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] => 9259984 [patent_doc_number] => 20130341913 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2013-12-26 [patent_title] => 'COUPLING SYSTEM FOR AN EXPANDABLE FLUID DISTRIBUTION SYSTEM' [patent_app_type] => utility [patent_app_number] => 13/531777 [patent_app_country] => US [patent_app_date] => 2012-06-25 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 7 [patent_figures_cnt] => 7 [patent_no_of_words] => 5245 [patent_no_of_claims] => 21 [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] => 13531777 [rel_patent_id] =>[rel_patent_doc_number] =>)
13/531777
Coupling system for an expandable fluid distribution system Jun 24, 2012 Issued
Array ( [id] => 8425724 [patent_doc_number] => 20120247599 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2012-10-04 [patent_title] => 'Irrigation Pipe Connector' [patent_app_type] => utility [patent_app_number] => 13/494597 [patent_app_country] => US [patent_app_date] => 2012-06-12 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 4 [patent_no_of_words] => 3156 [patent_no_of_claims] => 29 [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] => 13494597 [rel_patent_id] =>[rel_patent_doc_number] =>)
13/494597
Irrigation pipe connector Jun 11, 2012 Issued
Array ( [id] => 9177579 [patent_doc_number] => 20130319564 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2013-12-05 [patent_title] => 'PLUMBING ELBOW' [patent_app_type] => utility [patent_app_number] => 13/486517 [patent_app_country] => US [patent_app_date] => 2012-06-01 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 3 [patent_no_of_words] => 1297 [patent_no_of_claims] => 4 [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] => 13486517 [rel_patent_id] =>[rel_patent_doc_number] =>)
13/486517
Plumbing elbow May 31, 2012 Issued
Array ( [id] => 9104831 [patent_doc_number] => 20130277962 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2013-10-24 [patent_title] => 'Duct Fittings' [patent_app_type] => utility [patent_app_number] => 13/449608 [patent_app_country] => US [patent_app_date] => 2012-04-18 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 9 [patent_figures_cnt] => 9 [patent_no_of_words] => 6321 [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] => 13449608 [rel_patent_id] =>[rel_patent_doc_number] =>)
13/449608
Duct fittings Apr 17, 2012 Issued
Array ( [id] => 9064063 [patent_doc_number] => 20130255819 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2013-10-03 [patent_title] => 'GAS TUBE STRUCTURE' [patent_app_type] => utility [patent_app_number] => 13/430889 [patent_app_country] => US [patent_app_date] => 2012-03-27 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 7 [patent_figures_cnt] => 7 [patent_no_of_words] => 1663 [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] => 13430889 [rel_patent_id] =>[rel_patent_doc_number] =>)
13/430889
Gas tube structure Mar 26, 2012 Issued
Array ( [id] => 8498818 [patent_doc_number] => 20120298226 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2012-11-29 [patent_title] => 'Modular Heating and/or Cooling System with a Vertical Manifold and Method of Making Same' [patent_app_type] => utility [patent_app_number] => 13/430559 [patent_app_country] => US [patent_app_date] => 2012-03-26 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 11 [patent_figures_cnt] => 11 [patent_no_of_words] => 7828 [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] => 13430559 [rel_patent_id] =>[rel_patent_doc_number] =>)
13/430559
Modular Heating and/or Cooling System with a Vertical Manifold and Method of Making Same Mar 25, 2012 Abandoned
Array ( [id] => 9050910 [patent_doc_number] => 20130248624 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2013-09-26 [patent_title] => 'RETRACTABLE PIPE STRUCTURE OF AIR BLOW GUN' [patent_app_type] => utility [patent_app_number] => 13/429193 [patent_app_country] => US [patent_app_date] => 2012-03-23 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 7 [patent_figures_cnt] => 7 [patent_no_of_words] => 2249 [patent_no_of_claims] => 2 [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] => 13429193 [rel_patent_id] =>[rel_patent_doc_number] =>)
13/429193
