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] => 19779032 [patent_doc_number] => 12228056 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2025-02-18 [patent_title] => Active hydrocarbon trap for reduction of emissions from internal combustion engines using an electrically-heated catalyst [patent_app_type] => utility [patent_app_number] => 18/390839 [patent_app_country] => US [patent_app_date] => 2023-12-20 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 4 [patent_no_of_words] => 5914 [patent_no_of_claims] => 17 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 98 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18390839 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/390839
Active hydrocarbon trap for reduction of emissions from internal combustion engines using an electrically-heated catalyst Dec 19, 2023 Issued
Array ( [id] => 19390167 [patent_doc_number] => 20240280037 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-08-22 [patent_title] => VALVE ACTUATION SYSTEM COMPRISING ROCKER ASSEMBLIES SHARING AN OUTPUT ROCKER [patent_app_type] => utility [patent_app_number] => 18/542631 [patent_app_country] => US [patent_app_date] => 2023-12-16 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 6704 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -13 [patent_words_short_claim] => 261 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18542631 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/542631
Valve actuation system comprising rocker assemblies sharing an output rocker Dec 15, 2023 Issued
Array ( [id] => 19258551 [patent_doc_number] => 12018599 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2024-06-25 [patent_title] => Valve actuation system comprising rocker assemblies with one-way coupling therebetween [patent_app_type] => utility [patent_app_number] => 18/540611 [patent_app_country] => US [patent_app_date] => 2023-12-14 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 22 [patent_figures_cnt] => 22 [patent_no_of_words] => 10815 [patent_no_of_claims] => 26 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 292 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18540611 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/540611
Valve actuation system comprising rocker assemblies with one-way coupling therebetween Dec 13, 2023 Issued
Array ( [id] => 19492114 [patent_doc_number] => 12110813 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2024-10-08 [patent_title] => Concentric camshaft for variable valve timing and method of manufacturing by metal additive process and disintegrable barrier to preserve interstitial void spaces and method of removal [patent_app_type] => utility [patent_app_number] => 18/536301 [patent_app_country] => US [patent_app_date] => 2023-12-12 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 6 [patent_figures_cnt] => 6 [patent_no_of_words] => 9187 [patent_no_of_claims] => 19 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 333 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18536301 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/536301
Concentric camshaft for variable valve timing and method of manufacturing by metal additive process and disintegrable barrier to preserve interstitial void spaces and method of removal Dec 11, 2023 Issued
Array ( [id] => 19354643 [patent_doc_number] => 12055074 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2024-08-06 [patent_title] => Vehicle system [patent_app_type] => utility [patent_app_number] => 18/507667 [patent_app_country] => US [patent_app_date] => 2023-11-13 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 3 [patent_no_of_words] => 6176 [patent_no_of_claims] => 18 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 80 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18507667 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/507667
Vehicle system Nov 12, 2023 Issued
Array ( [id] => 19746451 [patent_doc_number] => 20250035016 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-01-30 [patent_title] => No Lash Dual Stem I.C.E. valve [patent_app_type] => utility [patent_app_number] => 18/487465 [patent_app_country] => US [patent_app_date] => 2023-10-16 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 2102 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => 0 [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] => 18487465 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/487465
No lash dual stem I.C.E. valve Oct 15, 2023 Issued
Array ( [id] => 19608963 [patent_doc_number] => 12157829 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2024-12-03 [patent_title] => Use of coating compositions for wind turbine blades [patent_app_type] => utility [patent_app_number] => 18/486199 [patent_app_country] => US [patent_app_date] => 2023-10-13 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 12542 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 77 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18486199 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/486199
Use of coating compositions for wind turbine blades Oct 12, 2023 Issued
Array ( [id] => 18955941 [patent_doc_number] => 20240044268 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-02-08 [patent_title] => DRIVING DEVICES FOR A COMPOSITE ENGINE VALVE OF A DEDICATED DRIVING CAM [patent_app_type] => utility [patent_app_number] => 18/487033 [patent_app_country] => US [patent_app_date] => 2023-10-13 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 11299 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -8 [patent_words_short_claim] => 399 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18487033 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/487033
Driving devices for a composite engine valve of a dedicated driving cam Oct 12, 2023 Issued
Array ( [id] => 18955940 [patent_doc_number] => 20240044267 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-02-08 [patent_title] => VALVE ACTUATORS FOR SPECIALIZED STATIONARY TWO-PISTON HYDRAULIC ENGINES [patent_app_type] => utility [patent_app_number] => 18/485338 [patent_app_country] => US [patent_app_date] => 2023-10-12 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 9681 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -12 [patent_words_short_claim] => 300 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18485338 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/485338
Valve actuators for specialized stationary two-piston hydraulic engines Oct 11, 2023 Issued
Array ( [id] => 19113504 [patent_doc_number] => 20240125254 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-04-18 [patent_title] => DISCRETE LOST MOTION DEVICE [patent_app_type] => utility [patent_app_number] => 18/484045 [patent_app_country] => US [patent_app_date] => 2023-10-10 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 8939 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -19 [patent_words_short_claim] => 179 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18484045 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/484045
