Search

Hung K Du

Examiner (ID: 6322, Phone: (571)270-1810 , Office: P/2645 )

Most Active Art Unit
2645
Art Unit(s)
2617, 2647, 2645
Total Applications
327
Issued Applications
159
Pending Applications
0
Abandoned Applications
168

Applications

Application numberTitle of the applicationFiling DateStatus
Array ( [id] => 18710097 [patent_doc_number] => 20230332721 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-10-19 [patent_title] => GASKET BRIDGE ASSEMBLY [patent_app_type] => utility [patent_app_number] => 18/211051 [patent_app_country] => US [patent_app_date] => 2023-06-16 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 7552 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -14 [patent_words_short_claim] => 125 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18211051 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/211051
GASKET BRIDGE ASSEMBLY Jun 15, 2023 Pending
Array ( [id] => 19181733 [patent_doc_number] => 11988317 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2024-05-21 [patent_title] => Adaptive sealing devices for pipeline porous leakage [patent_app_type] => utility [patent_app_number] => 18/173751 [patent_app_country] => US [patent_app_date] => 2023-02-23 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 8 [patent_figures_cnt] => 8 [patent_no_of_words] => 11600 [patent_no_of_claims] => 7 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 473 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18173751 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/173751
Adaptive sealing devices for pipeline porous leakage Feb 22, 2023 Issued
Array ( [id] => 18691210 [patent_doc_number] => 20230321422 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-10-12 [patent_title] => LOCKABLE QUICK COUPLING [patent_app_type] => utility [patent_app_number] => 18/105273 [patent_app_country] => US [patent_app_date] => 2023-02-03 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 3098 [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] => 18105273 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/105273
Lockable quick coupling Feb 2, 2023 Issued
Array ( [id] => 18437063 [patent_doc_number] => 20230184357 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-06-15 [patent_title] => CONNECTION ELEMENT FOR AN EXHAUST SYSTEM OF AN INTERNAL COMBUSTION ENGINE [patent_app_type] => utility [patent_app_number] => 18/065688 [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] => 3321 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -12 [patent_words_short_claim] => 219 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18065688 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/065688
CONNECTION ELEMENT FOR AN EXHAUST SYSTEM OF AN INTERNAL COMBUSTION ENGINE Dec 13, 2022 Pending
Array ( [id] => 18421157 [patent_doc_number] => 20230175620 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-06-08 [patent_title] => LOCKABLE SWIVEL FITTING ASSEMBLY [patent_app_type] => utility [patent_app_number] => 18/056850 [patent_app_country] => US [patent_app_date] => 2022-11-18 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 6055 [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] => 18056850 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/056850
Lockable swivel fitting assembly Nov 17, 2022 Issued
Array ( [id] => 18282555 [patent_doc_number] => 20230098027 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-03-30 [patent_title] => SIDE WALL SEAL FOR PIPING [patent_app_type] => utility [patent_app_number] => 17/954952 [patent_app_country] => US [patent_app_date] => 2022-09-28 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 2423 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 85 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17954952 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/954952
SIDE WALL SEAL FOR PIPING Sep 27, 2022 Pending
Array ( [id] => 18498233 [patent_doc_number] => 20230220937 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-07-13 [patent_title] => SPUD WELD CONNECTION AND METHOD OF MAKING THE SAME [patent_app_type] => utility [patent_app_number] => 17/899254 [patent_app_country] => US [patent_app_date] => 2022-08-30 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 2820 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -5 [patent_words_short_claim] => 86 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17899254 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/899254
SPUD WELD CONNECTION AND METHOD OF MAKING THE SAME Aug 29, 2022 Abandoned
Array ( [id] => 18903573 [patent_doc_number] => 20240019058 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-01-18 [patent_title] => Cryogenic System Connector [patent_app_type] => utility [patent_app_number] => 17/866614 [patent_app_country] => US [patent_app_date] => 2022-07-18 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 5858 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -12 [patent_words_short_claim] => 119 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17866614 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/866614
Cryogenic System Connector Jul 17, 2022 Pending
Array ( [id] => 18209172 [patent_doc_number] => 20230055432 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-02-23 [patent_title] => QUICK CONNECTOR WITH VERIFIER [patent_app_type] => utility [patent_app_number] => 17/867374 [patent_app_country] => US [patent_app_date] => 2022-07-18 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 4942 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -18 [patent_words_short_claim] => 181 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17867374 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/867374
QUICK CONNECTOR WITH VERIFIER Jul 17, 2022 Pending
Array ( [id] => 17990940 [patent_doc_number] => 20220356977 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2022-11-10 [patent_title] => EXPANSION JOINTS FOR A TUBULAR TRANSPORTATION SYSTEM [patent_app_type] => utility [patent_app_number] => 17/864657 [patent_app_country] => US [patent_app_date] => 2022-07-14 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 11169 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -14 [patent_words_short_claim] => 138 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17864657 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/864657
EXPANSION JOINTS FOR A TUBULAR TRANSPORTATION SYSTEM Jul 13, 2022 Abandoned
