Search

Leshui Zhang

Examiner (ID: 18986, Phone: (571)270-5589 , Office: P/2654 )

Most Active Art Unit
2654
Art Unit(s)
2614, 2695, 2654
Total Applications
999
Issued Applications
723
Pending Applications
88
Abandoned Applications
211

Applications

Application numberTitle of the applicationFiling DateStatus
Array ( [id] => 18996585 [patent_doc_number] => 11913419 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2024-02-27 [patent_title] => Underwater power generator [patent_app_type] => utility [patent_app_number] => 18/142556 [patent_app_country] => US [patent_app_date] => 2023-05-02 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 6 [patent_no_of_words] => 2063 [patent_no_of_claims] => 4 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 340 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18142556 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/142556
Underwater power generator May 1, 2023 Issued
Array ( [id] => 18582272 [patent_doc_number] => 20230264527 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-08-24 [patent_title] => SELF-REINFLATING TIRE [patent_app_type] => utility [patent_app_number] => 18/142072 [patent_app_country] => US [patent_app_date] => 2023-05-02 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 15275 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -11 [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] => 18142072 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/142072
SELF-REINFLATING TIRE May 1, 2023 Abandoned
Array ( [id] => 19779085 [patent_doc_number] => 12228109 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2025-02-18 [patent_title] => Method for operating a wind turbine and a wind turbine [patent_app_type] => utility [patent_app_number] => 18/308697 [patent_app_country] => US [patent_app_date] => 2023-04-28 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 5 [patent_figures_cnt] => 7 [patent_no_of_words] => 10383 [patent_no_of_claims] => 15 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 96 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18308697 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/308697
Method for operating a wind turbine and a wind turbine Apr 27, 2023 Issued
Array ( [id] => 19312169 [patent_doc_number] => 12037973 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2024-07-16 [patent_title] => Hydroelectric system for production of electricity in open water [patent_app_type] => utility [patent_app_number] => 18/305449 [patent_app_country] => US [patent_app_date] => 2023-04-24 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 7 [patent_figures_cnt] => 7 [patent_no_of_words] => 3909 [patent_no_of_claims] => 18 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 246 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18305449 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/305449
Hydroelectric system for production of electricity in open water Apr 23, 2023 Issued
Array ( [id] => 20527864 [patent_doc_number] => 12546294 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2026-02-10 [patent_title] => Wheel generator having a coupling system [patent_app_type] => utility [patent_app_number] => 18/858870 [patent_app_country] => US [patent_app_date] => 2023-04-18 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 12 [patent_figures_cnt] => 12 [patent_no_of_words] => 3760 [patent_no_of_claims] => 14 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 345 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18858870 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/858870
Wheel generator having a coupling system Apr 17, 2023 Issued
Array ( [id] => 18552779 [patent_doc_number] => 20230250790 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-08-10 [patent_title] => Marine-Pumped Hydroelectric Energy Storage [patent_app_type] => utility [patent_app_number] => 18/300168 [patent_app_country] => US [patent_app_date] => 2023-04-13 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 12547 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -29 [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] => 18300168 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/300168
Marine-Pumped Hydroelectric Energy Storage Apr 12, 2023 Abandoned
Array ( [id] => 18589765 [patent_doc_number] => 11738641 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2023-08-29 [patent_title] => Flexible arm generator [patent_app_type] => utility [patent_app_number] => 18/126303 [patent_app_country] => US [patent_app_date] => 2023-03-24 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 26 [patent_figures_cnt] => 27 [patent_no_of_words] => 11657 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 130 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18126303 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/126303
Flexible arm generator Mar 23, 2023 Issued
Array ( [id] => 20350412 [patent_doc_number] => 20250347264 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-11-13 [patent_title] => TURBINE [patent_app_type] => utility [patent_app_number] => 18/860029 [patent_app_country] => US [patent_app_date] => 2023-03-14 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 3458 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -24 [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] => 18860029 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/860029
TURBINE Mar 13, 2023 Pending
Array ( [id] => 18538229 [patent_doc_number] => 20230243332 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-08-03 [patent_title] => VERTICAL SPIRAL WIND TURBINE [patent_app_type] => utility [patent_app_number] => 18/120249 [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] => 5056 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -13 [patent_words_short_claim] => 101 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18120249 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/120249
VERTICAL SPIRAL WIND TURBINE Mar 9, 2023 Abandoned
Array ( [id] => 19274978 [patent_doc_number] => 12025096 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2024-07-02 [patent_title] => Guide vane assembly for a vertical axis wind turbine [patent_app_type] => utility [patent_app_number] => 18/180876 [patent_app_country] => US [patent_app_date] => 2023-03-09 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 5 [patent_no_of_words] => 4462 [patent_no_of_claims] => 17 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 226 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18180876 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/180876
Guide vane assembly for a vertical axis wind turbine Mar 8, 2023 Issued