DISCRETE LOST MOTION DEVICE Oct 9, 2023 Pending
Array ( [id] => 19412280 [patent_doc_number] => 12078089 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2024-09-03 [patent_title] => Deactivating rocker arm and capsules [patent_app_type] => utility [patent_app_number] => 18/474007 [patent_app_country] => US [patent_app_date] => 2023-09-25 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 5 [patent_figures_cnt] => 7 [patent_no_of_words] => 6283 [patent_no_of_claims] => 19 [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] => 18474007 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/474007
Deactivating rocker arm and capsules Sep 24, 2023 Issued
Array ( [id] => 19211264 [patent_doc_number] => 12000314 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2024-06-04 [patent_title] => System and method for variable valve timing [patent_app_type] => utility [patent_app_number] => 18/462464 [patent_app_country] => US [patent_app_date] => 2023-09-07 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 15 [patent_figures_cnt] => 20 [patent_no_of_words] => 9674 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 158 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18462464 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/462464
System and method for variable valve timing Sep 6, 2023 Issued
Array ( [id] => 19020831 [patent_doc_number] => 20240077002 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-03-07 [patent_title] => VARIABLE VALVE DEVICE [patent_app_type] => utility [patent_app_number] => 18/460380 [patent_app_country] => US [patent_app_date] => 2023-09-01 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 7622 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -5 [patent_words_short_claim] => 196 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18460380 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/460380
Variable valve device Aug 31, 2023 Issued
Array ( [id] => 19258549 [patent_doc_number] => 12018597 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2024-06-25 [patent_title] => Replacement tappet assembly and kit [patent_app_type] => utility [patent_app_number] => 18/456094 [patent_app_country] => US [patent_app_date] => 2023-08-25 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 7 [patent_no_of_words] => 3019 [patent_no_of_claims] => 14 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 78 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18456094 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/456094
Replacement tappet assembly and kit Aug 24, 2023 Issued
Array ( [id] => 19196811 [patent_doc_number] => 11994042 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2024-05-28 [patent_title] => Adjustable reverse rotation camshaft drive mechanism [patent_app_type] => utility [patent_app_number] => 18/236834 [patent_app_country] => US [patent_app_date] => 2023-08-22 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 8 [patent_figures_cnt] => 8 [patent_no_of_words] => 3095 [patent_no_of_claims] => 10 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 247 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18236834 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/236834
Adjustable reverse rotation camshaft drive mechanism Aug 21, 2023 Issued
Array ( [id] => 19594682 [patent_doc_number] => 12152512 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2024-11-26 [patent_title] => Rocker arm assembly comprising swing bridge [patent_app_type] => utility [patent_app_number] => 18/364259 [patent_app_country] => US [patent_app_date] => 2023-08-02 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 12 [patent_figures_cnt] => 15 [patent_no_of_words] => 6235 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 219 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18364259 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/364259
Rocker arm assembly comprising swing bridge Aug 1, 2023 Issued
Array ( [id] => 18879913 [patent_doc_number] => 20240003282 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-01-04 [patent_title] => Gas Introduction Assembly for Introducing Gas, in Particular Air, into an Exhaust Gas System of an Internal Combustion Engine [patent_app_type] => utility [patent_app_number] => 18/346710 [patent_app_country] => US [patent_app_date] => 2023-07-03 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 4143 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -19 [patent_words_short_claim] => 54 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18346710 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/346710
Gas introduction assembly for introducing gas, in particular air, into an exhaust gas system of an internal combustion engine Jul 2, 2023 Issued
Array ( [id] => 20041722 [patent_doc_number] => 20250179944 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-06-05 [patent_title] => ROCKER SYSTEM WITH STOPPER ARRANGEMENT ON CAM SIDE [patent_app_type] => utility [patent_app_number] => 18/875999 [patent_app_country] => US [patent_app_date] => 2023-06-29 [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] => -13 [patent_words_short_claim] => 120 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18875999 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/875999
ROCKER SYSTEM WITH STOPPER ARRANGEMENT ON CAM SIDE Jun 28, 2023 Pending
Array ( [id] => 18845369 [patent_doc_number] => 20230407773 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-12-21 [patent_title] => SELF-CONTAINED COMPRESSION BRAKE CONTROL MODULE FOR INTEGRATED ROCKER ARM ENGINE BRAKING AND METHODS [patent_app_type] => utility [patent_app_number] => 18/211890 [patent_app_country] => US [patent_app_date] => 2023-06-20 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 8358 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -16 [patent_words_short_claim] => 419 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18211890 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/211890
Self-contained compression brake control module for integrated rocker arm engine braking and methods Jun 19, 2023 Issued
Array ( [id] => 19441750 [patent_doc_number] => 12091995 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2024-09-17 [patent_title] => Installation structure for oil control valve [patent_app_type] => utility [patent_app_number] => 18/336654 [patent_app_country] => US [patent_app_date] => 2023-06-16 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 7 [patent_figures_cnt] => 7 [patent_no_of_words] => 6770 [patent_no_of_claims] => 8 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 137 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18336654 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/336654
Installation structure for oil control valve Jun 15, 2023 Issued
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