
Kevin H. Sprenger
Examiner (ID: 6769, Phone: (571)272-9424 , Office: P/2838 )
| Most Active Art Unit | 2838 |
| Art Unit(s) | 2838 |
| Total Applications | 293 |
| Issued Applications | 246 |
| Pending Applications | 0 |
| Abandoned Applications | 48 |
Applications
| Application number | Title of the application | Filing Date | Status |
|---|---|---|---|
Array
(
[id] => 18831442
[patent_doc_number] => 20230399969
[patent_country] => US
[patent_kind] => A1
[patent_issue_date] => 2023-12-14
[patent_title] => CATALYST DEVICE
[patent_app_type] => utility
[patent_app_number] => 18/329579
[patent_app_country] => US
[patent_app_date] => 2023-06-06
[patent_effective_date] => 0000-00-00
[patent_drawing_sheets_cnt] => 0
[patent_figures_cnt] => 0
[patent_no_of_words] => 4102
[patent_no_of_claims] => 0
[patent_no_of_ind_claims] => -3
[patent_words_short_claim] => 185
[patent_maintenance] => 1
[patent_no_of_assignments] => 0
[patent_current_assignee] =>[type] => publication
[pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18329579
[rel_patent_id] =>[rel_patent_doc_number] =>) 18/329579 | Catalyst device | Jun 5, 2023 | Issued |
Array
(
[id] => 18964716
[patent_doc_number] => 11898472
[patent_country] => US
[patent_kind] => B1
[patent_issue_date] => 2024-02-13
[patent_title] => Hydraulically lockable variable camshaft phaser
[patent_app_type] => utility
[patent_app_number] => 18/206366
[patent_app_country] => US
[patent_app_date] => 2023-06-06
[patent_effective_date] => 0000-00-00
[patent_drawing_sheets_cnt] => 5
[patent_figures_cnt] => 13
[patent_no_of_words] => 3324
[patent_no_of_claims] => 19
[patent_no_of_ind_claims] => 1
[patent_words_short_claim] => 194
[patent_maintenance] => 1
[patent_no_of_assignments] => 0
[patent_current_assignee] =>[type] => patent
[pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18206366
[rel_patent_id] =>[rel_patent_doc_number] =>) 18/206366 | Hydraulically lockable variable camshaft phaser | Jun 5, 2023 | Issued |
Array
(
[id] => 18964754
[patent_doc_number] => 11898510
[patent_country] => US
[patent_kind] => B1
[patent_issue_date] => 2024-02-13
[patent_title] => Filter regeneration control device
[patent_app_type] => utility
[patent_app_number] => 18/325116
[patent_app_country] => US
[patent_app_date] => 2023-05-30
[patent_effective_date] => 0000-00-00
[patent_drawing_sheets_cnt] => 3
[patent_figures_cnt] => 3
[patent_no_of_words] => 3502
[patent_no_of_claims] => 3
[patent_no_of_ind_claims] => 1
[patent_words_short_claim] => 163
[patent_maintenance] => 1
[patent_no_of_assignments] => 0
[patent_current_assignee] =>[type] => patent
[pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18325116
[rel_patent_id] =>[rel_patent_doc_number] =>) 18/325116 | Filter regeneration control device | May 29, 2023 | Issued |
Array
(
[id] => 19083692
[patent_doc_number] => 20240110493
[patent_country] => US
[patent_kind] => A1
[patent_issue_date] => 2024-04-04
[patent_title] => ROLLER PIN DECOUPLING TYPE CDA SYSTEM
[patent_app_type] => utility
[patent_app_number] => 18/325522
[patent_app_country] => US
[patent_app_date] => 2023-05-30
[patent_effective_date] => 0000-00-00
[patent_drawing_sheets_cnt] => 0
[patent_figures_cnt] => 0
[patent_no_of_words] => 5425
[patent_no_of_claims] => 0
[patent_no_of_ind_claims] => -15
[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] => 18325522
[rel_patent_id] =>[rel_patent_doc_number] =>) 18/325522 | ROLLER PIN DECOUPLING TYPE CDA SYSTEM | May 29, 2023 | Abandoned |
Array
(
[id] => 18948649
[patent_doc_number] => 11891935
[patent_country] => US
[patent_kind] => B1
[patent_issue_date] => 2024-02-06
[patent_title] => Exhaust gas purification apparatus
[patent_app_type] => utility
[patent_app_number] => 18/322590
[patent_app_country] => US
[patent_app_date] => 2023-05-24
[patent_effective_date] => 0000-00-00
[patent_drawing_sheets_cnt] => 5
[patent_figures_cnt] => 6
[patent_no_of_words] => 6846
[patent_no_of_claims] => 19
[patent_no_of_ind_claims] => 1
[patent_words_short_claim] => 170
[patent_maintenance] => 1
[patent_no_of_assignments] => 0
