Search

Haixia Du

Examiner (ID: 4656, Phone: (571)270-5646 , Office: P/2611 )

Most Active Art Unit
2611
Art Unit(s)
2600, 2611, 2677, 2699, 2628
Total Applications
602
Issued Applications
491
Pending Applications
53
Abandoned Applications
73

Applications

Application numberTitle of the applicationFiling DateStatus
Array ( [id] => 20014759 [patent_doc_number] => 20250152981 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-05-15 [patent_title] => ICE SLURRY FIREFIGHTING SYSTEM [patent_app_type] => utility [patent_app_number] => 18/945305 [patent_app_country] => US [patent_app_date] => 2024-11-12 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 0 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -9 [patent_words_short_claim] => 98 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18945305 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/945305
ICE SLURRY FIREFIGHTING SYSTEM Nov 11, 2024 Pending
Array ( [id] => 20343684 [patent_doc_number] => 12467408 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2025-11-11 [patent_title] => Ice reduction mechanism for turbofan engine [patent_app_type] => utility [patent_app_number] => 18/942928 [patent_app_country] => US [patent_app_date] => 2024-11-11 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 7 [patent_figures_cnt] => 12 [patent_no_of_words] => 4640 [patent_no_of_claims] => 8 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 124 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18942928 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/942928
Ice reduction mechanism for turbofan engine Nov 10, 2024 Issued
Array ( [id] => 19770778 [patent_doc_number] => 20250052204 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-02-13 [patent_title] => GAS TURBINE ENGINE WITH FRONT SUPPORT ARRANGEMENT [patent_app_type] => utility [patent_app_number] => 18/929956 [patent_app_country] => US [patent_app_date] => 2024-10-29 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 3379 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -18 [patent_words_short_claim] => 162 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18929956 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/929956
Gas turbine engine with front support arrangement Oct 28, 2024 Issued
Array ( [id] => 20467341 [patent_doc_number] => 12523376 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2026-01-13 [patent_title] => Gas turbine performance [patent_app_type] => utility [patent_app_number] => 18/892721 [patent_app_country] => US [patent_app_date] => 2024-09-23 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 5 [patent_no_of_words] => 101845 [patent_no_of_claims] => 23 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 346 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18892721 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/892721
GAS TURBINE PERFORMANCE Sep 22, 2024 Pending
Array ( [id] => 20214118 [patent_doc_number] => 12410763 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2025-09-09 [patent_title] => Gas turbine engine with third stream [patent_app_type] => utility [patent_app_number] => 18/888873 [patent_app_country] => US [patent_app_date] => 2024-09-18 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 20 [patent_figures_cnt] => 22 [patent_no_of_words] => 8967 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 118 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18888873 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/888873
Gas turbine engine with third stream Sep 17, 2024 Issued
Array ( [id] => 19847478 [patent_doc_number] => 20250092829 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-03-20 [patent_title] => POWERPLANT FOR AN AIRCRAFT [patent_app_type] => utility [patent_app_number] => 18/883246 [patent_app_country] => US [patent_app_date] => 2024-09-12 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 4330 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -9 [patent_words_short_claim] => 197 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18883246 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/883246
POWERPLANT FOR AN AIRCRAFT Sep 11, 2024 Pending
Array ( [id] => 19755151 [patent_doc_number] => 20250043716 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-02-06 [patent_title] => ROTARY CLOSED-CYCLE EXTERNALLY-HEATED ENGINE [patent_app_type] => utility [patent_app_number] => 18/827645 [patent_app_country] => US [patent_app_date] => 2024-09-06 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 97600 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -11 [patent_words_short_claim] => 65 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18827645 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/827645
ROTARY CLOSED-CYCLE EXTERNALLY-HEATED ENGINE Sep 5, 2024 Pending
Array ( [id] => 20387113 [patent_doc_number] => 12486834 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2025-12-02 [patent_title] => Chilled intake air for increased power generation [patent_app_type] => utility [patent_app_number] => 18/812564 [patent_app_country] => US [patent_app_date] => 2024-08-22 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 8 [patent_figures_cnt] => 10 [patent_no_of_words] => 7006 [patent_no_of_claims] => 13 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 139 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18812564 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/812564
Chilled intake air for increased power generation Aug 21, 2024 Issued
Array ( [id] => 20387113 [patent_doc_number] => 12486834 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2025-12-02 [patent_title] => Chilled intake air for increased power generation [patent_app_type] => utility [patent_app_number] => 18/812564 [patent_app_country] => US [patent_app_date] => 2024-08-22 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 8 [patent_figures_cnt] => 10 [patent_no_of_words] => 7006 [patent_no_of_claims] => 13 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 139 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18812564 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/812564
Chilled intake air for increased power generation Aug 21, 2024 Issued
Array ( [id] => 19615822 [patent_doc_number] => 20240401502 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-12-05 [patent_title] => COGENERATION OF CHEMICAL PRODUCTS [patent_app_type] => utility [patent_app_number] => 18/807522 [patent_app_country] => US [patent_app_date] => 2024-08-16 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 9335 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -16 [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] => 18807522 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/807522
