Search

David S. Huang

Examiner (ID: 8701, Phone: (571)270-1798 , Office: P/2631 )

Most Active Art Unit
2631
Art Unit(s)
2611, 2631
Total Applications
954
Issued Applications
816
Pending Applications
60
Abandoned Applications
110

Applications

Application numberTitle of the applicationFiling DateStatus
Array ( [id] => 20478926 [patent_doc_number] => 12527384 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2026-01-20 [patent_title] => Magnetic locking device with hold-open mechanism [patent_app_type] => utility [patent_app_number] => 18/580704 [patent_app_country] => US [patent_app_date] => 2023-09-20 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 80 [patent_figures_cnt] => 142 [patent_no_of_words] => 12996 [patent_no_of_claims] => 19 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 185 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18580704 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/580704
Magnetic locking device with hold-open mechanism Sep 19, 2023 Issued
Array ( [id] => 19751509 [patent_doc_number] => 20250040074 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-01-30 [patent_title] => LOCKING HANDLE FOR SERVER RACK TRAY [patent_app_type] => utility [patent_app_number] => 18/471105 [patent_app_country] => US [patent_app_date] => 2023-09-20 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 6591 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -18 [patent_words_short_claim] => 173 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18471105 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/471105
LOCKING HANDLE FOR SERVER RACK TRAY Sep 19, 2023 Issued
Array ( [id] => 19746340 [patent_doc_number] => 20250034905 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-01-30 [patent_title] => TWIST ON THE HAND TO REPLACE THE LOCK CORE STRUCTURE [patent_app_type] => utility [patent_app_number] => 18/465394 [patent_app_country] => US [patent_app_date] => 2023-09-12 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 1506 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -6 [patent_words_short_claim] => 45 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18465394 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/465394
TWIST ON THE HAND TO REPLACE THE LOCK CORE STRUCTURE Sep 11, 2023 Pending
Array ( [id] => 19778943 [patent_doc_number] => 12227967 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2025-02-18 [patent_title] => Handle catch assemblies [patent_app_type] => utility [patent_app_number] => 18/242270 [patent_app_country] => US [patent_app_date] => 2023-09-05 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 11 [patent_figures_cnt] => 24 [patent_no_of_words] => 10817 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 54 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18242270 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/242270
Handle catch assemblies Sep 4, 2023 Issued
Array ( [id] => 19004497 [patent_doc_number] => 20240068568 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-02-29 [patent_title] => ULTRA-SEAL GASKET FOR JOINING HIGH PURITY FLUID PATHWAYS [patent_app_type] => utility [patent_app_number] => 18/242238 [patent_app_country] => US [patent_app_date] => 2023-09-05 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 9740 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -18 [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] => 18242238 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/242238
Ultra-seal gasket for joining high purity fluid pathways Sep 4, 2023 Issued
Array ( [id] => 19826892 [patent_doc_number] => 12247663 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2025-03-11 [patent_title] => Lip seals and related methods [patent_app_type] => utility [patent_app_number] => 18/461411 [patent_app_country] => US [patent_app_date] => 2023-09-05 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 17 [patent_figures_cnt] => 51 [patent_no_of_words] => 43119 [patent_no_of_claims] => 55 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 219 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18461411 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/461411
Lip seals and related methods Sep 4, 2023 Issued
Array ( [id] => 20302846 [patent_doc_number] => 12448827 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2025-10-21 [patent_title] => Retention assembly and chassis having the same [patent_app_type] => utility [patent_app_number] => 18/230725 [patent_app_country] => US [patent_app_date] => 2023-08-07 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 7 [patent_figures_cnt] => 7 [patent_no_of_words] => 0 [patent_no_of_claims] => 11 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 170 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18230725 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/230725
Retention assembly and chassis having the same Aug 6, 2023 Issued
Array ( [id] => 19266180 [patent_doc_number] => 20240209879 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-06-27 [patent_title] => FIXING DEVICE [patent_app_type] => utility [patent_app_number] => 18/358146 [patent_app_country] => US [patent_app_date] => 2023-07-25 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 4041 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -7 [patent_words_short_claim] => 440 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18358146 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/358146
Fixing device Jul 24, 2023 Issued
Array ( [id] => 19498116 [patent_doc_number] => 20240337134 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-10-10 [patent_title] => CONTROL DEVICE FOR A PUSH BAR LATCH [patent_app_type] => utility [patent_app_number] => 18/355113 [patent_app_country] => US [patent_app_date] => 2023-07-19 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 1087 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -1 [patent_words_short_claim] => 151 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18355113 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/355113
CONTROL DEVICE FOR A PUSH BAR LATCH Jul 18, 2023 Abandoned
Array ( [id] => 18771418 [patent_doc_number] => 20230366239 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-11-16 [patent_title] => MOTORIZED LOCK METHOD AND ASSEMBLY [patent_app_type] => utility [patent_app_number] => 18/223793 [patent_app_country] => US [patent_app_date] => 2023-07-19 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 7096 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 173 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18223793 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/223793
