, 2022 Issued
Array ( [id] => 18437746 [patent_doc_number] => 20230185041 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-06-15 [patent_title] => AERIAL DROP OPTICAL FIBER CABLE [patent_app_type] => utility [patent_app_number] => 18/081077 [patent_app_country] => US [patent_app_date] => 2022-12-14 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 5020 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -19 [patent_words_short_claim] => 94 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18081077 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/081077
Aerial drop optical fiber cable Dec 13, 2022 Issued
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