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] => 15470233 [patent_doc_number] => 10550983 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2020-02-04 [patent_title] => Double cam levers and safety lock for cam lock fitting [patent_app_type] => utility [patent_app_number] => 16/383582 [patent_app_country] => US [patent_app_date] => 2019-04-13 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 6 [patent_figures_cnt] => 30 [patent_no_of_words] => 8725 [patent_no_of_claims] => 13 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 337 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16383582 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/383582
Double cam levers and safety lock for cam lock fitting Apr 12, 2019 Issued
Array ( [id] => 15149627 [patent_doc_number] => 20190353291 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2019-11-21 [patent_title] => COUPLINGS [patent_app_type] => utility [patent_app_number] => 16/382615 [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] => 11716 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -19 [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] => 16382615 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/382615
Couplings Apr 11, 2019 Issued
Array ( [id] => 16941926 [patent_doc_number] => 11054155 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2021-07-06 [patent_title] => Resin-coated aluminum pipe connector for air conditioner outdoor unit [patent_app_type] => utility [patent_app_number] => 17/050066 [patent_app_country] => US [patent_app_date] => 2019-04-11 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 4 [patent_no_of_words] => 4044 [patent_no_of_claims] => 1 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 458 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17050066 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/050066
Resin-coated aluminum pipe connector for air conditioner outdoor unit Apr 10, 2019 Issued
Array ( [id] => 19091691 [patent_doc_number] => 11953132 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2024-04-09 [patent_title] => Hose clamp [patent_app_type] => utility [patent_app_number] => 17/601969 [patent_app_country] => US [patent_app_date] => 2019-04-11 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 7 [patent_figures_cnt] => 9 [patent_no_of_words] => 4228 [patent_no_of_claims] => 10 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 237 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17601969 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/601969
Hose clamp Apr 10, 2019 Issued
Array ( [id] => 15397219 [patent_doc_number] => 10539261 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2020-01-21 [patent_title] => Locking quick connect spray shield with visual indicator [patent_app_type] => utility [patent_app_number] => 16/380421 [patent_app_country] => US [patent_app_date] => 2019-04-10 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 4 [patent_no_of_words] => 3595 [patent_no_of_claims] => 4 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 109 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16380421 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/380421
Locking quick connect spray shield with visual indicator Apr 9, 2019 Issued
Array ( [id] => 17976229 [patent_doc_number] => 11493083 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2022-11-08 [patent_title] => Greaseless swivel and bearing device [patent_app_type] => utility [patent_app_number] => 16/377651 [patent_app_country] => US [patent_app_date] => 2019-04-08 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 8 [patent_figures_cnt] => 10 [patent_no_of_words] => 4448 [patent_no_of_claims] => 19 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 157 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16377651 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/377651
Greaseless swivel and bearing device Apr 7, 2019 Issued
Array ( [id] => 16269763 [patent_doc_number] => 20200271250 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2020-08-27 [patent_title] => FUEL SYSTEM INCLUDING REINFORCED FUEL CONNECTOR WITH RETAINING RINGS [patent_app_type] => utility [patent_app_number] => 16/287441 [patent_app_country] => US [patent_app_date] => 2019-02-27 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 2064 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -16 [patent_words_short_claim] => 67 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16287441 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/287441
Fuel system including reinforced fuel connector with retaining rings Feb 26, 2019 Issued
Array ( [id] => 15103879 [patent_doc_number] => 10473249 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2019-11-12 [patent_title] => Double cam levers and safety lock for cam lock fitting [patent_app_type] => utility [patent_app_number] => 16/286014 [patent_app_country] => US [patent_app_date] => 2019-02-26 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 11 [patent_figures_cnt] => 56 [patent_no_of_words] => 11963 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 4 [patent_words_short_claim] => 320 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16286014 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/286014
Double cam levers and safety lock for cam lock fitting Feb 25, 2019 Issued
Array ( [id] => 16269768 [patent_doc_number] => 20200271255 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2020-08-27 [patent_title] => PIPE COUPLING WITH PROTECTION AGAINST FASTENER SHEARING [patent_app_type] => utility [patent_app_number] => 16/285281 [patent_app_country] => US [patent_app_date] => 2019-02-26 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 1244 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -4 [patent_words_short_claim] => 81 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16285281 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/285281
Pipe coupling with protection against fastener shearing Feb 25, 2019 Issued
Array ( [id] => 15103877 [patent_doc_number] => 10473248 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2019-11-12 [patent_title] => Double cam levers and safety lock for cam lock fitting [patent_app_type] => utility [patent_app_number] => 16/284571 [patent_app_country] => US [patent_app_date] => 2019-02-25 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 9 [patent_figures_cnt] => 46 [patent_no_of_words] => 10841 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 4 [patent_words_short_claim] => 289 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16284571 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/284571
