Fang-chi Chang

Array ( [id] => 19219359 [patent_doc_number] => 20240184063 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-06-06 [patent_title] => SYSTEM AND APPARATUS OF CONTROLLING RING RESONATOR OPERATING POINTS [patent_app_type] => utility [patent_app_number] => 18/440695 [patent_app_country] => US [patent_app_date] => 2024-02-13 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 7005 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -1 [patent_words_short_claim] => 112 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18440695 [rel_patent_id] =>[rel_patent_doc_number] =>)

Array ( [id] => 19580969 [patent_doc_number] => 12147078 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2024-11-19 [patent_title] => Polarization locker for fiber connections and related methods [patent_app_type] => utility [patent_app_number] => 18/504676 [patent_app_country] => US [patent_app_date] => 2023-11-08 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 5 [patent_figures_cnt] => 5 [patent_no_of_words] => 4978 [patent_no_of_claims] => 19 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 81 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18504676 [rel_patent_id] =>[rel_patent_doc_number] =>)

Array ( [id] => 18941138 [patent_doc_number] => 20240036277 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-02-01 [patent_title] => SHORT-WAVEBAND ACTIVE OPTICAL COMPONENT BASED ON VERTICAL EMITTING LASER AND MULTI-MODE OPTICAL FIBER [patent_app_type] => utility [patent_app_number] => 18/480455 [patent_app_country] => US [patent_app_date] => 2023-10-03 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 3151 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [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] => 18480455 [rel_patent_id] =>[rel_patent_doc_number] =>)

Array ( [id] => 19117294 [patent_doc_number] => 20240129044 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-04-18 [patent_title] => POINT-TO-POINT OPTICAL COMMUNICATION VIA A FREE SPACE LINK [patent_app_type] => utility [patent_app_number] => 18/474391 [patent_app_country] => US [patent_app_date] => 2023-09-26 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 8795 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -14 [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] => 18474391 [rel_patent_id] =>[rel_patent_doc_number] =>)

Array ( [id] => 20581724 [patent_doc_number] => 12573982 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2026-03-10 [patent_title] => Photonic power conversion and inter-facility distribution [patent_app_type] => utility [patent_app_number] => 18/997166 [patent_app_country] => US [patent_app_date] => 2023-08-04 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 36 [patent_figures_cnt] => 44 [patent_no_of_words] => 5665 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 188 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18997166 [rel_patent_id] =>[rel_patent_doc_number] =>)

Array ( [id] => 19779739 [patent_doc_number] => 12228769 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2025-02-18 [patent_title] => Photonic-chip based optical heterodyne detection using frequency combs [patent_app_type] => utility [patent_app_number] => 18/354187 [patent_app_country] => US [patent_app_date] => 2023-07-18 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 7 [patent_figures_cnt] => 13 [patent_no_of_words] => 6875 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 27 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18354187 [rel_patent_id] =>[rel_patent_doc_number] =>)

Array ( [id] => 18694210 [patent_doc_number] => 20230324616 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-10-12 [patent_title] => Wavelength Division Multiplexing Filter for Multiplexing or Demultiplexing Using Cascaded Frequency Shaping [patent_app_type] => utility [patent_app_number] => 18/334661 [patent_app_country] => US [patent_app_date] => 2023-06-14 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 10223 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => 0 [patent_words_short_claim] => 159 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18334661 [rel_patent_id] =>[rel_patent_doc_number] =>)

Array ( [id] => 18828124 [patent_doc_number] => 11843417 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2023-12-12 [patent_title] => Programmable two-dimensional simultaneous multi-beam optically operated phased array receiver chip and multi-beam control method [patent_app_type] => utility [patent_app_number] => 18/197751 [patent_app_country] => US [patent_app_date] => 2023-05-16 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 6 [patent_figures_cnt] => 6 [patent_no_of_words] => 4328 [patent_no_of_claims] => 9 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 395 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18197751 [rel_patent_id] =>[rel_patent_doc_number] =>)

Array ( [id] => 18571102 [patent_doc_number] => 20230261439 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-08-17 [patent_title] => APPARATUS WITH NON-LINEAR FILTER [patent_app_type] => utility [patent_app_number] => 18/304273 [patent_app_country] => US [patent_app_date] => 2023-04-20 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 2384 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => 0 [patent_words_short_claim] => 2 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18304273 [rel_patent_id] =>[rel_patent_doc_number] =>)

Array ( [id] => 18659232 [patent_doc_number] => 20230305235 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-09-28 [patent_title] => OPTICAL MULTI-COUPLER WITH CORRECTING ELEMENT AND PRODUCTION METHOD FOR THIS PURPOSE [patent_app_type] => utility [patent_app_number] => 18/124937 [patent_app_country] => US [patent_app_date] => 2023-03-22 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 5774 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -18 [patent_words_short_claim] => 99 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18124937 [rel_patent_id] =>[rel_patent_doc_number] =>)