[patent_current_assignee] =>[type] => patent
[pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18322590
[rel_patent_id] =>[rel_patent_doc_number] =>) 18/322590 | Exhaust gas purification apparatus | May 23, 2023 | Issued |
Array
(
[id] => 18650204
[patent_doc_number] => 20230296036
[patent_country] => US
[patent_kind] => A1
[patent_issue_date] => 2023-09-21
[patent_title] => CYLINDER DEACTIVATION AND ENGINE BRAKE MECHANISM FOR TYPE III CENTER PIVOT VALVETRAINS
[patent_app_type] => utility
[patent_app_number] => 18/318884
[patent_app_country] => US
[patent_app_date] => 2023-05-17
[patent_effective_date] => 0000-00-00
[patent_drawing_sheets_cnt] => 0
[patent_figures_cnt] => 0
[patent_no_of_words] => 5051
[patent_no_of_claims] => 0
[patent_no_of_ind_claims] => -9
[patent_words_short_claim] => 147
[patent_maintenance] => 1
[patent_no_of_assignments] => 0
[patent_current_assignee] =>[type] => publication
[pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18318884
[rel_patent_id] =>[rel_patent_doc_number] =>) 18/318884 | Cylinder deactivation and engine brake mechanism for type III center pivot valvetrains | May 16, 2023 | Issued |
Array
(
[id] => 18809351
[patent_doc_number] => 20230383686
[patent_country] => US
[patent_kind] => A1
[patent_issue_date] => 2023-11-30
[patent_title] => EXHAUST CATALYST MANAGEMENT APPARATUS TO BE APPLIED TO VEHICLE
[patent_app_type] => utility
[patent_app_number] => 18/318253
[patent_app_country] => US
[patent_app_date] => 2023-05-16
[patent_effective_date] => 0000-00-00
[patent_drawing_sheets_cnt] => 0
[patent_figures_cnt] => 0
[patent_no_of_words] => 16251
[patent_no_of_claims] => 0
[patent_no_of_ind_claims] => -15
[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] => 18318253
[rel_patent_id] =>[rel_patent_doc_number] =>) 18/318253 | Exhaust catalyst management apparatus to be applied to vehicle | May 15, 2023 | Issued |
Array
(
[id] => 18530617
[patent_doc_number] => 20230235687
[patent_country] => US
[patent_kind] => A1
[patent_issue_date] => 2023-07-27
[patent_title] => COMPACT ENGINE BRAKE WITH PRESSURE-CONTROL RESET
[patent_app_type] => utility
[patent_app_number] => 18/130087
[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] => 11664
[patent_no_of_claims] => 0
[patent_no_of_ind_claims] => -19
[patent_words_short_claim] => 374
[patent_maintenance] => 1
[patent_no_of_assignments] => 0
[patent_current_assignee] =>[type] => publication
[pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18130087
[rel_patent_id] =>[rel_patent_doc_number] =>) 18/130087 | COMPACT ENGINE BRAKE WITH PRESSURE-CONTROL RESET | Apr 2, 2023 | Abandoned |
Array
(
[id] => 18676090
[patent_doc_number] => 20230313714
[patent_country] => US
[patent_kind] => A1
[patent_issue_date] => 2023-10-05
[patent_title] => SYSTEMS AND METHODS FOR LASH ADJUSTMENT AND CYLINDER DEACTIVATION FOR INTERNAL COMBUSTION ENGINES
[patent_app_type] => utility
[patent_app_number] => 18/190454
[patent_app_country] => US
[patent_app_date] => 2023-03-27
[patent_effective_date] => 0000-00-00
[patent_drawing_sheets_cnt] => 0
[patent_figures_cnt] => 0
[patent_no_of_words] => 7057
[patent_no_of_claims] => 0
[patent_no_of_ind_claims] => -18
[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] => 18190454
[rel_patent_id] =>[rel_patent_doc_number] =>) 18/190454 | SYSTEMS AND METHODS FOR LASH ADJUSTMENT AND CYLINDER DEACTIVATION FOR INTERNAL COMBUSTION ENGINES | Mar 26, 2023 | Abandoned |
Array
(
[id] => 18871730
[patent_doc_number] => 11859520
[patent_country] => US
[patent_kind] => B1
[patent_issue_date] => 2024-01-02
[patent_title] => Extended phaser range of authority for reduced effective compression ratio during engine starting
[patent_app_type] => utility
[patent_app_number] => 18/189579
[patent_app_country] => US
[patent_app_date] => 2023-03-24
[patent_effective_date] => 0000-00-00
[patent_drawing_sheets_cnt] => 5
[patent_figures_cnt] => 5
[patent_no_of_words] => 2825
[patent_no_of_claims] => 16
[patent_no_of_ind_claims] => 2
[patent_words_short_claim] => 102
[patent_maintenance] => 1
[patent_no_of_assignments] => 0
