Search

Richard K. Chang

Examiner (ID: 15304, Phone: (571)270-3368 , Office: P/2464 )

Most Active Art Unit
2464
Art Unit(s)
2663, 2464, 2616
Total Applications
302
Issued Applications
252
Pending Applications
10
Abandoned Applications
46

Applications

Application numberTitle of the applicationFiling DateStatus
Array ( [id] => 18399788 [patent_doc_number] => 11661917 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2023-05-30 [patent_title] => Omnidirectional generator apparatus [patent_app_type] => utility [patent_app_number] => 17/273077 [patent_app_country] => US [patent_app_date] => 2019-08-12 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 5 [patent_figures_cnt] => 7 [patent_no_of_words] => 1688 [patent_no_of_claims] => 13 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 179 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17273077 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/273077
Omnidirectional generator apparatus Aug 11, 2019 Issued
Array ( [id] => 17998428 [patent_doc_number] => 11499529 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2022-11-15 [patent_title] => Method of balancing turbine blades [patent_app_type] => utility [patent_app_number] => 17/261236 [patent_app_country] => US [patent_app_date] => 2019-07-19 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 6 [patent_figures_cnt] => 6 [patent_no_of_words] => 8835 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 196 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17261236 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/261236
Method of balancing turbine blades Jul 18, 2019 Issued
Array ( [id] => 18355613 [patent_doc_number] => 11644007 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2023-05-09 [patent_title] => Rotor blade for a wind turbine and wind turbine [patent_app_type] => utility [patent_app_number] => 17/259881 [patent_app_country] => US [patent_app_date] => 2019-07-18 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 5 [patent_figures_cnt] => 6 [patent_no_of_words] => 5574 [patent_no_of_claims] => 10 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 301 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17259881 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/259881
Rotor blade for a wind turbine and wind turbine Jul 17, 2019 Issued
Array ( [id] => 17171161 [patent_doc_number] => 20210324831 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2021-10-21 [patent_title] => NOISE REDUCTION IN A WIND TURBINE WITH HINGED BLADES [patent_app_type] => utility [patent_app_number] => 17/260014 [patent_app_country] => US [patent_app_date] => 2019-07-16 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 10981 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -9 [patent_words_short_claim] => 129 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17260014 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/260014
NOISE REDUCTION IN A WIND TURBINE WITH HINGED BLADES Jul 15, 2019 Abandoned
Array ( [id] => 15087949 [patent_doc_number] => 20190338785 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2019-11-07 [patent_title] => VARIABLE GEOMETRY DIFFUSER HAVING EXTENDED TRAVEL AND CONTROL METHOD THEREOF [patent_app_type] => utility [patent_app_number] => 16/510622 [patent_app_country] => US [patent_app_date] => 2019-07-12 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 7576 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 95 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16510622 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/510622
Variable geometry diffuser having extended travel and control method thereof Jul 11, 2019 Issued
Array ( [id] => 15326251 [patent_doc_number] => 20200003455 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2020-01-02 [patent_title] => VARIABLE STAGE COMPRESSORS [patent_app_type] => utility [patent_app_number] => 16/455998 [patent_app_country] => US [patent_app_date] => 2019-06-28 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 1813 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -10 [patent_words_short_claim] => 57 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16455998 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/455998
Variable stage compressors Jun 27, 2019 Issued
Array ( [id] => 17800820 [patent_doc_number] => 11415110 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2022-08-16 [patent_title] => Wind turbine blade, a method of controlling a wind turbine, a control system, and a wind turbine [patent_app_type] => utility [patent_app_number] => 17/254800 [patent_app_country] => US [patent_app_date] => 2019-06-20 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 15 [patent_figures_cnt] => 15 [patent_no_of_words] => 10978 [patent_no_of_claims] => 12 [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] =>[firstpage_image] =>[orig_patent_app_number] => 17254800 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/254800
Wind turbine blade, a method of controlling a wind turbine, a control system, and a wind turbine Jun 19, 2019 Issued
Array ( [id] => 14995219 [patent_doc_number] => 20190316567 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2019-10-17 [patent_title] => HYBRID VERTICAL/HORIZONTAL AXIS WIND TURBINE FOR DEEP-WATER OFFSHORE INSTALLATIONS [patent_app_type] => utility [patent_app_number] => 16/426286 [patent_app_country] => US [patent_app_date] => 2019-05-30 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 9445 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -23 [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] => 16426286 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/426286
Hybrid vertical/horizontal axis wind turbine for deep-water offshore installations May 29, 2019 Issued
Array ( [id] => 16483606 [patent_doc_number] => 20200377206 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2020-12-03 [patent_title] => ROTOR BLADE FOLDING SYSTEM [patent_app_type] => utility [patent_app_number] => 16/426787 [patent_app_country] => US [patent_app_date] => 2019-05-30 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 4368 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 121 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16426787 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/426787
Rotor blade folding system May 29, 2019 Issued
Array ( [id] => 15325487 [patent_doc_number] => 20200003073 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2020-01-02 [patent_title] => VARIABLE STATOR VANE ARRANGEMENT [patent_app_type] => utility [patent_app_number] => 16/419286 [patent_app_country] => US [patent_app_date] => 2019-05-22 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 10039 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -14 [patent_words_short_claim] => 95 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16419286 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/419286
