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] => 12587634 [patent_doc_number] => 20180087707 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2018-03-29 [patent_title] => CONNECTION DEVICE COMPRISING A FLEXIBLE TUBE FOR COLLECTION OF A LIQUID IN THE EVENT OF LEAKAGE OR OOZING [patent_app_type] => utility [patent_app_number] => 15/716064 [patent_app_country] => US [patent_app_date] => 2017-09-26 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 2664 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -7 [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] => 15716064 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/716064
Connection device comprising a flexible tube for collection of a liquid in the event of leakage or oozing Sep 25, 2017 Issued
Array ( [id] => 18643872 [patent_doc_number] => 11767934 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2023-09-26 [patent_title] => Internally welded pipes [patent_app_type] => utility [patent_app_number] => 15/714054 [patent_app_country] => US [patent_app_date] => 2017-09-25 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 185 [patent_figures_cnt] => 129 [patent_no_of_words] => 146723 [patent_no_of_claims] => 9 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 197 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 15714054 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/714054
Internally welded pipes Sep 24, 2017 Issued
Array ( [id] => 14950203 [patent_doc_number] => 10436362 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2019-10-08 [patent_title] => Clamp assembly [patent_app_type] => utility [patent_app_number] => 15/709462 [patent_app_country] => US [patent_app_date] => 2017-09-19 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 7 [patent_figures_cnt] => 7 [patent_no_of_words] => 3888 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 233 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 15709462 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/709462
Clamp assembly Sep 18, 2017 Issued
Array ( [id] => 12117864 [patent_doc_number] => 20180001449 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2018-01-04 [patent_title] => 'Push-to-Connect Fitting with Release Assistance Assembly and Device' [patent_app_type] => utility [patent_app_number] => 15/708888 [patent_app_country] => US [patent_app_date] => 2017-09-19 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 9 [patent_figures_cnt] => 9 [patent_no_of_words] => 7433 [patent_no_of_claims] => 19 [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] => 15708888 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/708888
Push-to-connect fitting with release assistance assembly and device Sep 18, 2017 Issued
Array ( [id] => 15484495 [patent_doc_number] => 10557583 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2020-02-11 [patent_title] => Riser cap and irrigation piping system using same [patent_app_type] => utility [patent_app_number] => 15/707852 [patent_app_country] => US [patent_app_date] => 2017-09-18 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 6 [patent_figures_cnt] => 6 [patent_no_of_words] => 3028 [patent_no_of_claims] => 19 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 159 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 15707852 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/707852
Riser cap and irrigation piping system using same Sep 17, 2017 Issued
Array ( [id] => 15229273 [patent_doc_number] => 10502352 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2019-12-10 [patent_title] => Joint assembly [patent_app_type] => utility [patent_app_number] => 15/707044 [patent_app_country] => US [patent_app_date] => 2017-09-18 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 7 [patent_figures_cnt] => 9 [patent_no_of_words] => 3179 [patent_no_of_claims] => 13 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 285 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 15707044 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/707044
Joint assembly Sep 17, 2017 Issued
Array ( [id] => 14795861 [patent_doc_number] => 10400927 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2019-09-03 [patent_title] => Earthquake-resistant flexible slip joint apparatus [patent_app_type] => utility [patent_app_number] => 15/702849 [patent_app_country] => US [patent_app_date] => 2017-09-13 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 4 [patent_no_of_words] => 3837 [patent_no_of_claims] => 6 [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] => 15702849 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/702849
Earthquake-resistant flexible slip joint apparatus Sep 12, 2017 Issued
Array ( [id] => 14044581 [patent_doc_number] => 20190078397 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2019-03-14 [patent_title] => SLIP LOCK CONNECTOR SYSTEM [patent_app_type] => utility [patent_app_number] => 15/699561 [patent_app_country] => US [patent_app_date] => 2017-09-08 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 4531 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 94 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 15699561 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/699561
Slip lock connector system Sep 7, 2017 Issued
Array ( [id] => 13094223 [patent_doc_number] => 10066446 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2018-09-04 [patent_title] => Tapered spline connection for drill pipe, casing, and tubing [patent_app_type] => utility [patent_app_number] => 15/699880 [patent_app_country] => US [patent_app_date] => 2017-09-08 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 14 [patent_figures_cnt] => 20 [patent_no_of_words] => 9908 [patent_no_of_claims] => 9 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 568 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 15699880 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/699880
Tapered spline connection for drill pipe, casing, and tubing Sep 7, 2017 Issued
Array ( [id] => 14020451 [patent_doc_number] => 20190072219 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2019-03-07 [patent_title] => Coupling kit to quickly attach and detach a safety whip mast to an off-road vehicle and prevent the mast from rotating. [patent_app_type] => utility [patent_app_number] => 15/697411 [patent_app_country] => US [patent_app_date] => 2017-09-06 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 2678 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -6 [patent_words_short_claim] => 71 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 15697411 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/697411