[patent_current_assignee] =>[type] => patent
[pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18189579
[rel_patent_id] =>[rel_patent_doc_number] =>) 18/189579 | Extended phaser range of authority for reduced effective compression ratio during engine starting | Mar 23, 2023 | Issued |
Array
(
[id] => 18567805
[patent_doc_number] => 20230258140
[patent_country] => US
[patent_kind] => A1
[patent_issue_date] => 2023-08-17
[patent_title] => Verfahren, Recheneinheit und Computerprogramm zum Betreiben einer Brennkraftmaschine
[patent_app_type] => utility
[patent_app_number] => 18/170318
[patent_app_country] => US
[patent_app_date] => 2023-02-16
[patent_effective_date] => 0000-00-00
[patent_drawing_sheets_cnt] => 0
[patent_figures_cnt] => 0
[patent_no_of_words] => 5062
[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] => 18170318
[rel_patent_id] =>[rel_patent_doc_number] =>) 18/170318 | Method, computing unit, and computer program for operating an internal-combustion engine | Feb 15, 2023 | Issued |
Array
(
[id] => 20008207
[patent_doc_number] => 20250146429
[patent_country] => US
[patent_kind] => A1
[patent_issue_date] => 2025-05-08
[patent_title] => A PHASE CHANGE SYSTEM FOR OPENING AND/OR CLOSING INTAKE VALVES
[patent_app_type] => utility
[patent_app_number] => 18/838299
[patent_app_country] => US
[patent_app_date] => 2023-02-14
[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] => -11
[patent_words_short_claim] => 374
[patent_maintenance] => 1
[patent_no_of_assignments] => 0
[patent_current_assignee] =>[type] => publication
[pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18838299
[rel_patent_id] =>[rel_patent_doc_number] =>) 18/838299 | A PHASE CHANGE SYSTEM FOR OPENING AND/OR CLOSING INTAKE VALVES | Feb 13, 2023 | Pending |
Array
(
[id] => 18552730
[patent_doc_number] => 20230250741
[patent_country] => US
[patent_kind] => A1
[patent_issue_date] => 2023-08-10
[patent_title] => VARIABLE VALVE TIMING SYSTEM
[patent_app_type] => utility
[patent_app_number] => 18/157412
[patent_app_country] => US
[patent_app_date] => 2023-01-20
[patent_effective_date] => 0000-00-00
[patent_drawing_sheets_cnt] => 0
[patent_figures_cnt] => 0
[patent_no_of_words] => 10966
[patent_no_of_claims] => 0
[patent_no_of_ind_claims] => -5
[patent_words_short_claim] => 185
[patent_maintenance] => 1
[patent_no_of_assignments] => 0
[patent_current_assignee] =>[type] => publication
[pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18157412
[rel_patent_id] =>[rel_patent_doc_number] =>) 18/157412 | Variable valve timing system | Jan 19, 2023 | Issued |
Array
(
[id] => 18666872
[patent_doc_number] => 11773755
[patent_country] => US
[patent_kind] => B2
[patent_issue_date] => 2023-10-03
[patent_title] => Variable valve timing system
[patent_app_type] => utility
[patent_app_number] => 18/157005
[patent_app_country] => US
[patent_app_date] => 2023-01-19
[patent_effective_date] => 0000-00-00
[patent_drawing_sheets_cnt] => 11
[patent_figures_cnt] => 14
[patent_no_of_words] => 11607
[patent_no_of_claims] => 6
[patent_no_of_ind_claims] => 1
[patent_words_short_claim] => 214
[patent_maintenance] => 1
[patent_no_of_assignments] => 0
[patent_current_assignee] =>[type] => patent
[pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18157005
[rel_patent_id] =>[rel_patent_doc_number] =>) 18/157005 | Variable valve timing system | Jan 18, 2023 | Issued |
Array
(
[id] => 19166350
[patent_doc_number] => 11982244
[patent_country] => US
[patent_kind] => B1
[patent_issue_date] => 2024-05-14
[patent_title] => System and method for in-cylinder dosing (ICD) for an engine
[patent_app_type] => utility
[patent_app_number] => 18/082608
[patent_app_country] => US
[patent_app_date] => 2022-12-16
[patent_effective_date] => 0000-00-00
[patent_drawing_sheets_cnt] => 13
[patent_figures_cnt] => 16
[patent_no_of_words] => 12541
[patent_no_of_claims] => 20
[patent_no_of_ind_claims] => 3
[patent_words_short_claim] => 203
[patent_maintenance] => 1
[patent_no_of_assignments] => 0
[patent_current_assignee] =>[type] => patent
[pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18082608
