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] => 18754977 [patent_doc_number] => 20230358403 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-11-09 [patent_title] => COMBUSTOR DILUTION WITH VORTEX GENERATING TURBULATORS [patent_app_type] => utility [patent_app_number] => 18/354167 [patent_app_country] => US [patent_app_date] => 2023-07-18 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 9187 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -15 [patent_words_short_claim] => 236 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18354167 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/354167
COMBUSTOR DILUTION WITH VORTEX GENERATING TURBULATORS Jul 17, 2023 Pending
Array ( [id] => 18552744 [patent_doc_number] => 20230250755 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-08-10 [patent_title] => PROPULSION SYSTEM CONFIGURATIONS AND METHODS OF OPERATION [patent_app_type] => utility [patent_app_number] => 18/302977 [patent_app_country] => US [patent_app_date] => 2023-04-19 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 11185 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 102 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18302977 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/302977
PROPULSION SYSTEM CONFIGURATIONS AND METHODS OF OPERATION Apr 18, 2023 Pending
Array ( [id] => 18452549 [patent_doc_number] => 20230193828 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-06-22 [patent_title] => SURFACE IGNITER COOLING SYSTEM [patent_app_type] => utility [patent_app_number] => 18/110140 [patent_app_country] => US [patent_app_date] => 2023-02-15 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 8109 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -13 [patent_words_short_claim] => 307 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18110140 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/110140
SURFACE IGNITER COOLING SYSTEM Feb 14, 2023 Pending
Array ( [id] => 18903415 [patent_doc_number] => 20240018900 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-01-18 [patent_title] => UNDUCTED PROPULSION SYSTEM [patent_app_type] => utility [patent_app_number] => 18/164951 [patent_app_country] => US [patent_app_date] => 2023-02-06 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 16497 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -19 [patent_words_short_claim] => 226 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18164951 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/164951
UNDUCTED PROPULSION SYSTEM Feb 5, 2023 Pending
Array ( [id] => 18666901 [patent_doc_number] => 11773785 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2023-10-03 [patent_title] => Reverse-flow gas turbine engine [patent_app_type] => utility [patent_app_number] => 18/096071 [patent_app_country] => US [patent_app_date] => 2023-01-12 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 2 [patent_figures_cnt] => 2 [patent_no_of_words] => 4148 [patent_no_of_claims] => 16 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 184 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18096071 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/096071
Reverse-flow gas turbine engine Jan 11, 2023 Issued
Array ( [id] => 18552749 [patent_doc_number] => 20230250760 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-08-10 [patent_title] => TURBINE GENERATOR SYSTEM [patent_app_type] => utility [patent_app_number] => 18/153135 [patent_app_country] => US [patent_app_date] => 2023-01-11 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 6540 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -14 [patent_words_short_claim] => 174 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18153135 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/153135
TURBINE GENERATOR SYSTEM Jan 10, 2023 Pending
Array ( [id] => 18693649 [patent_doc_number] => 20230324048 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-10-12 [patent_title] => GAS TURBINE ASSEMBLIES AND METHODS [patent_app_type] => utility [patent_app_number] => 18/085781 [patent_app_country] => US [patent_app_date] => 2022-12-21 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 7153 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 82 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18085781 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/085781
GAS TURBINE ASSEMBLIES AND METHODS Dec 20, 2022 Pending
Array ( [id] => 18972917 [patent_doc_number] => 20240053009 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-02-15 [patent_title] => DOME-DEFLECTOR FOR A COMBUSTOR OF A GAS TURBINE [patent_app_type] => utility [patent_app_number] => 18/066427 [patent_app_country] => US [patent_app_date] => 2022-12-15 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 7936 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -18 [patent_words_short_claim] => 57 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18066427 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/066427
DOME-DEFLECTOR FOR A COMBUSTOR OF A GAS TURBINE Dec 14, 2022 Pending
Array ( [id] => 18392179 [patent_doc_number] => 20230160398 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-05-25 [patent_title] => COMPRESSION SYSTEM FOR A GAS TURBINE, HIGH-PRESSURE COMPRESSOR, COMPRESSION SYSTEM COMPRISING A HIGH-PRESSURE COMPRESSOR, LOW-PRESSURE COMPRESSOR, COMPRESSION SYSTEM COMPRISING A LOW-PRESSURE COMPRESSOR, AND GAS TURBINE [patent_app_type] => utility [patent_app_number] => 18/057256 [patent_app_country] => US [patent_app_date] => 2022-11-21 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 9924 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -8 [patent_words_short_claim] => 215 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18057256 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/057256
COMPRESSION SYSTEM FOR A GAS TURBINE, HIGH-PRESSURE COMPRESSOR, COMPRESSION SYSTEM COMPRISING A HIGH-PRESSURE COMPRESSOR, LOW-PRESSURE COMPRESSOR, COMPRESSION SYSTEM COMPRISING A LOW-PRESSURE COMPRESSOR, AND GAS TURBINE Nov 20, 2022 Pending
Array ( [id] => 18512220 [patent_doc_number] => 20230228419 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-07-20 [patent_title] => EXTENDED BULKHEAD PANEL [patent_app_type] => utility [patent_app_number] => 17/984159 [patent_app_country] => US [patent_app_date] => 2022-11-09 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 5733 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -15 [patent_words_short_claim] => 47 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17984159 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/984159
