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] => 14915343 [patent_doc_number] => 10428983 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2019-10-01 [patent_title] => Exhaust collar and method for flexibly attaching an exhaust funnel for an exhaust hood to a vent pipe and exhaust funnel device [patent_app_type] => utility [patent_app_number] => 15/470941 [patent_app_country] => US [patent_app_date] => 2017-03-28 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 10 [patent_figures_cnt] => 11 [patent_no_of_words] => 3231 [patent_no_of_claims] => 10 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 98 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 15470941 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/470941
Exhaust collar and method for flexibly attaching an exhaust funnel for an exhaust hood to a vent pipe and exhaust funnel device Mar 27, 2017 Issued
Array ( [id] => 15509483 [patent_doc_number] => 10561307 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2020-02-18 [patent_title] => Fluid connector for endoscope reprocessing system [patent_app_type] => utility [patent_app_number] => 15/456042 [patent_app_country] => US [patent_app_date] => 2017-03-10 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 10 [patent_figures_cnt] => 13 [patent_no_of_words] => 6742 [patent_no_of_claims] => 17 [patent_no_of_ind_claims] => 4 [patent_words_short_claim] => 114 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 15456042 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/456042
Fluid connector for endoscope reprocessing system Mar 9, 2017 Issued
Array ( [id] => 17816206 [patent_doc_number] => 11421809 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2022-08-23 [patent_title] => Expansion joints for a tubular transportation system [patent_app_type] => utility [patent_app_number] => 15/452107 [patent_app_country] => US [patent_app_date] => 2017-03-07 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 21 [patent_figures_cnt] => 26 [patent_no_of_words] => 11157 [patent_no_of_claims] => 11 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 132 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 15452107 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/452107
Expansion joints for a tubular transportation system Mar 6, 2017 Issued
Array ( [id] => 17728494 [patent_doc_number] => 11384875 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2022-07-12 [patent_title] => Pipe joint, separation prevention member, and method of connecting pipes [patent_app_type] => utility [patent_app_number] => 16/088482 [patent_app_country] => US [patent_app_date] => 2017-03-06 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 22 [patent_figures_cnt] => 27 [patent_no_of_words] => 14353 [patent_no_of_claims] => 14 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 295 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16088482 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/088482
Pipe joint, separation prevention member, and method of connecting pipes Mar 5, 2017 Issued
Array ( [id] => 13401601 [patent_doc_number] => 20180252343 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2018-09-06 [patent_title] => TORQUE SHOULDER OF A PREMIUM CONNECTION [patent_app_type] => utility [patent_app_number] => 15/449350 [patent_app_country] => US [patent_app_date] => 2017-03-03 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 5473 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -8 [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] => 15449350 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/449350
TORQUE SHOULDER OF A PREMIUM CONNECTION Mar 2, 2017 Abandoned
Array ( [id] => 14568693 [patent_doc_number] => 20190211953 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2019-07-11 [patent_title] => Profiled Clamp [patent_app_type] => utility [patent_app_number] => 16/082206 [patent_app_country] => US [patent_app_date] => 2017-03-02 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 2920 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -7 [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] => 16082206 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/082206
Profiled clamp Mar 1, 2017 Issued
Array ( [id] => 16415442 [patent_doc_number] => 10823323 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2020-11-03 [patent_title] => Fluid connector having a deformable tab and plug/connector assembly [patent_app_type] => utility [patent_app_number] => 15/448168 [patent_app_country] => US [patent_app_date] => 2017-03-02 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 16 [patent_figures_cnt] => 20 [patent_no_of_words] => 4510 [patent_no_of_claims] => 24 [patent_no_of_ind_claims] => 4 [patent_words_short_claim] => 85 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 15448168 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/448168
Fluid connector having a deformable tab and plug/connector assembly Mar 1, 2017 Issued
Array ( [id] => 13387783 [patent_doc_number] => 20180245433 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2018-08-30 [patent_title] => TOOL COUPLER WITH ROTATING COUPLING METHOD FOR TOP DRIVE [patent_app_type] => utility [patent_app_number] => 15/445758 [patent_app_country] => US [patent_app_date] => 2017-02-28 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 8776 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -21 [patent_words_short_claim] => 59 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 15445758 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/445758
Tool coupler with rotating coupling method for top drive Feb 27, 2017 Issued
Array ( [id] => 11956987 [patent_doc_number] => 20170261137 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2017-09-14 [patent_title] => 'COMPONENT RETAINING STRUCTURE FOR CONDUIT FITTING' [patent_app_type] => utility [patent_app_number] => 15/441694 [patent_app_country] => US [patent_app_date] => 2017-02-24 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 39 [patent_figures_cnt] => 39 [patent_no_of_words] => 22457 [patent_no_of_claims] => 31 [patent_no_of_ind_claims] => 9 [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] => 15441694 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/441694
COMPONENT RETAINING STRUCTURE FOR CONDUIT FITTING Feb 23, 2017 Abandoned
Array ( [id] => 17378847 [patent_doc_number] => 11236850 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2022-02-01 [patent_title] => Clamping device [patent_app_type] => utility [patent_app_number] => 16/078516 [patent_app_country] => US [patent_app_date] => 2017-02-23 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 2 [patent_figures_cnt] => 7 [patent_no_of_words] => 2297 [patent_no_of_claims] => 8 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 255 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16078516 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/078516