[rel_patent_id] =>[rel_patent_doc_number] =>) 18/082608 | System and method for in-cylinder dosing (ICD) for an engine | Dec 15, 2022 | Issued |
Array
(
[id] => 18392105
[patent_doc_number] => 20230160324
[patent_country] => US
[patent_kind] => A1
[patent_issue_date] => 2023-05-25
[patent_title] => VALVE TRAIN ASSEMBLY
[patent_app_type] => utility
[patent_app_number] => 18/064497
[patent_app_country] => US
[patent_app_date] => 2022-12-12
[patent_effective_date] => 0000-00-00
[patent_drawing_sheets_cnt] => 0
[patent_figures_cnt] => 0
[patent_no_of_words] => 5170
[patent_no_of_claims] => 0
[patent_no_of_ind_claims] => -6
[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] => 18064497
[rel_patent_id] =>[rel_patent_doc_number] =>) 18/064497 | Valve train assembly | Dec 11, 2022 | Issued |
Array
(
[id] => 18392107
[patent_doc_number] => 20230160326
[patent_country] => US
[patent_kind] => A1
[patent_issue_date] => 2023-05-25
[patent_title] => Method and Apparatus to Enhance Fractional Efficiency of Diesel and Gasoline Particulate Filters
[patent_app_type] => utility
[patent_app_number] => 18/075031
[patent_app_country] => US
[patent_app_date] => 2022-12-05
[patent_effective_date] => 0000-00-00
[patent_drawing_sheets_cnt] => 0
[patent_figures_cnt] => 0
[patent_no_of_words] => 5829
[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] => 18075031
[rel_patent_id] =>[rel_patent_doc_number] =>) 18/075031 | Method and apparatus to enhance fractional efficiency of diesel and gasoline particulate filters | Dec 4, 2022 | Issued |
Array
(
[id] => 19898302
[patent_doc_number] => 12276213
[patent_country] => US
[patent_kind] => B2
[patent_issue_date] => 2025-04-15
[patent_title] => Valve train for an internal combustion engine, in particular of a motor vehicle, and internal combustion engine
[patent_app_type] => utility
[patent_app_number] => 18/711993
[patent_app_country] => US
[patent_app_date] => 2022-11-21
[patent_effective_date] => 0000-00-00
[patent_drawing_sheets_cnt] => 3
[patent_figures_cnt] => 3
[patent_no_of_words] => 1273
[patent_no_of_claims] => 7
[patent_no_of_ind_claims] => 1
[patent_words_short_claim] => 170
[patent_maintenance] => 1
[patent_no_of_assignments] => 0
[patent_current_assignee] =>[type] => patent
[pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18711993
[rel_patent_id] =>[rel_patent_doc_number] =>) 18/711993 | Valve train for an internal combustion engine, in particular of a motor vehicle, and internal combustion engine | Nov 20, 2022 | Issued |
Array
(
[id] => 20158810
[patent_doc_number] => 12385427
[patent_country] => US
[patent_kind] => B2
[patent_issue_date] => 2025-08-12
[patent_title] => Vehicle exhaust systems
[patent_app_type] => utility
[patent_app_number] => 18/716622
[patent_app_country] => US
[patent_app_date] => 2022-11-15
[patent_effective_date] => 0000-00-00
[patent_drawing_sheets_cnt] => 5
[patent_figures_cnt] => 10
[patent_no_of_words] => 0
[patent_no_of_claims] => 12
[patent_no_of_ind_claims] => 1
[patent_words_short_claim] => 171
[patent_maintenance] => 1
[patent_no_of_assignments] => 0
[patent_current_assignee] =>[type] => patent
[pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18716622
[rel_patent_id] =>[rel_patent_doc_number] =>) 18/716622 | Vehicle exhaust systems | Nov 14, 2022 | Issued |
Array
(
[id] => 20158810
[patent_doc_number] => 12385427
[patent_country] => US
[patent_kind] => B2
[patent_issue_date] => 2025-08-12
[patent_title] => Vehicle exhaust systems
[patent_app_type] => utility
[patent_app_number] => 18/716622
[patent_app_country] => US
[patent_app_date] => 2022-11-15
[patent_effective_date] => 0000-00-00
[patent_drawing_sheets_cnt] => 5
[patent_figures_cnt] => 10
[patent_no_of_words] => 0
[patent_no_of_claims] => 12
[patent_no_of_ind_claims] => 1
[patent_words_short_claim] => 171
[patent_maintenance] => 1
[patent_no_of_assignments] => 0
[patent_current_assignee] =>[type] => patent
[pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18716622
[rel_patent_id] =>[rel_patent_doc_number] =>) 18/716622 | Vehicle exhaust systems | Nov 14, 2022 | Issued |