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] => 19061125 [patent_doc_number] => 11940350 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2024-03-26 [patent_title] => Method and device for diagnosing at least one exhaust gas sensor of an internal combustion engine disposed in an exhaust duct [patent_app_type] => utility [patent_app_number] => 17/972917 [patent_app_country] => US [patent_app_date] => 2022-10-25 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 3 [patent_no_of_words] => 3445 [patent_no_of_claims] => 14 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 72 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17972917 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/972917
Method and device for diagnosing at least one exhaust gas sensor of an internal combustion engine disposed in an exhaust duct Oct 24, 2022 Issued
Array ( [id] => 19077074 [patent_doc_number] => 11946429 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2024-04-02 [patent_title] => Spark ignited single cylinder engine derate for overheat [patent_app_type] => utility [patent_app_number] => 17/967956 [patent_app_country] => US [patent_app_date] => 2022-10-18 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 8 [patent_figures_cnt] => 8 [patent_no_of_words] => 6229 [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] => 17967956 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/967956
Spark ignited single cylinder engine derate for overheat Oct 17, 2022 Issued
Array ( [id] => 18436892 [patent_doc_number] => 20230184186 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-06-15 [patent_title] => CONTROLLER FOR INTERNAL COMBUSTION ENGINE [patent_app_type] => utility [patent_app_number] => 17/967602 [patent_app_country] => US [patent_app_date] => 2022-10-17 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 13446 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -8 [patent_words_short_claim] => 219 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17967602 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/967602
CONTROLLER FOR INTERNAL COMBUSTION ENGINE Oct 16, 2022 Abandoned
Array ( [id] => 19181549 [patent_doc_number] => 11988133 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2024-05-21 [patent_title] => Machine with configurable power system [patent_app_type] => utility [patent_app_number] => 17/967290 [patent_app_country] => US [patent_app_date] => 2022-10-17 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 3 [patent_no_of_words] => 6079 [patent_no_of_claims] => 22 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 211 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17967290 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/967290
Machine with configurable power system Oct 16, 2022 Issued
Array ( [id] => 19745070 [patent_doc_number] => 20250033635 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-01-30 [patent_title] => METHOD FOR CHECKING THE PLAUSIBILITY OF AT LEAST ONE PORTION OF A DRIVING TRAJECTORY FOR A VEHICLE [patent_app_type] => utility [patent_app_number] => 18/708968 [patent_app_country] => US [patent_app_date] => 2022-10-06 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 14207 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -8 [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] => 18708968 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/708968
METHOD FOR CHECKING THE PLAUSIBILITY OF AT LEAST ONE PORTION OF A DRIVING TRAJECTORY FOR A VEHICLE Oct 5, 2022 Pending
Array ( [id] => 18297751 [patent_doc_number] => 20230107437 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-04-06 [patent_title] => METHOD AND APPARATUS FOR CONTROLLING A LOCKING SYSTEM OF A MOTOR VEHICLE COMPRISING A DEVICE FOR PARTIALLY AUTONOMOUS PARKING [patent_app_type] => utility [patent_app_number] => 17/937682 [patent_app_country] => US [patent_app_date] => 2022-10-03 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 4335 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -14 [patent_words_short_claim] => 113 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17937682 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/937682
Method and apparatus for controlling a locking system of a motor vehicle comprising a device for partially autonomous parking Oct 2, 2022 Issued
Array ( [id] => 19658070 [patent_doc_number] => 20240425135 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-12-26 [patent_title] => CONTROLLER AND CONTROL METHOD [patent_app_type] => utility [patent_app_number] => 18/691124 [patent_app_country] => US [patent_app_date] => 2022-09-28 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 11089 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -13 [patent_words_short_claim] => 123 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18691124 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/691124
CONTROLLER AND CONTROL METHOD Sep 27, 2022 Pending
Array ( [id] => 18287509 [patent_doc_number] => 20230102981 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-03-30 [patent_title] => HYDROGEN DISCHARGE CONTROL SYSTEM AND HYDROGEN DISCHARGE CONTROL METHOD FOR HYDROGEN ENGINE VEHICLE [patent_app_type] => utility [patent_app_number] => 17/950558 [patent_app_country] => US [patent_app_date] => 2022-09-22 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 4686 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -2 [patent_words_short_claim] => 150 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17950558 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/950558
Hydrogen discharge control system and hydrogen discharge control method for hydrogen engine vehicle Sep 21, 2022 Issued
Array ( [id] => 18267523 [patent_doc_number] => 20230088765 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-03-23 [patent_title] => ENGINE SYSTEM AND GAS FUEL COMBUSTION METHOD [patent_app_type] => utility [patent_app_number] => 17/949567 [patent_app_country] => US [patent_app_date] => 2022-09-21 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 11347 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -13 [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] => 17949567 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/949567
Engine system and gas fuel combustion method Sep 20, 2022 Issued
Array ( [id] => 18122312 [patent_doc_number] => 20230007914 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-01-12 [patent_title] => SAFETY DEVICE AND METHOD FOR AVOIDANCE OF DOORING INJURIES [patent_app_type] => utility [patent_app_number] => 17/948261 [patent_app_country] => US [patent_app_date] => 2022-09-20 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 9674 [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] => 17948261 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/948261
SAFETY DEVICE AND METHOD FOR AVOIDANCE OF DOORING INJURIES Sep 19, 2022 Pending