COGENERATION OF CHEMICAL PRODUCTS Aug 15, 2024 Abandoned
Array ( [id] => 19615822 [patent_doc_number] => 20240401502 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-12-05 [patent_title] => COGENERATION OF CHEMICAL PRODUCTS [patent_app_type] => utility [patent_app_number] => 18/807522 [patent_app_country] => US [patent_app_date] => 2024-08-16 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 9335 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -16 [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] => 18807522 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/807522
COGENERATION OF CHEMICAL PRODUCTS Aug 15, 2024 Abandoned
Array ( [id] => 20373014 [patent_doc_number] => 12480443 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2025-11-25 [patent_title] => Control schemes for thermal management of power production systems and methods [patent_app_type] => utility [patent_app_number] => 18/796846 [patent_app_country] => US [patent_app_date] => 2024-08-07 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 6 [patent_figures_cnt] => 5 [patent_no_of_words] => 10020 [patent_no_of_claims] => 21 [patent_no_of_ind_claims] => 4 [patent_words_short_claim] => 129 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18796846 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/796846
Control schemes for thermal management of power production systems and methods Aug 6, 2024 Issued
Array ( [id] => 19754001 [patent_doc_number] => 20250042566 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-02-06 [patent_title] => AIR INTAKE WITH CHANGING WALL THICKNESS AND ASSOCIATED NACELLE [patent_app_type] => utility [patent_app_number] => 18/788352 [patent_app_country] => US [patent_app_date] => 2024-07-30 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 2367 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -9 [patent_words_short_claim] => 69 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18788352 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/788352
AIR INTAKE WITH CHANGING WALL THICKNESS AND ASSOCIATED NACELLE Jul 29, 2024 Issued
Array ( [id] => 19962213 [patent_doc_number] => 12331702 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2025-06-17 [patent_title] => Turboshaft engine [patent_app_type] => utility [patent_app_number] => 18/784568 [patent_app_country] => US [patent_app_date] => 2024-07-25 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 7 [patent_figures_cnt] => 8 [patent_no_of_words] => 1110 [patent_no_of_claims] => 6 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 277 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18784568 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/784568
Turboshaft engine Jul 24, 2024 Issued
Array ( [id] => 19770772 [patent_doc_number] => 20250052198 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-02-13 [patent_title] => COMBUSTION CHAMBER MODULE HAVING AN ANNULAR COMBUSTION CHAMBER [patent_app_type] => utility [patent_app_number] => 18/782262 [patent_app_country] => US [patent_app_date] => 2024-07-24 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 4031 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -13 [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] => 18782262 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/782262
Combustion chamber module having an annular combustion chamber Jul 23, 2024 Issued
Array ( [id] => 19724693 [patent_doc_number] => 20250027444 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-01-23 [patent_title] => ROTATING DETONATION COMBUSTOR SYSTEM AND METHOD OF OPERATING THE ROTATING DETONATION COMBUSTOR SYSTEM [patent_app_type] => utility [patent_app_number] => 18/777047 [patent_app_country] => US [patent_app_date] => 2024-07-18 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 4363 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 148 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18777047 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/777047
ROTATING DETONATION COMBUSTOR SYSTEM AND METHOD OF OPERATING THE ROTATING DETONATION COMBUSTOR SYSTEM Jul 17, 2024 Abandoned
Array ( [id] => 19724693 [patent_doc_number] => 20250027444 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-01-23 [patent_title] => ROTATING DETONATION COMBUSTOR SYSTEM AND METHOD OF OPERATING THE ROTATING DETONATION COMBUSTOR SYSTEM [patent_app_type] => utility [patent_app_number] => 18/777047 [patent_app_country] => US [patent_app_date] => 2024-07-18 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 4363 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 148 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18777047 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/777047
ROTATING DETONATION COMBUSTOR SYSTEM AND METHOD OF OPERATING THE ROTATING DETONATION COMBUSTOR SYSTEM Jul 17, 2024 Abandoned
Array ( [id] => 19891090 [patent_doc_number] => 20250116402 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-04-10 [patent_title] => TURBINE ENGINE COMBUSTOR WITH A DILUTION PASSAGE [patent_app_type] => utility [patent_app_number] => 18/768665 [patent_app_country] => US [patent_app_date] => 2024-07-10 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 10630 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 167 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18768665 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/768665
TURBINE ENGINE COMBUSTOR WITH A DILUTION PASSAGE Jul 9, 2024 Pending
Array ( [id] => 19891090 [patent_doc_number] => 20250116402 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-04-10 [patent_title] => TURBINE ENGINE COMBUSTOR WITH A DILUTION PASSAGE [patent_app_type] => utility [patent_app_number] => 18/768665 [patent_app_country] => US [patent_app_date] => 2024-07-10 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 10630 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 167 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18768665 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/768665
TURBINE ENGINE COMBUSTOR WITH A DILUTION PASSAGE Jul 9, 2024 Pending
Array ( [id] => 19691768 [patent_doc_number] => 20250010313 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-01-09 [patent_title] => LIQUID SPRAY NOZZLE AND LIQUID SPRAY DEVICE [patent_app_type] => utility [patent_app_number] => 18/765270 [patent_app_country] => US [patent_app_date] => 2024-07-07 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 7104 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -10 [patent_words_short_claim] => 146 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18765270 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/765270
LIQUID SPRAY NOZZLE AND LIQUID SPRAY DEVICE Jul 6, 2024 Pending
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