VARIABLE STATOR VANE ARRANGEMENT May 21, 2019 Abandoned
Array ( [id] => 17436430 [patent_doc_number] => 11261747 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2022-03-01 [patent_title] => Ceramic matrix composite vane with added platform [patent_app_type] => utility [patent_app_number] => 16/415172 [patent_app_country] => US [patent_app_date] => 2019-05-17 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 5 [patent_no_of_words] => 5353 [patent_no_of_claims] => 13 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 149 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16415172 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/415172
Ceramic matrix composite vane with added platform May 16, 2019 Issued
Array ( [id] => 16453342 [patent_doc_number] => 20200362768 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2020-11-19 [patent_title] => VARIABLE AREA TURBINE NOZZLE AND METHOD [patent_app_type] => utility [patent_app_number] => 16/412771 [patent_app_country] => US [patent_app_date] => 2019-05-15 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 6119 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 90 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16412771 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/412771
Variable area turbine nozzle and method May 14, 2019 Issued
Array ( [id] => 16422827 [patent_doc_number] => 20200348025 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2020-11-05 [patent_title] => NESTING CMC COMPONENTS [patent_app_type] => utility [patent_app_number] => 16/403535 [patent_app_country] => US [patent_app_date] => 2019-05-04 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 4466 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 58 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16403535 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/403535
Nesting CMC components May 3, 2019 Issued
Array ( [id] => 16916999 [patent_doc_number] => 20210190091 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2021-06-24 [patent_title] => COMPRESSOR INLET ARRANGEMENT [patent_app_type] => utility [patent_app_number] => 17/051878 [patent_app_country] => US [patent_app_date] => 2019-05-01 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 9665 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -15 [patent_words_short_claim] => 121 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17051878 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/051878
Compressor inlet arrangement Apr 30, 2019 Issued
Array ( [id] => 15087947 [patent_doc_number] => 20190338784 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2019-11-07 [patent_title] => Volute Mechanism of a Centrifugal Fan [patent_app_type] => utility [patent_app_number] => 16/399512 [patent_app_country] => US [patent_app_date] => 2019-04-30 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 4246 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -13 [patent_words_short_claim] => 93 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16399512 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/399512
Volute mechanism of a centrifugal fan Apr 29, 2019 Issued
Array ( [id] => 17244218 [patent_doc_number] => 20210363961 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2021-11-25 [patent_title] => FLEXIBLE WIND TURBINE BLADE WITH ACTIVELY VARIABLE TWIST DISTRIBUTION [patent_app_type] => utility [patent_app_number] => 17/051427 [patent_app_country] => US [patent_app_date] => 2019-04-29 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 38239 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -18 [patent_words_short_claim] => 64 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17051427 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/051427
FLEXIBLE WIND TURBINE BLADE WITH ACTIVELY VARIABLE TWIST DISTRIBUTION Apr 28, 2019 Abandoned
Array ( [id] => 16842579 [patent_doc_number] => 11014647 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2021-05-25 [patent_title] => Locking mechanism, propeller, motor, propulsion system assembly, and aircraft [patent_app_type] => utility [patent_app_number] => 16/395464 [patent_app_country] => US [patent_app_date] => 2019-04-26 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 13 [patent_figures_cnt] => 13 [patent_no_of_words] => 7917 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 2 [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] => 16395464 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/395464
Locking mechanism, propeller, motor, propulsion system assembly, and aircraft Apr 25, 2019 Issued
Array ( [id] => 15025029 [patent_doc_number] => 20190323519 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2019-10-24 [patent_title] => COMPRESSOR DIFFUSER AND GAS TURBINE [patent_app_type] => utility [patent_app_number] => 16/385694 [patent_app_country] => US [patent_app_date] => 2019-04-16 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 5545 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -4 [patent_words_short_claim] => 132 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16385694 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/385694
COMPRESSOR DIFFUSER AND GAS TURBINE Apr 15, 2019 Abandoned
Array ( [id] => 15039969 [patent_doc_number] => 20190330989 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2019-10-31 [patent_title] => COOLANT CHANNEL [patent_app_type] => utility [patent_app_number] => 16/382312 [patent_app_country] => US [patent_app_date] => 2019-04-12 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 8506 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -19 [patent_words_short_claim] => 105 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16382312 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/382312
Coolant channel Apr 11, 2019 Issued
Array ( [id] => 16377071 [patent_doc_number] => 20200325913 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2020-10-15 [patent_title] => VIBRATION ISOLATING MOUNTING OF FAN [patent_app_type] => utility [patent_app_number] => 16/379871 [patent_app_country] => US [patent_app_date] => 2019-04-10 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 5201 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -18 [patent_words_short_claim] => 256 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16379871 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/379871
Vibration isolating mounting of fan Apr 9, 2019 Issued
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