Retractable pipe structure of air blow gun Mar 22, 2012 Issued
Array ( [id] => 8425304 [patent_doc_number] => 20120247179 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2012-10-04 [patent_title] => 'SENSOR HOUSING AND LATCHING MECHANISM FOR SENSOR HOUSING' [patent_app_type] => utility [patent_app_number] => 13/428398 [patent_app_country] => US [patent_app_date] => 2012-03-23 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 13 [patent_figures_cnt] => 13 [patent_no_of_words] => 5967 [patent_no_of_claims] => 23 [patent_no_of_ind_claims] => 5 [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] => 13428398 [rel_patent_id] =>[rel_patent_doc_number] =>)
13/428398
SENSOR HOUSING AND LATCHING MECHANISM FOR SENSOR HOUSING Mar 22, 2012 Abandoned
Array ( [id] => 9051491 [patent_doc_number] => 20130249206 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2013-09-26 [patent_title] => 'RETRACTABLE PIPE ASSEMBLY OF AIR BLOW GUN' [patent_app_type] => utility [patent_app_number] => 13/429127 [patent_app_country] => US [patent_app_date] => 2012-03-23 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 9 [patent_figures_cnt] => 9 [patent_no_of_words] => 2397 [patent_no_of_claims] => 3 [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] => 13429127 [rel_patent_id] =>[rel_patent_doc_number] =>)
13/429127
Retractable pipe assembly of air blow gun Mar 22, 2012 Issued
Array ( [id] => 10829702 [patent_doc_number] => 08857859 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2014-10-14 [patent_title] => 'Preconditioned air connector assembly for aircraft' [patent_app_type] => utility [patent_app_number] => 13/420512 [patent_app_country] => US [patent_app_date] => 2012-03-14 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 5 [patent_figures_cnt] => 7 [patent_no_of_words] => 3777 [patent_no_of_claims] => 15 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 315 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 13420512 [rel_patent_id] =>[rel_patent_doc_number] =>)
13/420512
Preconditioned air connector assembly for aircraft Mar 13, 2012 Issued
Array ( [id] => 8249291 [patent_doc_number] => 20120153614 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2012-06-21 [patent_title] => 'METHOD OF FORMING A CLAMPING RING AND A CLAMPING RING' [patent_app_type] => utility [patent_app_number] => 13/409529 [patent_app_country] => US [patent_app_date] => 2012-03-01 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 2 [patent_figures_cnt] => 2 [patent_no_of_words] => 1895 [patent_no_of_claims] => 17 [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] => publications/A1/0153/20120153614.pdf [firstpage_image] =>[orig_patent_app_number] => 13409529 [rel_patent_id] =>[rel_patent_doc_number] =>)
13/409529
Clamping ring Feb 29, 2012 Issued
Array ( [id] => 10077986 [patent_doc_number] => 09115830 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2015-08-25 [patent_title] => 'Jacketed line coupling' [patent_app_type] => utility [patent_app_number] => 13/396067 [patent_app_country] => US [patent_app_date] => 2012-02-14 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 3 [patent_no_of_words] => 2330 [patent_no_of_claims] => 12 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 193 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 13396067 [rel_patent_id] =>[rel_patent_doc_number] =>)
13/396067
Jacketed line coupling Feb 13, 2012 Issued
Array ( [id] => 8961008 [patent_doc_number] => 20130200610 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2013-08-08 [patent_title] => 'Fitting Having Receptacle of Varying Depth' [patent_app_type] => utility [patent_app_number] => 13/368589 [patent_app_country] => US [patent_app_date] => 2012-02-08 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 15 [patent_figures_cnt] => 15 [patent_no_of_words] => 8751 [patent_no_of_claims] => 83 [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] => 13368589 [rel_patent_id] =>[rel_patent_doc_number] =>)
13/368589
Fitting having receptacle of varying depth Feb 7, 2012 Issued