Array ( [id] => 17960941 [patent_doc_number] => 20220341521 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2022-10-27 [patent_title] => COUPLING DEVICE FOR CONNECTING ELONGATED HOLLOW BODIES IN AN ASSEMBLY SYSTEM [patent_app_type] => utility [patent_app_number] => 17/859334 [patent_app_country] => US [patent_app_date] => 2022-07-07 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 9278 [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] => 17859334 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/859334
COUPLING DEVICE FOR CONNECTING ELONGATED HOLLOW BODIES IN AN ASSEMBLY SYSTEM Jul 6, 2022 Abandoned
Array ( [id] => 18896102 [patent_doc_number] => 20240011587 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-01-11 [patent_title] => SWIVEL ASSEMBLY FORMED OF A CORROSION-RESISTANT MATERIAL [patent_app_type] => utility [patent_app_number] => 17/858282 [patent_app_country] => US [patent_app_date] => 2022-07-06 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 3911 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -13 [patent_words_short_claim] => 110 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17858282 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/858282
SWIVEL ASSEMBLY FORMED OF A CORROSION-RESISTANT MATERIAL Jul 5, 2022 Pending
Array ( [id] => 18078349 [patent_doc_number] => 20220403961 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2022-12-22 [patent_title] => CONDUIT COUPLER FOR COUPLING STUB END CONDUITS [patent_app_type] => utility [patent_app_number] => 17/806087 [patent_app_country] => US [patent_app_date] => 2022-06-09 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 3816 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -22 [patent_words_short_claim] => 238 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17806087 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/806087
CONDUIT COUPLER FOR COUPLING STUB END CONDUITS Jun 8, 2022 Pending
Array ( [id] => 19537398 [patent_doc_number] => 12129943 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2024-10-29 [patent_title] => Nipple assembly [patent_app_type] => utility [patent_app_number] => 17/832206 [patent_app_country] => US [patent_app_date] => 2022-06-03 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 6 [patent_figures_cnt] => 7 [patent_no_of_words] => 4805 [patent_no_of_claims] => 13 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 325 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17832206 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/832206
Nipple assembly Jun 2, 2022 Issued
Array ( [id] => 18818389 [patent_doc_number] => 20230392729 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-12-07 [patent_title] => End Fitting for a Pipe and Associated Methods [patent_app_type] => utility [patent_app_number] => 17/829803 [patent_app_country] => US [patent_app_date] => 2022-06-01 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 6481 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -19 [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] => 17829803 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/829803
End Fitting for a Pipe and Associated Methods May 31, 2022 Pending
Array ( [id] => 18086281 [patent_doc_number] => 11536408 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2022-12-27 [patent_title] => Drain-pipe interface device [patent_app_type] => utility [patent_app_number] => 17/751552 [patent_app_country] => US [patent_app_date] => 2022-05-23 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 22 [patent_figures_cnt] => 32 [patent_no_of_words] => 10752 [patent_no_of_claims] => 19 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 268 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17751552 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/751552
Drain-pipe interface device May 22, 2022 Issued
Array ( [id] => 17983626 [patent_doc_number] => 20220349662 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2022-11-03 [patent_title] => CONNECTOR [patent_app_type] => utility [patent_app_number] => 17/660298 [patent_app_country] => US [patent_app_date] => 2022-04-22 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 2607 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -7 [patent_words_short_claim] => 102 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17660298 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/660298
CONNECTOR Apr 21, 2022 Pending
Array ( [id] => 18693593 [patent_doc_number] => 20230323992 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-10-12 [patent_title] => CONDUIT COUPLING WITH INDICATOR OF BEND PLANE [patent_app_type] => utility [patent_app_number] => 17/658915 [patent_app_country] => US [patent_app_date] => 2022-04-12 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 4637 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 91 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17658915 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/658915
CONDUIT COUPLING WITH INDICATOR OF BEND PLANE Apr 11, 2022 Pending
Array ( [id] => 17750481 [patent_doc_number] => 20220228686 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2022-07-21 [patent_title] => Compression Collars for Coupling a Tube to a Tube Fitting [patent_app_type] => utility [patent_app_number] => 17/712501 [patent_app_country] => US [patent_app_date] => 2022-04-04 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 16312 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 237 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17712501 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/712501
Compression collars for coupling a tube to a tube fitting Apr 3, 2022 Issued
Array ( [id] => 17912126 [patent_doc_number] => 20220314521 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2022-10-06 [patent_title] => ARRANGEMENT FOR THE TRANSPORT OF MEDIA [patent_app_type] => utility [patent_app_number] => 17/702058 [patent_app_country] => US [patent_app_date] => 2022-03-23 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 2961 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -14 [patent_words_short_claim] => 56 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17702058 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/702058
ARRANGEMENT FOR THE TRANSPORT OF MEDIA Mar 22, 2022 Pending
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