Search

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 numberTitle of the applicationFiling DateStatus
Array ( [id] => 19847453 [patent_doc_number] => 20250092804 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-03-20 [patent_title] => CDA LIFTER WITH HYDRAULIC CONTROL FEED FROM OUTSIDE THE ENGINE BLOCK [patent_app_type] => utility [patent_app_number] => 18/962882 [patent_app_country] => US [patent_app_date] => 2024-11-27 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 3941 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -18 [patent_words_short_claim] => 91 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18962882 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/962882
CDA lifter with hydraulic control feed from outside the engine block Nov 26, 2024 Issued
Array ( [id] => 20041726 [patent_doc_number] => 20250179948 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-06-05 [patent_title] => VARIABLE VALVE DEVICE [patent_app_type] => utility [patent_app_number] => 18/951001 [patent_app_country] => US [patent_app_date] => 2024-11-18 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 3204 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -6 [patent_words_short_claim] => 198 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18951001 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/951001
Variable valve device Nov 17, 2024 Issued
Array ( [id] => 20041726 [patent_doc_number] => 20250179948 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-06-05 [patent_title] => VARIABLE VALVE DEVICE [patent_app_type] => utility [patent_app_number] => 18/951001 [patent_app_country] => US [patent_app_date] => 2024-11-18 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 3204 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -6 [patent_words_short_claim] => 198 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18951001 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/951001
Variable valve device Nov 17, 2024 Issued
Array ( [id] => 20129710 [patent_doc_number] => 12372014 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2025-07-29 [patent_title] => Rocker arm assembly comprising swing bridge [patent_app_type] => utility [patent_app_number] => 18/951385 [patent_app_country] => US [patent_app_date] => 2024-11-18 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 12 [patent_figures_cnt] => 15 [patent_no_of_words] => 1236 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 231 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18951385 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/951385
Rocker arm assembly comprising swing bridge Nov 17, 2024 Issued
Array ( [id] => 20272561 [patent_doc_number] => 12442335 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2025-10-14 [patent_title] => Engine control device [patent_app_type] => utility [patent_app_number] => 18/945553 [patent_app_country] => US [patent_app_date] => 2024-11-13 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 6 [patent_no_of_words] => 0 [patent_no_of_claims] => 4 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 183 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18945553 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/945553
Engine control device Nov 12, 2024 Issued
Array ( [id] => 20272561 [patent_doc_number] => 12442335 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2025-10-14 [patent_title] => Engine control device [patent_app_type] => utility [patent_app_number] => 18/945553 [patent_app_country] => US [patent_app_date] => 2024-11-13 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 6 [patent_no_of_words] => 0 [patent_no_of_claims] => 4 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 183 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18945553 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/945553
Engine control device Nov 12, 2024 Issued
Array ( [id] => 20016669 [patent_doc_number] => 20250154891 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-05-15 [patent_title] => Method to Determine the Oxygen Storage Capacity of a Catalytic Converter of an Exhaust Gas System of an Internal Combustion Engine [patent_app_type] => utility [patent_app_number] => 18/946654 [patent_app_country] => US [patent_app_date] => 2024-11-13 [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] => -8 [patent_words_short_claim] => 238 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18946654 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/946654
Method to Determine the Oxygen Storage Capacity of a Catalytic Converter of an Exhaust Gas System of an Internal Combustion Engine Nov 12, 2024 Pending
Array ( [id] => 20241567 [patent_doc_number] => 12421876 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2025-09-23 [patent_title] => Rocker with switchable rollers for engine valvetrains [patent_app_type] => utility [patent_app_number] => 18/934706 [patent_app_country] => US [patent_app_date] => 2024-11-01 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 8 [patent_figures_cnt] => 8 [patent_no_of_words] => 2172 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 2 [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] => 18934706 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/934706
Rocker with switchable rollers for engine valvetrains Oct 31, 2024 Issued
Array ( [id] => 20116495 [patent_doc_number] => 12366189 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2025-07-22 [patent_title] => Marine vessel and exhaust manifold for marine vessel [patent_app_type] => utility [patent_app_number] => 18/931156 [patent_app_country] => US [patent_app_date] => 2024-10-30 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 5 [patent_figures_cnt] => 12 [patent_no_of_words] => 3371 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 190 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18931156 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/931156
Marine vessel and exhaust manifold for marine vessel Oct 29, 2024 Issued
Array ( [id] => 20157273 [patent_doc_number] => 12383874 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2025-08-12 [patent_title] => Exhaust aftertreatment assembly with a mixer having a mixing plate that is crescent shaped [patent_app_type] => utility [patent_app_number] => 18/909471 [patent_app_country] => US [patent_app_date] => 2024-10-08 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 56 [patent_figures_cnt] => 56 [patent_no_of_words] => 6899 [patent_no_of_claims] => 16 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 151 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18909471 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/909471