Array ( [id] => 9202566 [patent_doc_number] => 20140001743 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2014-01-02 [patent_title] => 'IRRIGATION PIPE COUPLER' [patent_app_type] => utility [patent_app_number] => 14/004707 [patent_app_country] => US [patent_app_date] => 2012-02-04 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 6 [patent_figures_cnt] => 6 [patent_no_of_words] => 3082 [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] => 14004707 [rel_patent_id] =>[rel_patent_doc_number] =>)
14/004707
Irrigation pipe coupler Feb 3, 2012 Issued
Array ( [id] => 11736137 [patent_doc_number] => 09700709 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2017-07-11 [patent_title] => 'Coupling arrangement' [patent_app_type] => utility [patent_app_number] => 13/982917 [patent_app_country] => US [patent_app_date] => 2012-01-26 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 6 [patent_figures_cnt] => 7 [patent_no_of_words] => 4175 [patent_no_of_claims] => 12 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 333 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 13982917 [rel_patent_id] =>[rel_patent_doc_number] =>)
13/982917
Coupling arrangement Jan 25, 2012 Issued
Array ( [id] => 8936706 [patent_doc_number] => 20130186503 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2013-07-25 [patent_title] => 'Corrosion mitigation system and method' [patent_app_type] => utility [patent_app_number] => 13/374917 [patent_app_country] => US [patent_app_date] => 2012-01-23 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 9 [patent_figures_cnt] => 9 [patent_no_of_words] => 3953 [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] => 13374917 [rel_patent_id] =>[rel_patent_doc_number] =>)
13/374917
Corrosion mitigation system and method Jan 22, 2012 Abandoned
Array ( [id] => 8937580 [patent_doc_number] => 20130187377 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2013-07-25 [patent_title] => 'FEMALE CONNECTOR AND METHOD FOR MAKING THE SAME' [patent_app_type] => utility [patent_app_number] => 13/355318 [patent_app_country] => US [patent_app_date] => 2012-01-20 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 7 [patent_figures_cnt] => 7 [patent_no_of_words] => 2040 [patent_no_of_claims] => 7 [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] => 13355318 [rel_patent_id] =>[rel_patent_doc_number] =>)
13/355318
FEMALE CONNECTOR AND METHOD FOR MAKING THE SAME Jan 19, 2012 Abandoned
Array ( [id] => 8937583 [patent_doc_number] => 20130187380 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2013-07-25 [patent_title] => 'Push-on Tubing Coupler with Triple Seal and Adapter' [patent_app_type] => utility [patent_app_number] => 13/353699 [patent_app_country] => US [patent_app_date] => 2012-01-19 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 8 [patent_figures_cnt] => 8 [patent_no_of_words] => 2751 [patent_no_of_claims] => 16 [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] => 13353699 [rel_patent_id] =>[rel_patent_doc_number] =>)
13/353699
Push-on Tubing Coupler with Triple Seal and Adapter Jan 18, 2012 Abandoned
Array ( [id] => 12017335 [patent_doc_number] => 09810029 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2017-11-07 [patent_title] => 'Drill string components resistant to jamming' [patent_app_type] => utility [patent_app_number] => 13/354189 [patent_app_country] => US [patent_app_date] => 2012-01-19 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 3 [patent_no_of_words] => 8933 [patent_no_of_claims] => 23 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 238 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 13354189 [rel_patent_id] =>[rel_patent_doc_number] =>)
13/354189
Drill string components resistant to jamming Jan 18, 2012 Issued
Array ( [id] => 10077991 [patent_doc_number] => 09115835 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2015-08-25 [patent_title] => 'Plug lock' [patent_app_type] => utility [patent_app_number] => 13/352728 [patent_app_country] => US [patent_app_date] => 2012-01-18 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 9 [patent_no_of_words] => 1679 [patent_no_of_claims] => 17 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 202 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 13352728 [rel_patent_id] =>[rel_patent_doc_number] =>)
13/352728
Plug lock Jan 17, 2012 Issued
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