Search

David W Duffy

Examiner (ID: 931, Phone: (571)272-1574 , Office: P/3716 )

Most Active Art Unit
3716
Art Unit(s)
3700, 3714, 3716, 3715
Total Applications
553
Issued Applications
291
Pending Applications
12
Abandoned Applications
250

Applications

Application numberTitle of the applicationFiling DateStatus
Array ( [id] => 11988301 [patent_doc_number] => 20170292456 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2017-10-12 [patent_title] => 'INTEGRATED GAS TURBINE INLET SILENCER AND BLEED HEAT SYSTEM' [patent_app_type] => utility [patent_app_number] => 15/096922 [patent_app_country] => US [patent_app_date] => 2016-04-12 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 12 [patent_figures_cnt] => 12 [patent_no_of_words] => 4170 [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] => 15096922 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/096922
INTEGRATED GAS TURBINE INLET SILENCER AND BLEED HEAT SYSTEM Apr 11, 2016 Abandoned
Array ( [id] => 11108291 [patent_doc_number] => 20160305261 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2016-10-20 [patent_title] => 'High pressure ratio twin spool industrial gas turbine engine with dual flow high spool compressor' [patent_app_type] => utility [patent_app_number] => 15/092292 [patent_app_country] => US [patent_app_date] => 2016-04-06 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 16 [patent_figures_cnt] => 16 [patent_no_of_words] => 7939 [patent_no_of_claims] => 11 [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] => 15092292 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/092292
High pressure ratio twin spool industrial gas turbine engine with dual flow high spool compressor Apr 5, 2016 Abandoned
Array ( [id] => 11866983 [patent_doc_number] => 20170234268 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2017-08-17 [patent_title] => 'HYBRID ROCKET MOTOR WITH INTEGRAL OXIDIZER TANK' [patent_app_type] => utility [patent_app_number] => 15/044490 [patent_app_country] => US [patent_app_date] => 2016-02-16 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 2 [patent_figures_cnt] => 2 [patent_no_of_words] => 3449 [patent_no_of_claims] => 18 [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] => 15044490 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/044490
Hybrid rocket motor with integral oxidizer tank Feb 15, 2016 Issued
Array ( [id] => 18013835 [patent_doc_number] => 11506120 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2022-11-22 [patent_title] => Method for manufacturing and utilizing high-density air [patent_app_type] => utility [patent_app_number] => 15/572629 [patent_app_country] => US [patent_app_date] => 2016-01-13 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 2 [patent_figures_cnt] => 2 [patent_no_of_words] => 2456 [patent_no_of_claims] => 6 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 107 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 15572629 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/572629
Method for manufacturing and utilizing high-density air Jan 12, 2016 Issued
Array ( [id] => 11715087 [patent_doc_number] => 20170183585 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2017-06-29 [patent_title] => 'GASIFICATION UNIT, INTEGRATED GASIFICATION COMBINED CYCLE FACILITY, AND METHOD FOR STARTING GASIFICATION UNIT' [patent_app_type] => utility [patent_app_number] => 15/312915 [patent_app_country] => US [patent_app_date] => 2015-07-02 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 12 [patent_figures_cnt] => 12 [patent_no_of_words] => 15618 [patent_no_of_claims] => 13 [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] => 15312915 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/312915
GASIFICATION UNIT, INTEGRATED GASIFICATION COMBINED CYCLE FACILITY, AND METHOD FOR STARTING GASIFICATION UNIT Jul 1, 2015 Abandoned
Array ( [id] => 13481095 [patent_doc_number] => 20180292090 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2018-10-11 [patent_title] => HYBRID COMPONENT COMPRISING A METAL-REINFORCED CERAMIC MATRIX COMPOSITE MATERIAL [patent_app_type] => utility [patent_app_number] => 15/573928 [patent_app_country] => US [patent_app_date] => 2015-06-30 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 3405 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 88 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 15573928 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/573928
HYBRID COMPONENT COMPRISING A METAL-REINFORCED CERAMIC MATRIX COMPOSITE MATERIAL Jun 29, 2015 Abandoned
Array ( [id] => 11744567 [patent_doc_number] => 20170198640 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2017-07-13 [patent_title] => 'DEVICE AND METHOD FOR PRE-HEATING FUEL IN A TURBOMACHINE' [patent_app_type] => utility [patent_app_number] => 15/313526 [patent_app_country] => US [patent_app_date] => 2015-05-22 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 4 [patent_no_of_words] => 2577 [patent_no_of_claims] => 12 [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] => 15313526 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/313526
DEVICE AND METHOD FOR PRE-HEATING FUEL IN A TURBOMACHINE May 21, 2015 Abandoned
Array ( [id] => 11728406 [patent_doc_number] => 20170189849 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2017-07-06 [patent_title] => 'Device and Method for Treating a Gas Flow' [patent_app_type] => utility [patent_app_number] => 15/313735 [patent_app_country] => US [patent_app_date] => 2015-05-21 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 3 [patent_no_of_words] => 2043 [patent_no_of_claims] => 6 [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] => 15313735 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/313735
Device and Method for Treating a Gas Flow May 20, 2015 Abandoned
Array ( [id] => 11402368 [patent_doc_number] => 20170022906 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2017-01-26 [patent_title] => 'METHOD FOR ISOLATING A COMBUSTIBLE FLUID TANK FROM A DOWNSTREAM PORTION OF A TURBOMACHINE SUPPLY SYSTEM IN CASE OF A FIRE, AND SUCH A SUPPLY SYSTEM' [patent_app_type] => utility [patent_app_number] => 15/302571 [patent_app_country] => US [patent_app_date] => 2015-04-07 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 4 [patent_no_of_words] => 4702 [patent_no_of_claims] => 10 [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] => 15302571 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/302571
METHOD FOR ISOLATING A COMBUSTIBLE FLUID TANK FROM A DOWNSTREAM PORTION OF A TURBOMACHINE SUPPLY SYSTEM IN CASE OF A FIRE, AND SUCH A SUPPLY SYSTEM Apr 6, 2015 Abandoned
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