Coupling kit to quickly attach and detach a safety whip mast to an off-road vehicle and prevent the mast from rotating. Sep 5, 2017 Abandoned
Array ( [id] => 13988899 [patent_doc_number] => 20190063607 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2019-02-28 [patent_title] => METAL SEAL FITTING FOR IN-TANK TRANSMISSION OIL COOLER [patent_app_type] => utility [patent_app_number] => 15/690510 [patent_app_country] => US [patent_app_date] => 2017-08-30 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 8592 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -18 [patent_words_short_claim] => 187 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 15690510 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/690510
Metal seal fitting for in-tank transmission oil cooler Aug 29, 2017 Issued
Array ( [id] => 15933281 [patent_doc_number] => 20200158274 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2020-05-21 [patent_title] => PIPE FITTING CONNECTING METHOD AND CONNECTING STRUCTURE [patent_app_type] => utility [patent_app_number] => 16/461137 [patent_app_country] => US [patent_app_date] => 2017-08-30 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 3469 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -9 [patent_words_short_claim] => 190 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16461137 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/461137
PIPE FITTING CONNECTING METHOD AND CONNECTING STRUCTURE Aug 29, 2017 Abandoned
Array ( [id] => 13704573 [patent_doc_number] => 20170363241 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2017-12-21 [patent_title] => CONNECTOR [patent_app_type] => utility [patent_app_number] => 15/690663 [patent_app_country] => US [patent_app_date] => 2017-08-30 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 3058 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [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] => 15690663 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/690663
Connector Aug 29, 2017 Issued
Array ( [id] => 12220254 [patent_doc_number] => 20180058614 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2018-03-01 [patent_title] => 'CLAMP APPARATUS AND METHOD FOR JOINING PIPELINE SEGMENTS' [patent_app_type] => utility [patent_app_number] => 15/685616 [patent_app_country] => US [patent_app_date] => 2017-08-24 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 10 [patent_figures_cnt] => 10 [patent_no_of_words] => 4821 [patent_no_of_claims] => 14 [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] => 15685616 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/685616
Clamp apparatus and method for joining pipeline segments Aug 23, 2017 Issued
Array ( [id] => 12179595 [patent_doc_number] => 20180038531 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2018-02-08 [patent_title] => 'CONNECTING APPARATUS COMPRISING A RETENTION COLLAR' [patent_app_type] => utility [patent_app_number] => 15/668061 [patent_app_country] => US [patent_app_date] => 2017-08-03 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 4 [patent_no_of_words] => 5074 [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] => 15668061 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/668061
CONNECTING APPARATUS COMPRISING A RETENTION COLLAR Aug 2, 2017 Abandoned
Array ( [id] => 14247849 [patent_doc_number] => 10274119 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2019-04-30 [patent_title] => Double cam levers and safety lock for cam lock fitting [patent_app_type] => utility [patent_app_number] => 15/664740 [patent_app_country] => US [patent_app_date] => 2017-07-31 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 6 [patent_figures_cnt] => 30 [patent_no_of_words] => 8731 [patent_no_of_claims] => 18 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 353 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 15664740 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/664740
Double cam levers and safety lock for cam lock fitting Jul 30, 2017 Issued
Array ( [id] => 12162990 [patent_doc_number] => 20180034256 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2018-02-01 [patent_title] => 'HAZARDOUS ENVIRONMENT CONDUIT SEALING' [patent_app_type] => utility [patent_app_number] => 15/663113 [patent_app_country] => US [patent_app_date] => 2017-07-28 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 10 [patent_figures_cnt] => 10 [patent_no_of_words] => 4782 [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] => 15663113 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/663113
Hazardous environment conduit sealing Jul 27, 2017 Issued
Array ( [id] => 13828303 [patent_doc_number] => 20190017636 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2019-01-17 [patent_title] => WIDE RANGE COUPLING [patent_app_type] => utility [patent_app_number] => 15/649022 [patent_app_country] => US [patent_app_date] => 2017-07-13 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 10081 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 117 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 15649022 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/649022
Wide range coupling Jul 12, 2017 Issued
Array ( [id] => 13828305 [patent_doc_number] => 20190017637 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2019-01-17 [patent_title] => TOP BAR COUPLING [patent_app_type] => utility [patent_app_number] => 15/649015 [patent_app_country] => US [patent_app_date] => 2017-07-13 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 8641 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -16 [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] => 15649015 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/649015
Top bar coupling Jul 12, 2017 Issued
Array ( [id] => 13828303 [patent_doc_number] => 20190017636 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2019-01-17 [patent_title] => WIDE RANGE COUPLING [patent_app_type] => utility [patent_app_number] => 15/649022 [patent_app_country] => US [patent_app_date] => 2017-07-13 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 10081 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 117 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 15649022 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/649022
Wide range coupling Jul 12, 2017 Issued
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