Search

David J. Walczak

Examiner (ID: 16217, Phone: (571)272-4895 , Office: P/3754 )

Most Active Art Unit
3754
Art Unit(s)
2403, 3751, 2899, 3105, 3754, 2832
Total Applications
4701
Issued Applications
3668
Pending Applications
254
Abandoned Applications
823

Applications

Application numberTitle of the applicationFiling DateStatus
Array ( [id] => 17687251 [patent_doc_number] => 20220194543 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2022-06-23 [patent_title] => IN-DAVIT RUN KITS AND METHODS FOR LIFEBOATS [patent_app_type] => utility [patent_app_number] => 17/132545 [patent_app_country] => US [patent_app_date] => 2020-12-23 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 4016 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 50 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17132545 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/132545
In-davit run kits and methods for lifeboats Dec 22, 2020 Issued
Array ( [id] => 16933191 [patent_doc_number] => 20210199080 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2021-07-01 [patent_title] => SYSTEM AND METHOD OF MANAGING THE TEMPERATURE OF FUEL INJECTED INTO INTERNAL COMBUSTION ENGINES [patent_app_type] => utility [patent_app_number] => 17/130781 [patent_app_country] => US [patent_app_date] => 2020-12-22 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 3284 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -8 [patent_words_short_claim] => 163 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17130781 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/130781
System and method of managing the temperature of fuel injected into internal combustion engines Dec 21, 2020 Issued
Array ( [id] => 16916832 [patent_doc_number] => 20210189924 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2021-06-24 [patent_title] => VENTILATOR-EQUIPPED ENGINE [patent_app_type] => utility [patent_app_number] => 17/119514 [patent_app_country] => US [patent_app_date] => 2020-12-11 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 4101 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -19 [patent_words_short_claim] => 68 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17119514 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/119514
Ventilator-equipped engine Dec 10, 2020 Issued
Array ( [id] => 19624645 [patent_doc_number] => 12163457 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2024-12-10 [patent_title] => Method and device for filling a hydraulic system with a hydraulic fluid [patent_app_type] => utility [patent_app_number] => 17/784511 [patent_app_country] => US [patent_app_date] => 2020-12-10 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 3 [patent_no_of_words] => 5292 [patent_no_of_claims] => 11 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 256 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17784511 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/784511
Method and device for filling a hydraulic system with a hydraulic fluid Dec 9, 2020 Issued
Array ( [id] => 18144368 [patent_doc_number] => 20230018219 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-01-19 [patent_title] => HYDRAULIC CONTROL SYSTEM FOR A VARIABLE COMPRESSION RATIO ENGINE [patent_app_type] => utility [patent_app_number] => 17/756952 [patent_app_country] => US [patent_app_date] => 2020-12-04 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 7656 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 210 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17756952 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/756952
HYDRAULIC CONTROL SYSTEM FOR A VARIABLE COMPRESSION RATIO ENGINE Dec 3, 2020 Abandoned
Array ( [id] => 16901590 [patent_doc_number] => 20210180506 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2021-06-17 [patent_title] => INTEGRATED COOLANT HEATING MODULE FOR VEHICLE [patent_app_type] => utility [patent_app_number] => 17/110533 [patent_app_country] => US [patent_app_date] => 2020-12-03 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 4457 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -14 [patent_words_short_claim] => 201 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17110533 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/110533
Integrated coolant heating module for vehicle Dec 2, 2020 Issued
Array ( [id] => 16855551 [patent_doc_number] => 20210156296 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2021-05-27 [patent_title] => THERMAL MANAGEMENT SYSTEM AND METHOD FOR HYBRID VEHICLE [patent_app_type] => utility [patent_app_number] => 17/102784 [patent_app_country] => US [patent_app_date] => 2020-11-24 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 4787 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -9 [patent_words_short_claim] => 359 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17102784 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/102784
Thermal management system and method for hybrid vehicle Nov 23, 2020 Issued
Array ( [id] => 18779823 [patent_doc_number] => 11821524 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2023-11-21 [patent_title] => Combination of cylinder and piston ring [patent_app_type] => utility [patent_app_number] => 17/757092 [patent_app_country] => US [patent_app_date] => 2020-11-19 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 1 [patent_figures_cnt] => 2 [patent_no_of_words] => 5612 [patent_no_of_claims] => 4 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 168 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17757092 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/757092
Combination of cylinder and piston ring Nov 18, 2020 Issued
Array ( [id] => 18181682 [patent_doc_number] => 20230042411 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-02-09 [patent_title] => VARIABLE-LENGTH CONNECTING ROD FOR AN ENGINE WITH A CONTROLLED COMPRESSION RATIO [patent_app_type] => utility [patent_app_number] => 17/755606 [patent_app_country] => US [patent_app_date] => 2020-11-04 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 10782 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 210 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17755606 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/755606
VARIABLE-LENGTH CONNECTING ROD FOR AN ENGINE WITH A CONTROLLED COMPRESSION RATIO Nov 3, 2020 Abandoned
Array ( [id] => 20116506 [patent_doc_number] => 12366200 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2025-07-22 [patent_title] => Internal combustion engine [patent_app_type] => utility [patent_app_number] => 17/772313 [patent_app_country] => US [patent_app_date] => 2020-10-29 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 25 [patent_figures_cnt] => 43 [patent_no_of_words] => 5600 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 140 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17772313 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/772313
Internal combustion engine Oct 28, 2020 Issued
