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] => 13676929 [patent_doc_number] => 20160377198 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2016-12-29 [patent_title] => UNDERWATER PIPE ASSEMBLY AND METHOD OF ASSEMBLING UNDERWATER PIPES [patent_app_type] => utility [patent_app_number] => 15/182406 [patent_app_country] => US [patent_app_date] => 2016-06-14 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 3441 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -2 [patent_words_short_claim] => 579 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 15182406 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/182406
Underwater pipe assembly and method of assembling underwater pipes Jun 13, 2016 Issued
Array ( [id] => 13676931 [patent_doc_number] => 20160377199 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2016-12-29 [patent_title] => UNDERWATER PIPE ASSEMBLY AND METHOD FOR ASSEMBLING UNDERWATER PIPES [patent_app_type] => utility [patent_app_number] => 15/182418 [patent_app_country] => US [patent_app_date] => 2016-06-14 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 2282 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -1 [patent_words_short_claim] => 259 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 15182418 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/182418
UNDERWATER PIPE ASSEMBLY AND METHOD FOR ASSEMBLING UNDERWATER PIPES Jun 13, 2016 Abandoned
Array ( [id] => 11082490 [patent_doc_number] => 20160279455 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2016-09-29 [patent_title] => 'Flexible Assembly For Sprinklers' [patent_app_type] => utility [patent_app_number] => 15/176590 [patent_app_country] => US [patent_app_date] => 2016-06-08 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 8 [patent_figures_cnt] => 8 [patent_no_of_words] => 5728 [patent_no_of_claims] => 28 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 0 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 15176590 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/176590
Flexible assembly for sprinklers Jun 7, 2016 Issued
Array ( [id] => 11271494 [patent_doc_number] => 20160334041 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2016-11-17 [patent_title] => 'CAM AND GROOVE COUPLING WITH LOCKING WIRE MECHANISM' [patent_app_type] => utility [patent_app_number] => 15/154569 [patent_app_country] => US [patent_app_date] => 2016-05-13 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 9 [patent_figures_cnt] => 9 [patent_no_of_words] => 2497 [patent_no_of_claims] => 11 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 0 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 15154569 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/154569
Cam and groove coupling with locking wire mechanism May 12, 2016 Issued
Array ( [id] => 14184145 [patent_doc_number] => 20190111777 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2019-04-18 [patent_title] => FUEL FILLING LINE - FUEL TANK QUICK CONNECTION [patent_app_type] => utility [patent_app_number] => 16/093850 [patent_app_country] => US [patent_app_date] => 2016-05-02 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 3388 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -12 [patent_words_short_claim] => 134 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16093850 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/093850
FUEL FILLING LINE - FUEL TANK QUICK CONNECTION May 1, 2016 Abandoned
Array ( [id] => 14104271 [patent_doc_number] => 20190093811 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2019-03-28 [patent_title] => Connector Fitting For A Fluid Hose In A Vehicle And Connector System [patent_app_type] => utility [patent_app_number] => 16/085879 [patent_app_country] => US [patent_app_date] => 2016-03-17 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 3438 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -12 [patent_words_short_claim] => 196 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16085879 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/085879
Connector fitting for a fluid hose in a vehicle and connector system Mar 16, 2016 Issued
Array ( [id] => 17308006 [patent_doc_number] => 11209104 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2021-12-28 [patent_title] => Fastening system for a pipe passing through a panel of an air handling unit, and air handling unit comprising such a system [patent_app_type] => utility [patent_app_number] => 16/080873 [patent_app_country] => US [patent_app_date] => 2016-03-02 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 7 [patent_figures_cnt] => 7 [patent_no_of_words] => 2110 [patent_no_of_claims] => 12 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 195 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16080873 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/080873
Fastening system for a pipe passing through a panel of an air handling unit, and air handling unit comprising such a system Mar 1, 2016 Issued
Array ( [id] => 11192253 [patent_doc_number] => 09423061 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2016-08-23 [patent_title] => 'Locking quick connect spray shield with visual indicator' [patent_app_type] => utility [patent_app_number] => 15/054429 [patent_app_country] => US [patent_app_date] => 2016-02-26 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 4 [patent_no_of_words] => 3610 [patent_no_of_claims] => 1 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 489 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 15054429 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/054429
Locking quick connect spray shield with visual indicator Feb 25, 2016 Issued
Array ( [id] => 12179598 [patent_doc_number] => 20180038535 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2018-02-08 [patent_title] => 'PLUG-IN CONNECTOR ASSEMBLY FOR THE CONNECTION OF LINES' [patent_app_type] => utility [patent_app_number] => 15/555124 [patent_app_country] => US [patent_app_date] => 2016-02-26 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 7 [patent_figures_cnt] => 7 [patent_no_of_words] => 4480 [patent_no_of_claims] => 10 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 0 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 15555124 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/555124
Plug-in connector assembly for the connection of lines Feb 25, 2016 Issued
Array ( [id] => 11937423 [patent_doc_number] => 20170241573 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2017-08-24 [patent_title] => 'Hose Bib System' [patent_app_type] => utility [patent_app_number] => 15/049128 [patent_app_country] => US [patent_app_date] => 2016-02-21 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 5 [patent_figures_cnt] => 5 [patent_no_of_words] => 1394 [patent_no_of_claims] => 7 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 0 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 15049128 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/049128