Array ( [id] => 18515083 [patent_doc_number] => 20230231358 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-07-20 [patent_title] => OPTICAL COMMUNICATION INTERFACE [patent_app_type] => utility [patent_app_number] => 18/162004 [patent_app_country] => US [patent_app_date] => 2023-01-31 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 10157 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 2 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18162004 [rel_patent_id] =>[rel_patent_doc_number] =>)

Array ( [id] => 20552010 [patent_doc_number] => 12562814 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2026-02-24 [patent_title] => Full duplex optical communications with modulated retro reflector [patent_app_type] => utility [patent_app_number] => 18/156758 [patent_app_country] => US [patent_app_date] => 2023-01-19 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 16 [patent_figures_cnt] => 16 [patent_no_of_words] => 17188 [patent_no_of_claims] => 30 [patent_no_of_ind_claims] => 4 [patent_words_short_claim] => 116 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18156758 [rel_patent_id] =>[rel_patent_doc_number] =>)

Array ( [id] => 20346559 [patent_doc_number] => 12470296 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2025-11-11 [patent_title] => System and method for reducing polarization dependent loss in an optical link [patent_app_type] => utility [patent_app_number] => 18/154468 [patent_app_country] => US [patent_app_date] => 2023-01-13 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 8 [patent_figures_cnt] => 8 [patent_no_of_words] => 1737 [patent_no_of_claims] => 13 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 271 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18154468 [rel_patent_id] =>[rel_patent_doc_number] =>)

Array ( [id] => 19413062 [patent_doc_number] => 12078876 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2024-09-03 [patent_title] => Integrated wavelength selector [patent_app_type] => utility [patent_app_number] => 18/096716 [patent_app_country] => US [patent_app_date] => 2023-01-13 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 9 [patent_figures_cnt] => 11 [patent_no_of_words] => 5953 [patent_no_of_claims] => 10 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 40 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18096716 [rel_patent_id] =>[rel_patent_doc_number] =>)

Array ( [id] => 19077804 [patent_doc_number] => 11947162 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2024-04-02 [patent_title] => Guiding apparatus for an imaging light path and guiding method thereof [patent_app_type] => utility [patent_app_number] => 18/087311 [patent_app_country] => US [patent_app_date] => 2022-12-22 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 23 [patent_figures_cnt] => 36 [patent_no_of_words] => 4839 [patent_no_of_claims] => 11 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 144 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18087311 [rel_patent_id] =>[rel_patent_doc_number] =>)

Array ( [id] => 18212676 [patent_doc_number] => 20230058940 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-02-23 [patent_title] => DETECTION STRUCTURE AND METHOD FOR FEED-FORWARD PUMP FAILURE IN L-BAND OPTICAL FIBER AMPLIFIER [patent_app_type] => utility [patent_app_number] => 17/821599 [patent_app_country] => US [patent_app_date] => 2022-08-23 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 3137 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -14 [patent_words_short_claim] => 201 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17821599 [rel_patent_id] =>[rel_patent_doc_number] =>)

Array ( [id] => 18911524 [patent_doc_number] => 11874501 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2024-01-16 [patent_title] => Systems and methods to maintain phase relations of an optical signal in a photonic dot product engine [patent_app_type] => utility [patent_app_number] => 17/891276 [patent_app_country] => US [patent_app_date] => 2022-08-19 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 13 [patent_figures_cnt] => 17 [patent_no_of_words] => 8529 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 124 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17891276 [rel_patent_id] =>[rel_patent_doc_number] =>)

Array ( [id] => 18755524 [patent_doc_number] => 20230358963 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-11-09 [patent_title] => FIBER COMBINER WITH A CAPILLARY [patent_app_type] => utility [patent_app_number] => 17/817762 [patent_app_country] => US [patent_app_date] => 2022-08-05 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 7304 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 47 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17817762 [rel_patent_id] =>[rel_patent_doc_number] =>)

Array ( [id] => 19917244 [patent_doc_number] => 12292610 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2025-05-06 [patent_title] => Optical fiber cable [patent_app_type] => utility [patent_app_number] => 17/878971 [patent_app_country] => US [patent_app_date] => 2022-08-02 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 5 [patent_figures_cnt] => 6 [patent_no_of_words] => 2084 [patent_no_of_claims] => 3 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 116 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17878971 [rel_patent_id] =>[rel_patent_doc_number] =>)

Array ( [id] => 19810724 [patent_doc_number] => 12242112 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2025-03-04 [patent_title] => Electro-optical conversion system [patent_app_type] => utility [patent_app_number] => 17/724011 [patent_app_country] => US [patent_app_date] => 2022-04-19 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 2 [patent_figures_cnt] => 3 [patent_no_of_words] => 8134 [patent_no_of_claims] => 15 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 140 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17724011 [rel_patent_id] =>[rel_patent_doc_number] =>)