Exhaust aftertreatment assembly with a mixer having a mixing plate that is crescent shaped Oct 7, 2024 Issued
Array ( [id] => 19940858 [patent_doc_number] => 12312982 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2025-05-27 [patent_title] => Valve for an overhead cam engine and an overhead cam engine assembly [patent_app_type] => utility [patent_app_number] => 18/909436 [patent_app_country] => US [patent_app_date] => 2024-10-08 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 5 [patent_figures_cnt] => 5 [patent_no_of_words] => 0 [patent_no_of_claims] => 15 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 180 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18909436 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/909436
Valve for an overhead cam engine and an overhead cam engine assembly Oct 7, 2024 Issued
Array ( [id] => 19884625 [patent_doc_number] => 12270322 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2025-04-08 [patent_title] => System and method for actuating engine valves including a recompression relief valve event [patent_app_type] => utility [patent_app_number] => 18/906834 [patent_app_country] => US [patent_app_date] => 2024-10-04 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 14 [patent_figures_cnt] => 19 [patent_no_of_words] => 6721 [patent_no_of_claims] => 11 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 180 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18906834 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/906834
System and method for actuating engine valves including a recompression relief valve event Oct 3, 2024 Issued
Array ( [id] => 19877441 [patent_doc_number] => 20250109698 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-04-03 [patent_title] => VARIABLE VALVE DEVICE [patent_app_type] => utility [patent_app_number] => 18/894584 [patent_app_country] => US [patent_app_date] => 2024-09-24 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 9277 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -4 [patent_words_short_claim] => 181 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18894584 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/894584
Variable valve device Sep 23, 2024 Issued
Array ( [id] => 19984596 [patent_doc_number] => 20250122818 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-04-17 [patent_title] => VEHICLE [patent_app_type] => utility [patent_app_number] => 18/892656 [patent_app_country] => US [patent_app_date] => 2024-09-23 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 1067 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -1 [patent_words_short_claim] => 272 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18892656 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/892656
Vehicle Sep 22, 2024 Issued
Array ( [id] => 19923484 [patent_doc_number] => 12297756 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2025-05-13 [patent_title] => Variable valve device [patent_app_type] => utility [patent_app_number] => 18/891758 [patent_app_country] => US [patent_app_date] => 2024-09-20 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 11 [patent_figures_cnt] => 18 [patent_no_of_words] => 3556 [patent_no_of_claims] => 5 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 253 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18891758 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/891758
Variable valve device Sep 19, 2024 Issued
Array ( [id] => 19923483 [patent_doc_number] => 12297755 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2025-05-13 [patent_title] => System for synchronizing switching [patent_app_type] => utility [patent_app_number] => 18/883862 [patent_app_country] => US [patent_app_date] => 2024-09-12 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 5 [patent_figures_cnt] => 5 [patent_no_of_words] => 1247 [patent_no_of_claims] => 17 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 177 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18883862 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/883862
System for synchronizing switching Sep 11, 2024 Issued
Array ( [id] => 20050635 [patent_doc_number] => 20250188857 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-06-12 [patent_title] => THREE-WAY CATALYTIC CONVERTER AND DEVICE FOR PROCESSING TAIL GAS [patent_app_type] => utility [patent_app_number] => 18/830625 [patent_app_country] => US [patent_app_date] => 2024-09-11 [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] => 84 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18830625 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/830625
Three-way catalytic converter and device for processing tail gas Sep 10, 2024 Issued
Array ( [id] => 19636365 [patent_doc_number] => 20240414814 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-12-12 [patent_title] => ELECTRICAL HEATERS FOR EXHAUST AFTERTREATMENT SYSTEMS AND ASSEMBLIES [patent_app_type] => utility [patent_app_number] => 18/806943 [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] => 6745 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -19 [patent_words_short_claim] => 154 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18806943 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/806943
Electrical heaters for exhaust aftertreatment systems and assemblies Aug 15, 2024 Issued
Array ( [id] => 19793847 [patent_doc_number] => 12234784 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2025-02-25 [patent_title] => Methods and systems for verifying oxygen sensor connections [patent_app_type] => utility [patent_app_number] => 18/793568 [patent_app_country] => US [patent_app_date] => 2024-08-02 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 6 [patent_figures_cnt] => 6 [patent_no_of_words] => 8928 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 178 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18793568 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/793568
Methods and systems for verifying oxygen sensor connections Aug 1, 2024 Issued
Array ( [id] => 19910716 [patent_doc_number] => 12286920 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2025-04-29 [patent_title] => System and method for detecting a failed nitrogen oxide sensor [patent_app_type] => utility [patent_app_number] => 18/778574 [patent_app_country] => US [patent_app_date] => 2024-07-19 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 5 [patent_figures_cnt] => 5 [patent_no_of_words] => 0 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 165 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18778574 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/778574
System and method for detecting a failed nitrogen oxide sensor Jul 18, 2024 Issued
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