Hose Bib System Feb 20, 2016 Abandoned
Array ( [id] => 11101829 [patent_doc_number] => 20160298799 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2016-10-13 [patent_title] => 'HOSE QUICK COUPLING' [patent_app_type] => utility [patent_app_number] => 15/045249 [patent_app_country] => US [patent_app_date] => 2016-02-17 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 13 [patent_figures_cnt] => 13 [patent_no_of_words] => 3056 [patent_no_of_claims] => 12 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 0 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 15045249 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/045249
Hose quick coupling Feb 16, 2016 Issued
Array ( [id] => 12010283 [patent_doc_number] => 09803594 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2017-10-31 [patent_title] => 'Fuel supply device' [patent_app_type] => utility [patent_app_number] => 15/019079 [patent_app_country] => US [patent_app_date] => 2016-02-09 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 2 [patent_figures_cnt] => 5 [patent_no_of_words] => 5138 [patent_no_of_claims] => 8 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 142 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 15019079 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/019079
Fuel supply device Feb 8, 2016 Issued
Array ( [id] => 17045656 [patent_doc_number] => 11098827 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2021-08-24 [patent_title] => Tubular structure and manufacturing method therefor [patent_app_type] => utility [patent_app_number] => 15/771667 [patent_app_country] => US [patent_app_date] => 2016-01-29 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 6 [patent_figures_cnt] => 14 [patent_no_of_words] => 6531 [patent_no_of_claims] => 4 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 244 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 15771667 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/771667
Tubular structure and manufacturing method therefor Jan 28, 2016 Issued
Array ( [id] => 12152478 [patent_doc_number] => 20180023742 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2018-01-25 [patent_title] => 'Connectors For Sleeved Pipe Couplings' [patent_app_type] => utility [patent_app_number] => 15/546564 [patent_app_country] => US [patent_app_date] => 2016-01-28 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 4 [patent_no_of_words] => 2409 [patent_no_of_claims] => 17 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 0 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 15546564 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/546564
Connectors For Sleeved Pipe Couplings Jan 27, 2016 Abandoned
Array ( [id] => 11994943 [patent_doc_number] => 20170299097 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2017-10-19 [patent_title] => 'STRUCTURE OF RESIN-MADE PIPE JOINT' [patent_app_type] => utility [patent_app_number] => 15/509897 [patent_app_country] => US [patent_app_date] => 2016-01-20 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 8 [patent_figures_cnt] => 8 [patent_no_of_words] => 6272 [patent_no_of_claims] => 4 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 0 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 15509897 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/509897
Structure of resin-made pipe joint Jan 19, 2016 Issued
Array ( [id] => 10780560 [patent_doc_number] => 20160126716 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2016-05-05 [patent_title] => 'Integrated Piping Conduit with Adaptor Device and Method' [patent_app_type] => utility [patent_app_number] => 14/994527 [patent_app_country] => US [patent_app_date] => 2016-01-13 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 17 [patent_figures_cnt] => 17 [patent_no_of_words] => 8179 [patent_no_of_claims] => 17 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 0 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 14994527 [rel_patent_id] =>[rel_patent_doc_number] =>)
14/994527
Integrated piping conduit with adaptor device and method Jan 12, 2016 Issued
Array ( [id] => 13715525 [patent_doc_number] => 20170368717 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2017-12-28 [patent_title] => CPVC PIPE FITTING HAVING IMPROVED RESISTANCE TO ENVIRONMENTAL STRESS CRACKING [patent_app_type] => utility [patent_app_number] => 15/536792 [patent_app_country] => US [patent_app_date] => 2015-12-17 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 6454 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -10 [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] => 15536792 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/536792
CPVC pipe fitting having improved resistance to environmental stress cracking Dec 16, 2015 Issued
Array ( [id] => 13718415 [patent_doc_number] => 20170370162 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2017-12-28 [patent_title] => TUBULAR COMPONENT WITH A HELICAL ABUTMENT [patent_app_type] => utility [patent_app_number] => 15/524655 [patent_app_country] => US [patent_app_date] => 2015-12-08 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 7107 [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] => 15524655 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/524655
TUBULAR COMPONENT WITH A HELICAL ABUTMENT Dec 7, 2015 Abandoned
Array ( [id] => 12031395 [patent_doc_number] => 20170321494 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2017-11-09 [patent_title] => 'A CONNECTION AND PROTECTIVE RING THEREFOR' [patent_app_type] => utility [patent_app_number] => 15/531333 [patent_app_country] => US [patent_app_date] => 2015-12-02 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 5 [patent_figures_cnt] => 5 [patent_no_of_words] => 5907 [patent_no_of_claims] => 18 [patent_no_of_ind_claims] => 4 [patent_words_short_claim] => 0 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 15531333 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/531333
Connection and protective ring therefor Dec 1, 2015 Issued
Array ( [id] => 15308557 [patent_doc_number] => 10518968 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2019-12-31 [patent_title] => Block connector for septic tank and water treatment facility, and prefabricated block using same [patent_app_type] => utility [patent_app_number] => 15/543161 [patent_app_country] => US [patent_app_date] => 2015-11-19 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 5 [patent_no_of_words] => 3862 [patent_no_of_claims] => 7 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 117 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 15543161 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/543161
Block connector for septic tank and water treatment facility, and prefabricated block using same Nov 18, 2015 Issued
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