Array ( [id] => 19801641 [patent_doc_number] => 20250067566 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-02-27 [patent_title] => METHOD FOR GENERATING A RESOURCE-EFFICIENT TRACK FOR A VEHICLE IN OPERATION MOVING ALONG A HIGHWAY [patent_app_type] => utility [patent_app_number] => 18/720637 [patent_app_country] => US [patent_app_date] => 2022-09-18 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 63905 [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] => 18720637 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/720637
METHOD FOR GENERATING A RESOURCE-EFFICIENT TRACK FOR A VEHICLE IN OPERATION MOVING ALONG A HIGHWAY Sep 17, 2022 Pending
Array ( [id] => 18910799 [patent_doc_number] => 11873772 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2024-01-16 [patent_title] => Dual fuel engine system and method for controlling dual fuel engine system [patent_app_type] => utility [patent_app_number] => 17/944910 [patent_app_country] => US [patent_app_date] => 2022-09-14 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 9 [patent_figures_cnt] => 9 [patent_no_of_words] => 13889 [patent_no_of_claims] => 15 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 154 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17944910 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/944910
Dual fuel engine system and method for controlling dual fuel engine system Sep 13, 2022 Issued
Array ( [id] => 18272396 [patent_doc_number] => 20230093638 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-03-23 [patent_title] => METHOD AND DEVICE FOR CONTROLLING FUEL INJECTION TO ENGINE [patent_app_type] => utility [patent_app_number] => 17/938913 [patent_app_country] => US [patent_app_date] => 2022-09-06 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 2676 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -15 [patent_words_short_claim] => 127 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17938913 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/938913
Method and device for controlling fuel injection to engine Sep 5, 2022 Issued
Array ( [id] => 18560364 [patent_doc_number] => 11725600 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2023-08-15 [patent_title] => Method of controlling opening speed of purge valve according to purge gas concentration and active purge system thereof [patent_app_type] => utility [patent_app_number] => 17/899333 [patent_app_country] => US [patent_app_date] => 2022-08-30 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 3 [patent_no_of_words] => 6353 [patent_no_of_claims] => 13 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 64 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17899333 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/899333
Method of controlling opening speed of purge valve according to purge gas concentration and active purge system thereof Aug 29, 2022 Issued
Array ( [id] => 18329807 [patent_doc_number] => 11635038 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2023-04-25 [patent_title] => Method of improving accuracy of purge fuel amount and active purge system therefor [patent_app_type] => utility [patent_app_number] => 17/899332 [patent_app_country] => US [patent_app_date] => 2022-08-30 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 5 [patent_figures_cnt] => 6 [patent_no_of_words] => 7125 [patent_no_of_claims] => 18 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 64 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17899332 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/899332
Method of improving accuracy of purge fuel amount and active purge system therefor Aug 29, 2022 Issued
Array ( [id] => 18337280 [patent_doc_number] => 20230129229 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-04-27 [patent_title] => CONTROL DEVICE OF VEHICLE [patent_app_type] => utility [patent_app_number] => 17/822908 [patent_app_country] => US [patent_app_date] => 2022-08-29 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 3333 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -3 [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] => 17822908 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/822908
Control device of vehicle Aug 28, 2022 Issued
Array ( [id] => 19512808 [patent_doc_number] => 20240344494 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-10-17 [patent_title] => IMPROVEMENT TO LIQUID FLUID INJECTION PUMPS [patent_app_type] => utility [patent_app_number] => 18/688454 [patent_app_country] => US [patent_app_date] => 2022-08-29 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 2586 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -7 [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] => 18688454 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/688454
Liquid fluid injection pumps Aug 28, 2022 Issued
Array ( [id] => 18093938 [patent_doc_number] => 20220412279 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2022-12-29 [patent_title] => METHOD FOR THE MODEL-BASED OPEN-LOOP AND CLOSED-LOOP CONTROL OF AN INTERNAL COMBUSTION ENGINE [patent_app_type] => utility [patent_app_number] => 17/896573 [patent_app_country] => US [patent_app_date] => 2022-08-26 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 4961 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -6 [patent_words_short_claim] => 72 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17896573 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/896573
Method for the model-based open-loop and closed-loop control of an internal combustion engine Aug 25, 2022 Issued
Array ( [id] => 18036978 [patent_doc_number] => 20220381193 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2022-12-01 [patent_title] => SYSTEMS AND METHODS FOR ULTRA-LOW NOx COLD START WARMUP CONTROL AND FAULT DIAGNOSIS [patent_app_type] => utility [patent_app_number] => 17/884473 [patent_app_country] => US [patent_app_date] => 2022-08-09 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 9745 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [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] => 17884473 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/884473
Systems and methods for ultra-low NOx cold start warmup control and fault diagnosis Aug 8, 2022 Issued
Array ( [id] => 20342553 [patent_doc_number] => 12466274 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2025-11-11 [patent_title] => Locomotive wireless multi-heading remote distributed power traction operation control system, and multi-heading locomotive [patent_app_type] => utility [patent_app_number] => 18/577240 [patent_app_country] => US [patent_app_date] => 2022-08-01 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 6 [patent_figures_cnt] => 6 [patent_no_of_words] => 0 [patent_no_of_claims] => 8 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 305 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18577240 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/577240
Locomotive wireless multi-heading remote distributed power traction operation control system, and multi-heading locomotive Jul 31, 2022 Issued
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