Array ( [id] => 19242499 [patent_doc_number] => 12012923 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2024-06-18 [patent_title] => Power storage system [patent_app_type] => utility [patent_app_number] => 18/118652 [patent_app_country] => US [patent_app_date] => 2023-03-07 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 8 [patent_figures_cnt] => 14 [patent_no_of_words] => 3579 [patent_no_of_claims] => 14 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 452 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18118652 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/118652
Power storage system Mar 6, 2023 Issued
Array ( [id] => 19230126 [patent_doc_number] => 12009771 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2024-06-11 [patent_title] => Doubly fed induction generator speed control system and method for controlling the system [patent_app_type] => utility [patent_app_number] => 18/178207 [patent_app_country] => US [patent_app_date] => 2023-03-03 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 15 [patent_figures_cnt] => 22 [patent_no_of_words] => 8789 [patent_no_of_claims] => 18 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 294 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18178207 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/178207
Doubly fed induction generator speed control system and method for controlling the system Mar 2, 2023 Issued
Array ( [id] => 18469731 [patent_doc_number] => 20230204015 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-06-29 [patent_title] => STRAY CURRENT DETECTION IN WIND TURBINE GENERATORS [patent_app_type] => utility [patent_app_number] => 18/113696 [patent_app_country] => US [patent_app_date] => 2023-02-24 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 4473 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -8 [patent_words_short_claim] => 103 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18113696 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/113696
Stray current detection in wind turbine generators Feb 23, 2023 Issued
Array ( [id] => 18552782 [patent_doc_number] => 20230250793 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-08-10 [patent_title] => MPPT HIGH LEVEL CONTROL OF A TURBINE CLUSTER [patent_app_type] => utility [patent_app_number] => 18/113366 [patent_app_country] => US [patent_app_date] => 2023-02-23 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 57862 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -21 [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] => 18113366 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/113366
MPPT high level control of a turbine cluster Feb 22, 2023 Issued
Array ( [id] => 19702169 [patent_doc_number] => 12196185 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2025-01-14 [patent_title] => Electrolytic unit housing with pressure-relief area [patent_app_type] => utility [patent_app_number] => 18/107891 [patent_app_country] => US [patent_app_date] => 2023-02-09 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 6 [patent_figures_cnt] => 6 [patent_no_of_words] => 3589 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 153 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18107891 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/107891
Electrolytic unit housing with pressure-relief area Feb 8, 2023 Issued
Array ( [id] => 19234495 [patent_doc_number] => 20240191688 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-06-13 [patent_title] => Vertical-Axis Wind Turbine Device [patent_app_type] => utility [patent_app_number] => 18/161916 [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] => 3088 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 36 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18161916 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/161916
Vertical-Axis Wind Turbine Device Jan 30, 2023 Abandoned
Array ( [id] => 19788975 [patent_doc_number] => 20250062654 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-02-20 [patent_title] => Cooling Ring for a Winding Head of an Active Part of a Drive Machine [patent_app_type] => utility [patent_app_number] => 18/723756 [patent_app_country] => US [patent_app_date] => 2023-01-23 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 3397 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -13 [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] => 18723756 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/723756
Cooling Ring for a Winding Head of an Active Part of a Drive Machine Jan 22, 2023 Pending
Array ( [id] => 18380361 [patent_doc_number] => 20230155451 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-05-18 [patent_title] => GENERATOR SYSTEM UTILIZING WEIGHTS OF RECURRENT STATIC LOADS [patent_app_type] => utility [patent_app_number] => 18/097899 [patent_app_country] => US [patent_app_date] => 2023-01-17 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 5474 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [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] => 18097899 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/097899
GENERATOR SYSTEM UTILIZING WEIGHTS OF RECURRENT STATIC LOADS Jan 16, 2023 Abandoned
Array ( [id] => 20241626 [patent_doc_number] => 12421935 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2025-09-23 [patent_title] => Low-wind ride-through of a wind turbine [patent_app_type] => utility [patent_app_number] => 18/835074 [patent_app_country] => US [patent_app_date] => 2023-01-16 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 5 [patent_no_of_words] => 2207 [patent_no_of_claims] => 16 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 235 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18835074 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/835074
Low-wind ride-through of a wind turbine Jan 15, 2023 Issued
Array ( [id] => 18376701 [patent_doc_number] => 20230151788 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-05-18 [patent_title] => PUMPED HYDRO ENERGY STORAGE SYSTEM AND METHOD, INCLUDING FIRE EXTINGUISHING FEATURES [patent_app_type] => utility [patent_app_number] => 18/096127 [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] => 7252 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -19 [patent_words_short_claim] => 168 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18096127 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/096127
Pumped hydro energy storage system and method, including fire extinguishing features Jan 11, 2023 Issued
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