Search

David J Walczak

Examiner (ID: 8918, Phone: (571)272-4895 , Office: P/3754 )

Most Active Art Unit
3754
Art Unit(s)
3105, 2403, 2899, 3754, 3751, 2832
Total Applications
4681
Issued Applications
3650
Pending Applications
254
Abandoned Applications
819

Applications

Application numberTitle of the applicationFiling DateStatus
Array ( [id] => 19258577 [patent_doc_number] => 12018625 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2024-06-25 [patent_title] => Methods and systems for an evaporative emission system [patent_app_type] => utility [patent_app_number] => 18/304885 [patent_app_country] => US [patent_app_date] => 2023-04-21 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 7 [patent_figures_cnt] => 7 [patent_no_of_words] => 9863 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 49 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18304885 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/304885
Methods and systems for an evaporative emission system Apr 20, 2023 Issued
Array ( [id] => 20077111 [patent_doc_number] => 12351154 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2025-07-08 [patent_title] => Brake system and vehicle having the same [patent_app_type] => utility [patent_app_number] => 18/136949 [patent_app_country] => US [patent_app_date] => 2023-04-20 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 7 [patent_figures_cnt] => 8 [patent_no_of_words] => 6727 [patent_no_of_claims] => 15 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 289 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18136949 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/136949
Brake system and vehicle having the same Apr 19, 2023 Issued
Array ( [id] => 18582414 [patent_doc_number] => 20230264669 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-08-24 [patent_title] => Electropneumatic device with a protective valve unit [patent_app_type] => utility [patent_app_number] => 18/303252 [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] => 8696 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -15 [patent_words_short_claim] => 152 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18303252 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/303252
Electropneumatic device with a protective valve unit Apr 18, 2023 Issued
Array ( [id] => 19856094 [patent_doc_number] => 12258919 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2025-03-25 [patent_title] => Marine propulsion device and marine vessel [patent_app_type] => utility [patent_app_number] => 18/301566 [patent_app_country] => US [patent_app_date] => 2023-04-17 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 5 [patent_figures_cnt] => 6 [patent_no_of_words] => 10509 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 206 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18301566 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/301566
Marine propulsion device and marine vessel Apr 16, 2023 Issued
Array ( [id] => 18693431 [patent_doc_number] => 20230323830 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-10-12 [patent_title] => METHOD FOR ADJUSTING A FUEL MASS TO BE INJECTED [patent_app_type] => utility [patent_app_number] => 18/295172 [patent_app_country] => US [patent_app_date] => 2023-04-03 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 4858 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -6 [patent_words_short_claim] => 140 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18295172 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/295172
Method for adjusting a fuel mass to be injected Apr 2, 2023 Issued
Array ( [id] => 18708624 [patent_doc_number] => 20230331210 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-10-19 [patent_title] => SYSTEMS AND METHODS FOR CONTROLLING VEHICLE BRAKE SYSTEM COMPRESSORS [patent_app_type] => utility [patent_app_number] => 18/194798 [patent_app_country] => US [patent_app_date] => 2023-04-03 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 12871 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 90 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18194798 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/194798
SYSTEMS AND METHODS FOR CONTROLLING VEHICLE BRAKE SYSTEM COMPRESSORS Apr 2, 2023 Pending
Array ( [id] => 18674468 [patent_doc_number] => 20230311977 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-10-05 [patent_title] => STEERING CONTROL DEVICE AND METHOD [patent_app_type] => utility [patent_app_number] => 18/127813 [patent_app_country] => US [patent_app_date] => 2023-03-29 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 4877 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -12 [patent_words_short_claim] => 85 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18127813 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/127813
Steering control device and method Mar 28, 2023 Issued
Array ( [id] => 18740373 [patent_doc_number] => 20230349350 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-11-02 [patent_title] => CONTROL APPARATUS FOR VEHICLE [patent_app_type] => utility [patent_app_number] => 18/191059 [patent_app_country] => US [patent_app_date] => 2023-03-28 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 7612 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -4 [patent_words_short_claim] => 214 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18191059 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/191059
Control apparatus for vehicle Mar 27, 2023 Issued
Array ( [id] => 20128722 [patent_doc_number] => 12371023 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2025-07-29 [patent_title] => Vehicle gear-shifting control apparatus [patent_app_type] => utility [patent_app_number] => 18/190543 [patent_app_country] => US [patent_app_date] => 2023-03-27 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 16 [patent_figures_cnt] => 16 [patent_no_of_words] => 11463 [patent_no_of_claims] => 8 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 258 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18190543 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/190543
Vehicle gear-shifting control apparatus Mar 26, 2023 Issued
Array ( [id] => 18674472 [patent_doc_number] => 20230311981 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-10-05 [patent_title] => METHOD FOR DETERMINING A REGULATED MANUAL TORQUE AND STEERING SYSTEM [patent_app_type] => utility [patent_app_number] => 18/189591 [patent_app_country] => US [patent_app_date] => 2023-03-24 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 3367 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -19 [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] => 18189591 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/189591
METHOD FOR DETERMINING A REGULATED MANUAL TORQUE AND STEERING SYSTEM Mar 23, 2023 Abandoned