Motorized lock method and assembly Jul 18, 2023 Issued
Array ( [id] => 18940173 [patent_doc_number] => 20240035312 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-02-01 [patent_title] => DRAWER LOCK ASSEMBLIES [patent_app_type] => utility [patent_app_number] => 18/221424 [patent_app_country] => US [patent_app_date] => 2023-07-13 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 5801 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -19 [patent_words_short_claim] => 173 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18221424 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/221424
Drawer lock assemblies Jul 12, 2023 Issued
Array ( [id] => 20272444 [patent_doc_number] => 12442217 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2025-10-14 [patent_title] => Electronic monitoring of the locking status of a utility locking system [patent_app_type] => utility [patent_app_number] => 18/345496 [patent_app_country] => US [patent_app_date] => 2023-06-30 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 5 [patent_figures_cnt] => 5 [patent_no_of_words] => 3759 [patent_no_of_claims] => 15 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 229 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18345496 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/345496
Electronic monitoring of the locking status of a utility locking system Jun 29, 2023 Issued
Array ( [id] => 19268701 [patent_doc_number] => 20240212405 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-06-27 [patent_title] => MEANS OF POWERING SMART LOCK AND SIMILAR SYSTEMS [patent_app_type] => utility [patent_app_number] => 18/342110 [patent_app_country] => US [patent_app_date] => 2023-06-27 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 3227 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -16 [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] => 18342110 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/342110
MEANS OF POWERING SMART LOCK AND SIMILAR SYSTEMS Jun 26, 2023 Pending
Array ( [id] => 18884833 [patent_doc_number] => 20240008202 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-01-04 [patent_title] => AUTOMATIC UNLOCKING SYSTEM FOR IT CABINET [patent_app_type] => utility [patent_app_number] => 18/211367 [patent_app_country] => US [patent_app_date] => 2023-06-19 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 6180 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -31 [patent_words_short_claim] => 54 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18211367 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/211367
AUTOMATIC UNLOCKING SYSTEM FOR IT CABINET Jun 18, 2023 Pending
Array ( [id] => 18940168 [patent_doc_number] => 20240035307 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-02-01 [patent_title] => GEARBOX CLUTCH MECHANISM FOR MOTORIZED LOCK [patent_app_type] => utility [patent_app_number] => 18/204192 [patent_app_country] => US [patent_app_date] => 2023-05-31 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 10705 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -18 [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] => 18204192 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/204192
Gearbox clutch mechanism for motorized lock May 30, 2023 Issued
Array ( [id] => 20336998 [patent_doc_number] => 20250341118 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-11-06 [patent_title] => LATCH MECHANISM [patent_app_type] => utility [patent_app_number] => 18/871065 [patent_app_country] => US [patent_app_date] => 2023-05-31 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 2286 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -49 [patent_words_short_claim] => 111 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18871065 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/871065
LATCH MECHANISM May 30, 2023 Pending
Array ( [id] => 19060830 [patent_doc_number] => 11940049 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2024-03-26 [patent_title] => Lip seals and related methods [patent_app_type] => utility [patent_app_number] => 18/202215 [patent_app_country] => US [patent_app_date] => 2023-05-25 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 14 [patent_figures_cnt] => 43 [patent_no_of_words] => 30893 [patent_no_of_claims] => 30 [patent_no_of_ind_claims] => 4 [patent_words_short_claim] => 165 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18202215 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/202215
Lip seals and related methods May 24, 2023 Issued
Array ( [id] => 18809239 [patent_doc_number] => 20230383574 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-11-30 [patent_title] => LOCKING MECHANISM [patent_app_type] => utility [patent_app_number] => 18/201508 [patent_app_country] => US [patent_app_date] => 2023-05-24 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 4182 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -13 [patent_words_short_claim] => 370 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18201508 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/201508
Locking mechanism May 23, 2023 Issued
Array ( [id] => 19282223 [patent_doc_number] => 20240218697 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-07-04 [patent_title] => DOOR LOCKING DEVICE [patent_app_type] => utility [patent_app_number] => 18/198956 [patent_app_country] => US [patent_app_date] => 2023-05-18 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 2938 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -7 [patent_words_short_claim] => 312 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18198956 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/198956
DOOR LOCKING DEVICE May 17, 2023 Abandoned
Array ( [id] => 18612959 [patent_doc_number] => 20230279695 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-09-07 [patent_title] => LOCK SHIELDING STRUCTURE HAVING FINGERPRINT MODULE AND SMART LOCK [patent_app_type] => utility [patent_app_number] => 18/195344 [patent_app_country] => US [patent_app_date] => 2023-05-09 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 1880 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -8 [patent_words_short_claim] => 106 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18195344 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/195344
Lock shielding structure having fingerprint module and smart lock May 8, 2023 Issued
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