Extended bulkhead panel Nov 8, 2022 Issued
Array ( [id] => 18229248 [patent_doc_number] => 20230068242 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-03-02 [patent_title] => TORCH IGNITER COOLING SYSTEM [patent_app_type] => utility [patent_app_number] => 17/983691 [patent_app_country] => US [patent_app_date] => 2022-11-09 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 9596 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -19 [patent_words_short_claim] => 270 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17983691 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/983691
Torch igniter cooling system Nov 8, 2022 Issued
Array ( [id] => 18192446 [patent_doc_number] => 20230045965 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-02-16 [patent_title] => TORCH IGNITER FOR A COMBUSTOR [patent_app_type] => utility [patent_app_number] => 17/975110 [patent_app_country] => US [patent_app_date] => 2022-10-27 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 3968 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 78 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17975110 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/975110
Torch igniter for a combustor Oct 26, 2022 Issued
Array ( [id] => 18771727 [patent_doc_number] => 20230366548 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-11-16 [patent_title] => IGNITOR HOUSING FOR A COMBUSTOR OF A GAS TURBINE [patent_app_type] => utility [patent_app_number] => 17/823198 [patent_app_country] => US [patent_app_date] => 2022-08-30 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 8982 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -18 [patent_words_short_claim] => 202 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17823198 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/823198
IGNITOR HOUSING FOR A COMBUSTOR OF A GAS TURBINE Aug 29, 2022 Pending
Array ( [id] => 18199651 [patent_doc_number] => 20230053171 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-02-16 [patent_title] => COMBINED POWER SYSTEM [patent_app_type] => utility [patent_app_number] => 17/882658 [patent_app_country] => US [patent_app_date] => 2022-08-08 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 20141 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -7 [patent_words_short_claim] => 527 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17882658 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/882658
Combined power system Aug 7, 2022 Issued
Array ( [id] => 18940278 [patent_doc_number] => 20240035417 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-02-01 [patent_title] => SHAFT COUPLE FOR RAPID START [patent_app_type] => utility [patent_app_number] => 17/873884 [patent_app_country] => US [patent_app_date] => 2022-07-26 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 4508 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 180 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17873884 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/873884
SHAFT COUPLE FOR RAPID START Jul 25, 2022 Pending
Array ( [id] => 18666890 [patent_doc_number] => 11773773 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2023-10-03 [patent_title] => Gas turbine engine centrifugal compressor with impeller load and cooling control [patent_app_type] => utility [patent_app_number] => 17/874213 [patent_app_country] => US [patent_app_date] => 2022-07-26 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 5 [patent_figures_cnt] => 5 [patent_no_of_words] => 5396 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 218 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17874213 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/874213
Gas turbine engine centrifugal compressor with impeller load and cooling control Jul 25, 2022 Issued
Array ( [id] => 18923820 [patent_doc_number] => 20240026824 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-01-25 [patent_title] => CRYOGENIC ASSISTED BOTTOMING CYCLE [patent_app_type] => utility [patent_app_number] => 17/871270 [patent_app_country] => US [patent_app_date] => 2022-07-22 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 3860 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -18 [patent_words_short_claim] => 158 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17871270 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/871270
CRYOGENIC ASSISTED BOTTOMING CYCLE Jul 21, 2022 Pending
Array ( [id] => 18650418 [patent_doc_number] => 20230296251 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-09-21 [patent_title] => COMBUSTION LINER ASSEMBLY [patent_app_type] => utility [patent_app_number] => 17/812278 [patent_app_country] => US [patent_app_date] => 2022-07-13 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 11354 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -18 [patent_words_short_claim] => 129 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17812278 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/812278
COMBUSTION LINER ASSEMBLY Jul 12, 2022 Pending
Array ( [id] => 18676367 [patent_doc_number] => 20230313992 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-10-05 [patent_title] => LINER ASSEMBLY FOR A COMBUSTOR [patent_app_type] => utility [patent_app_number] => 17/811771 [patent_app_country] => US [patent_app_date] => 2022-07-11 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 14477 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -18 [patent_words_short_claim] => 86 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17811771 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/811771
LINER ASSEMBLY FOR A COMBUSTOR Jul 10, 2022 Pending
Array ( [id] => 18629185 [patent_doc_number] => 20230288065 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-09-14 [patent_title] => DOME-DEFLECTOR JOINT COOLING ARRANGEMENT [patent_app_type] => utility [patent_app_number] => 17/810678 [patent_app_country] => US [patent_app_date] => 2022-07-05 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 5545 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [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] => 17810678 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/810678
Dome-deflector joint cooling arrangement Jul 4, 2022 Issued
Menu