Double cam levers and safety lock for cam lock fitting Feb 24, 2019 Issued
Array ( [id] => 16893963 [patent_doc_number] => 11035506 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2021-06-15 [patent_title] => Coupling apparatus for joining poly-pipe [patent_app_type] => utility [patent_app_number] => 16/279940 [patent_app_country] => US [patent_app_date] => 2019-02-19 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 7 [patent_figures_cnt] => 12 [patent_no_of_words] => 3315 [patent_no_of_claims] => 4 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 174 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16279940 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/279940
Coupling apparatus for joining poly-pipe Feb 18, 2019 Issued
Array ( [id] => 19491968 [patent_doc_number] => 12110666 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2024-10-08 [patent_title] => Adjustable anti-freeze faucet [patent_app_type] => utility [patent_app_number] => 16/968969 [patent_app_country] => US [patent_app_date] => 2019-02-19 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 11 [patent_figures_cnt] => 13 [patent_no_of_words] => 8253 [patent_no_of_claims] => 21 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 553 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16968969 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/968969
Adjustable anti-freeze faucet Feb 18, 2019 Issued
Array ( [id] => 14776305 [patent_doc_number] => 20190263050 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2019-08-29 [patent_title] => METHOD FOR PRODUCING A TUBULAR BODY WITH REDUCED INTERNAL STRESS BY USING 3D PRINTING, AND A TUBULAR BODY WITH REDUCED INTERNAL STRESS [patent_app_type] => utility [patent_app_number] => 16/275010 [patent_app_country] => US [patent_app_date] => 2019-02-13 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 3685 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -10 [patent_words_short_claim] => 141 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16275010 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/275010
Method for producing a tubular body with reduced internal stress by using 3D printing, and a tubular body with reduced internal stress Feb 12, 2019 Issued
Array ( [id] => 14344413 [patent_doc_number] => 20190154179 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2019-05-23 [patent_title] => Duct Cleaning Access Door [patent_app_type] => utility [patent_app_number] => 16/256622 [patent_app_country] => US [patent_app_date] => 2019-01-24 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 6816 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -12 [patent_words_short_claim] => 89 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16256622 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/256622
Duct cleaning access door Jan 23, 2019 Issued
Array ( [id] => 16453570 [patent_doc_number] => 20200362996 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2020-11-19 [patent_title] => AN ASSEMBLY OF AN END-FITTING AND AN UNBONDED FLEXIBLE PIPE [patent_app_type] => utility [patent_app_number] => 16/960614 [patent_app_country] => US [patent_app_date] => 2019-01-10 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 5356 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 247 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16960614 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/960614
Assembly of an end-fitting and an unbonded flexible pipe Jan 9, 2019 Issued
Array ( [id] => 18605479 [patent_doc_number] => 11746936 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2023-09-05 [patent_title] => Threaded joint for coupling two concentric tubes to one tube [patent_app_type] => utility [patent_app_number] => 16/481129 [patent_app_country] => US [patent_app_date] => 2018-12-28 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 5 [patent_figures_cnt] => 5 [patent_no_of_words] => 4455 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 129 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16481129 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/481129
Threaded joint for coupling two concentric tubes to one tube Dec 27, 2018 Issued
Array ( [id] => 16405583 [patent_doc_number] => 10814121 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2020-10-27 [patent_title] => Lockable quick coupling [patent_app_type] => utility [patent_app_number] => 16/227821 [patent_app_country] => US [patent_app_date] => 2018-12-20 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 5 [patent_no_of_words] => 3040 [patent_no_of_claims] => 8 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 150 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16227821 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/227821
Lockable quick coupling Dec 19, 2018 Issued
Array ( [id] => 18445106 [patent_doc_number] => 11680667 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2023-06-20 [patent_title] => Ball joint [patent_app_type] => utility [patent_app_number] => 16/958846 [patent_app_country] => US [patent_app_date] => 2018-12-18 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 2 [patent_figures_cnt] => 4 [patent_no_of_words] => 2599 [patent_no_of_claims] => 9 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 407 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16958846 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/958846
Ball joint Dec 17, 2018 Issued
Array ( [id] => 17468303 [patent_doc_number] => 11274778 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2022-03-15 [patent_title] => Couplings with engagement monitor [patent_app_type] => utility [patent_app_number] => 16/217824 [patent_app_country] => US [patent_app_date] => 2018-12-12 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 7 [patent_figures_cnt] => 12 [patent_no_of_words] => 4032 [patent_no_of_claims] => 9 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 186 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16217824 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/217824
Couplings with engagement monitor Dec 11, 2018 Issued
Array ( [id] => 17344572 [patent_doc_number] => 20220010903 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2022-01-13 [patent_title] => CONNECTOR [patent_app_type] => utility [patent_app_number] => 17/295923 [patent_app_country] => US [patent_app_date] => 2018-11-23 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 746 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -4 [patent_words_short_claim] => 75 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17295923 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/295923
Connector Nov 22, 2018 Issued
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