Array ( [id] => 19840732 [patent_doc_number] => 12253111 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2025-03-18 [patent_title] => Internal combustion engine having targeted engine lubrication [patent_app_type] => utility [patent_app_number] => 17/772326 [patent_app_country] => US [patent_app_date] => 2020-10-29 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 25 [patent_figures_cnt] => 43 [patent_no_of_words] => 10000 [patent_no_of_claims] => 21 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 220 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17772326 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/772326
Internal combustion engine having targeted engine lubrication Oct 28, 2020 Issued
Array ( [id] => 18932981 [patent_doc_number] => 11885390 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2024-01-30 [patent_title] => Internal combustion engine having concentric camshaft and balance shaft [patent_app_type] => utility [patent_app_number] => 17/772369 [patent_app_country] => US [patent_app_date] => 2020-10-29 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 25 [patent_figures_cnt] => 43 [patent_no_of_words] => 9861 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 150 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17772369 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/772369
Internal combustion engine having concentric camshaft and balance shaft Oct 28, 2020 Issued
Array ( [id] => 19034914 [patent_doc_number] => 20240084729 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-03-14 [patent_title] => INTERNAL COMBUSTION ENGINE INCLUDING A CYLINDER CRANKCASE AND A CYLINDER HEAD WITH AN INTEGRATED HEIGHT-ADJUSTABLE FAN ATTACHMENT FOR ELASTIC V-RIBBED BELTS [patent_app_type] => utility [patent_app_number] => 17/767571 [patent_app_country] => US [patent_app_date] => 2020-10-05 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 1647 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -9 [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] => 17767571 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/767571
Internal combustion engine including a cylinder crankcase and a cylinder head with an integrated height-adjustable fan attachment for elastic v-ribbed belts Oct 4, 2020 Issued
Array ( [id] => 17215192 [patent_doc_number] => 20210348530 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2021-11-11 [patent_title] => OIL TEMEPERATURE INCREASING SYSTEM AND METHOD FOR ECO-FRIENDLY VEHICLE [patent_app_type] => utility [patent_app_number] => 17/038915 [patent_app_country] => US [patent_app_date] => 2020-09-30 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 4246 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -8 [patent_words_short_claim] => 95 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17038915 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/038915
Oil temperature increasing system and method for eco-friendly vehicle Sep 29, 2020 Issued
Array ( [id] => 16557973 [patent_doc_number] => 20210003121 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2021-01-07 [patent_title] => PROCESS FOR OPERATING A SINGLE-STROKE COMBUSTION ENGINE [patent_app_type] => utility [patent_app_number] => 17/029596 [patent_app_country] => US [patent_app_date] => 2020-09-23 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 5959 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -18 [patent_words_short_claim] => 112 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17029596 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/029596
PROCESS FOR OPERATING A SINGLE-STROKE COMBUSTION ENGINE Sep 22, 2020 Abandoned
Array ( [id] => 17891188 [patent_doc_number] => 11454147 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2022-09-27 [patent_title] => Internal combustion engine with purge system [patent_app_type] => utility [patent_app_number] => 17/026770 [patent_app_country] => US [patent_app_date] => 2020-09-21 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 7 [patent_figures_cnt] => 7 [patent_no_of_words] => 4247 [patent_no_of_claims] => 16 [patent_no_of_ind_claims] => 3 [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] => 17026770 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/026770
Internal combustion engine with purge system Sep 20, 2020 Issued
Array ( [id] => 17588226 [patent_doc_number] => 11326486 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2022-05-10 [patent_title] => Methods and systems for a hybrid electric vehicle [patent_app_type] => utility [patent_app_number] => 17/023950 [patent_app_country] => US [patent_app_date] => 2020-09-17 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 6 [patent_figures_cnt] => 6 [patent_no_of_words] => 8755 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 82 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17023950 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/023950
Methods and systems for a hybrid electric vehicle Sep 16, 2020 Issued
Array ( [id] => 16712690 [patent_doc_number] => 20210079837 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2021-03-18 [patent_title] => MACHINE WITH CONFIGURABLE POWER SYSTEM [patent_app_type] => utility [patent_app_number] => 17/022735 [patent_app_country] => US [patent_app_date] => 2020-09-16 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 6045 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -18 [patent_words_short_claim] => 95 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17022735 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/022735
Machine with configurable power system Sep 15, 2020 Issued
Array ( [id] => 17983621 [patent_doc_number] => 20220349657 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2022-11-03 [patent_title] => HEAT EXCHANGER [patent_app_type] => utility [patent_app_number] => 17/760915 [patent_app_country] => US [patent_app_date] => 2020-09-08 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 6053 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -14 [patent_words_short_claim] => 97 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17760915 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/760915
Heat exchanger Sep 7, 2020 Issued
Array ( [id] => 18029451 [patent_doc_number] => 11512628 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2022-11-29 [patent_title] => Transmission device of an engine, particularly for an engine with variable compression rate and/or variable displacement [patent_app_type] => utility [patent_app_number] => 16/996199 [patent_app_country] => US [patent_app_date] => 2020-08-18 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 9 [patent_figures_cnt] => 13 [patent_no_of_words] => 6751 [patent_no_of_claims] => 8 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 310 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16996199 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/996199
Transmission device of an engine, particularly for an engine with variable compression rate and/or variable displacement Aug 17, 2020 Issued
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