Clamping device Feb 22, 2017 Issued
Array ( [id] => 14147077 [patent_doc_number] => 10253907 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2019-04-09 [patent_title] => Penetrating fixture and fiberglass sump [patent_app_type] => utility [patent_app_number] => 15/576478 [patent_app_country] => US [patent_app_date] => 2017-02-16 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 4 [patent_no_of_words] => 3693 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 260 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 15576478 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/576478
Penetrating fixture and fiberglass sump Feb 15, 2017 Issued
Array ( [id] => 11664258 [patent_doc_number] => 20170152977 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2017-06-01 [patent_title] => 'SEPARATOR DEVICE' [patent_app_type] => utility [patent_app_number] => 15/432035 [patent_app_country] => US [patent_app_date] => 2017-02-14 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 10 [patent_figures_cnt] => 10 [patent_no_of_words] => 7107 [patent_no_of_claims] => 20 [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] => 15432035 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/432035
Separator device Feb 13, 2017 Issued
Array ( [id] => 14686771 [patent_doc_number] => 20190242500 [patent_country] => US [patent_kind] => A9 [patent_issue_date] => 2019-08-08 [patent_title] => DOUBLE SKINNED PIPE ASSEMBLY [patent_app_type] => utility [patent_app_number] => 15/430763 [patent_app_country] => US [patent_app_date] => 2017-02-13 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 2081 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -13 [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] => 15430763 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/430763
Double skinned pipe assembly Feb 12, 2017 Issued
Array ( [id] => 14686771 [patent_doc_number] => 20190242500 [patent_country] => US [patent_kind] => A9 [patent_issue_date] => 2019-08-08 [patent_title] => DOUBLE SKINNED PIPE ASSEMBLY [patent_app_type] => utility [patent_app_number] => 15/430763 [patent_app_country] => US [patent_app_date] => 2017-02-13 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 2081 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -13 [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] => 15430763 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/430763
Double skinned pipe assembly Feb 12, 2017 Issued
Array ( [id] => 11628330 [patent_doc_number] => 20170138519 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2017-05-18 [patent_title] => 'MULTI-PLATE QUICK DISCONNECT FITTING' [patent_app_type] => utility [patent_app_number] => 15/420762 [patent_app_country] => US [patent_app_date] => 2017-01-31 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 4 [patent_no_of_words] => 3137 [patent_no_of_claims] => 20 [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] => 15420762 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/420762
MULTI-PLATE QUICK DISCONNECT FITTING Jan 30, 2017 Abandoned
Array ( [id] => 11837428 [patent_doc_number] => 20170219147 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2017-08-03 [patent_title] => 'Method and Apparatus for Disconnection of Hoses and Other Conduits' [patent_app_type] => utility [patent_app_number] => 15/417829 [patent_app_country] => US [patent_app_date] => 2017-01-27 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 10 [patent_figures_cnt] => 10 [patent_no_of_words] => 5285 [patent_no_of_claims] => 1 [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] => 15417829 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/417829
Method and Apparatus for Disconnection of Hoses and Other Conduits Jan 26, 2017 Abandoned
Array ( [id] => 16697529 [patent_doc_number] => 10948116 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2021-03-16 [patent_title] => Coupling body for a plug connection of pipelines, in particular plastic pipelines [patent_app_type] => utility [patent_app_number] => 16/073583 [patent_app_country] => US [patent_app_date] => 2017-01-26 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 7 [patent_figures_cnt] => 8 [patent_no_of_words] => 4493 [patent_no_of_claims] => 13 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 348 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16073583 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/073583
Coupling body for a plug connection of pipelines, in particular plastic pipelines Jan 25, 2017 Issued
Array ( [id] => 11715737 [patent_doc_number] => 20170184236 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2017-06-29 [patent_title] => 'HOSE CLAMP WITH RETAINING BRACKET' [patent_app_type] => utility [patent_app_number] => 15/392194 [patent_app_country] => US [patent_app_date] => 2016-12-28 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 14 [patent_figures_cnt] => 14 [patent_no_of_words] => 7621 [patent_no_of_claims] => 20 [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] => 15392194 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/392194
Hose clamp with retaining bracket Dec 27, 2016 Issued
Array ( [id] => 18643874 [patent_doc_number] => 11767936 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2023-09-26 [patent_title] => Pipe connection [patent_app_type] => utility [patent_app_number] => 16/063876 [patent_app_country] => US [patent_app_date] => 2016-12-19 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 2 [patent_figures_cnt] => 2 [patent_no_of_words] => 7499 [patent_no_of_claims] => 27 [patent_no_of_ind_claims] => 2 [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] => 16063876 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/063876
Pipe connection Dec 18, 2016 Issued
Array ( [id] => 13959411 [patent_doc_number] => 20190056049 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2019-02-21 [patent_title] => THREADED JOINT FOR OIL WELL TUBING [patent_app_type] => utility [patent_app_number] => 16/077912 [patent_app_country] => US [patent_app_date] => 2016-12-16 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 5009 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => 0 [patent_words_short_claim] => 463 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16077912 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/077912
Threaded joint for oil well tubing Dec 15, 2016 Issued
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