Array ( [id] => 18806411 [patent_doc_number] => 20230380741 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-11-30 [patent_title] => DRIVER STATE DETERMINATION APPARATUS [patent_app_type] => utility [patent_app_number] => 18/189332 [patent_app_country] => US [patent_app_date] => 2023-03-24 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 4569 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -5 [patent_words_short_claim] => 172 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18189332 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/189332
Driver state determination apparatus Mar 23, 2023 Issued
Array ( [id] => 18658459 [patent_doc_number] => 20230304455 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-09-28 [patent_title] => METHOD FOR OPERATING A MULTIPLE DIRECT INJECTION INTERNAL COMBUSTION ENGINE AND MASS-BASED SWITCHING OF THE NUMBER OF INJECTIONS [patent_app_type] => utility [patent_app_number] => 18/124916 [patent_app_country] => US [patent_app_date] => 2023-03-22 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 9037 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -11 [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] => 18124916 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/124916
Method for operating a multiple direct injection internal combustion engine and mass-based switching of the number of injections Mar 21, 2023 Issued
Array ( [id] => 18658469 [patent_doc_number] => 20230304465 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-09-28 [patent_title] => METHOD TO CONTROL A ROAD VEHICLE PROVIDED WITH AN INTERNAL COMBUSTION ENGINE DURING A GEAR SHIFT [patent_app_type] => utility [patent_app_number] => 18/184169 [patent_app_country] => US [patent_app_date] => 2023-03-15 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 3817 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -10 [patent_words_short_claim] => 166 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18184169 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/184169
Method to control a road vehicle provided with an internal combustion engine during a gear shift Mar 14, 2023 Issued
Array ( [id] => 19491303 [patent_doc_number] => 12109993 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2024-10-08 [patent_title] => Vehicle control system and method [patent_app_type] => utility [patent_app_number] => 18/183128 [patent_app_country] => US [patent_app_date] => 2023-03-13 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 13 [patent_figures_cnt] => 18 [patent_no_of_words] => 14653 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 84 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18183128 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/183128
Vehicle control system and method Mar 12, 2023 Issued
Array ( [id] => 18862774 [patent_doc_number] => 20230417210 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-12-28 [patent_title] => IGNITION DEVICE FOR USE IN INTERNAL COMBUSTION ENGINE [patent_app_type] => utility [patent_app_number] => 18/175827 [patent_app_country] => US [patent_app_date] => 2023-02-28 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 5892 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -4 [patent_words_short_claim] => 89 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18175827 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/175827
IGNITION DEVICE FOR USE IN INTERNAL COMBUSTION ENGINE Feb 27, 2023 Abandoned
Array ( [id] => 18567808 [patent_doc_number] => 20230258143 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-08-17 [patent_title] => FULL AGNOSTIC COMPRESSION IGNITION ENGINE [patent_app_type] => utility [patent_app_number] => 18/114659 [patent_app_country] => US [patent_app_date] => 2023-02-27 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 15330 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -27 [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] => 18114659 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/114659
Full agnostic compression ignition engine Feb 26, 2023 Issued
Array ( [id] => 18485659 [patent_doc_number] => 20230212997 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-07-06 [patent_title] => FUEL AGNOSTIC COMPRESSION IGNITION ENGINE [patent_app_type] => utility [patent_app_number] => 18/114455 [patent_app_country] => US [patent_app_date] => 2023-02-27 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 15323 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -27 [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] => 18114455 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/114455
Fuel agnostic compression ignition engine Feb 26, 2023 Issued
Array ( [id] => 19800021 [patent_doc_number] => 20250065946 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-02-27 [patent_title] => STEERING OPERATION CONTROL APPARATUS, STEERING OPERATION CONTROL METHOD, AND STEERING SYSTEM [patent_app_type] => utility [patent_app_number] => 18/724844 [patent_app_country] => US [patent_app_date] => 2023-02-24 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 10273 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -7 [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] => 18724844 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/724844
STEERING OPERATION CONTROL APPARATUS, STEERING OPERATION CONTROL METHOD, AND STEERING SYSTEM Feb 23, 2023 Pending
Array ( [id] => 19794206 [patent_doc_number] => 12235146 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2025-02-25 [patent_title] => Method and device for ascertaining the fluid injection quantity of an injection system [patent_app_type] => utility [patent_app_number] => 18/171420 [patent_app_country] => US [patent_app_date] => 2023-02-20 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 7 [patent_no_of_words] => 4612 [patent_no_of_claims] => 16 [patent_no_of_ind_claims] => 4 [patent_words_short_claim] => 210 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18171420 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/171420
Method and device for ascertaining the fluid injection quantity of an injection system Feb 19, 2023 Issued
Array ( [id] => 19382168 [patent_doc_number] => 20240272038 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-08-15 [patent_title] => SYSTEM AND METHOD FOR DIAGNOSING AN EXHAUST GAS SENSOR [patent_app_type] => utility [patent_app_number] => 18/168301 [patent_app_country] => US [patent_app_date] => 2023-02-13 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 10370 [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] => 18168301 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/168301
System and method for diagnosing an exhaust gas sensor Feb 12, 2023 Issued
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