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] => 15949861 [patent_doc_number] => 10662825 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2020-05-26 [patent_title] => Control based on magnetic circuit feedback [patent_app_type] => utility [patent_app_number] => 16/342376 [patent_app_country] => US [patent_app_date] => 2017-10-13 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 14 [patent_figures_cnt] => 17 [patent_no_of_words] => 9945 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 89 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16342376 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/342376
Control based on magnetic circuit feedback Oct 12, 2017 Issued
Array ( [id] => 12752260 [patent_doc_number] => 20180142587 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2018-05-24 [patent_title] => OIL SEPARATION DEVICE FOR INTERNAL COMBUSTION ENGINE [patent_app_type] => utility [patent_app_number] => 15/728084 [patent_app_country] => US [patent_app_date] => 2017-10-09 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 8681 [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] => 15728084 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/728084
Oil separation device for internal combustion engine Oct 8, 2017 Issued
Array ( [id] => 16029389 [patent_doc_number] => 10677105 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2020-06-09 [patent_title] => Camshaft for an internal combustion engine [patent_app_type] => utility [patent_app_number] => 16/467801 [patent_app_country] => US [patent_app_date] => 2017-09-27 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 2 [patent_figures_cnt] => 4 [patent_no_of_words] => 3457 [patent_no_of_claims] => 3 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 124 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16467801 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/467801
Camshaft for an internal combustion engine Sep 26, 2017 Issued
Array ( [id] => 14666247 [patent_doc_number] => 10371017 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2019-08-06 [patent_title] => Valve opening and closing timing control apparatus [patent_app_type] => utility [patent_app_number] => 15/704258 [patent_app_country] => US [patent_app_date] => 2017-09-14 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 6 [patent_figures_cnt] => 8 [patent_no_of_words] => 6554 [patent_no_of_claims] => 4 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 347 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 15704258 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/704258
Valve opening and closing timing control apparatus Sep 13, 2017 Issued
Array ( [id] => 15087747 [patent_doc_number] => 20190338684 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2019-11-07 [patent_title] => Valve Train Device [patent_app_type] => utility [patent_app_number] => 16/344713 [patent_app_country] => US [patent_app_date] => 2017-08-31 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 4748 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -8 [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] => 16344713 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/344713
Valve train device Aug 30, 2017 Issued
Array ( [id] => 14535991 [patent_doc_number] => 20190203617 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2019-07-04 [patent_title] => MECHANISM FOR LOCKING A VARIABLE CAM TIMING DEVICE [patent_app_type] => utility [patent_app_number] => 16/327389 [patent_app_country] => US [patent_app_date] => 2017-08-23 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 3709 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -2 [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] => 16327389 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/327389
Mechanism for locking a variable cam timing device Aug 22, 2017 Issued
Array ( [id] => 15456009 [patent_doc_number] => 20200040829 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2020-02-06 [patent_title] => Combined Identification Of An Inlet Valve Stroke Phase Difference And An Outlet Valve Stroke Phase Difference Of An Internal Combustion Engine With The Aid Of Lines Of The Same Amplitude [patent_app_type] => utility [patent_app_number] => 16/338552 [patent_app_country] => US [patent_app_date] => 2017-08-10 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 8230 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -10 [patent_words_short_claim] => 250 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16338552 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/338552
Combined identification of an inlet valve stroke phase difference and an outlet valve stroke phase difference of an internal combustion engine with the aid of lines of the same amplitude Aug 9, 2017 Issued
Array ( [id] => 15456011 [patent_doc_number] => 20200040830 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2020-02-06 [patent_title] => Method for the Combined Identification of Phase Differences of the Inlet Valve Stroke and of the Outlet Valve Stroke [patent_app_type] => utility [patent_app_number] => 16/338599 [patent_app_country] => US [patent_app_date] => 2017-08-10 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 9560 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -10 [patent_words_short_claim] => 301 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16338599 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/338599
Method for the combined identification of phase differences of the inlet valve stroke and of the outlet valve stroke Aug 9, 2017 Issued
Array ( [id] => 14120403 [patent_doc_number] => 10247052 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2019-04-02 [patent_title] => Guide assembly for valve lifters of engines [patent_app_type] => utility [patent_app_number] => 15/663870 [patent_app_country] => US [patent_app_date] => 2017-07-31 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 4 [patent_no_of_words] => 5600 [patent_no_of_claims] => 17 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 131 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 15663870 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/663870
Guide assembly for valve lifters of engines Jul 30, 2017 Issued
Array ( [id] => 14172763 [patent_doc_number] => 10260381 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2019-04-16 [patent_title] => Variable valve mechanism of internal combustion engine [patent_app_type] => utility [patent_app_number] => 15/655680 [patent_app_country] => US [patent_app_date] => 2017-07-20 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 8 [patent_figures_cnt] => 12 [patent_no_of_words] => 3280 [patent_no_of_claims] => 6 [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] => 15655680 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/655680
Variable valve mechanism of internal combustion engine Jul 19, 2017 Issued
Array ( [id] => 13794595 [patent_doc_number] => 20190010836 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2019-01-10 [patent_title] => SELF-ALIGNING ROCKER ARM AND PUSHROD DESIGN [patent_app_type] => utility [patent_app_number] => 15/643592 [patent_app_country] => US [patent_app_date] => 2017-07-07 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 4960 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [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] => 15643592 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/643592
Self-aligning rocker arm and pushrod design Jul 6, 2017 Issued
Array ( [id] => 15786085 [patent_doc_number] => 10626757 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2020-04-21 [patent_title] => Assembly aid, camshaft module, and method for fixing the rotational position of rotatably mounted shafts [patent_app_type] => utility [patent_app_number] => 16/317145 [patent_app_country] => US [patent_app_date] => 2017-07-07 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 5 [patent_figures_cnt] => 7 [patent_no_of_words] => 3645 [patent_no_of_claims] => 15 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 106 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16317145 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/317145
Assembly aid, camshaft module, and method for fixing the rotational position of rotatably mounted shafts Jul 6, 2017 Issued
Array ( [id] => 15087737 [patent_doc_number] => 20190338679 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2019-11-07 [patent_title] => OPPOSED PISTON TYPE ENGINE [patent_app_type] => utility [patent_app_number] => 16/480162 [patent_app_country] => US [patent_app_date] => 2017-07-05 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 6438 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -4 [patent_words_short_claim] => 209 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16480162 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/480162
Opposed piston type engine Jul 4, 2017 Issued
Array ( [id] => 14639949 [patent_doc_number] => 10364709 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2019-07-30 [patent_title] => Variable valve mechanism, engine, and automatic two-wheeled vehicle [patent_app_type] => utility [patent_app_number] => 15/639562 [patent_app_country] => US [patent_app_date] => 2017-06-30 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 11 [patent_figures_cnt] => 11 [patent_no_of_words] => 12718 [patent_no_of_claims] => 13 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 350 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 15639562 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/639562
Variable valve mechanism, engine, and automatic two-wheeled vehicle Jun 29, 2017 Issued
Array ( [id] => 14146585 [patent_doc_number] => 10253660 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2019-04-09 [patent_title] => Valve train for an internal combustion engine [patent_app_type] => utility [patent_app_number] => 15/628382 [patent_app_country] => US [patent_app_date] => 2017-06-20 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 2 [patent_figures_cnt] => 4 [patent_no_of_words] => 3464 [patent_no_of_claims] => 19 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 352 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 15628382 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/628382
Valve train for an internal combustion engine Jun 19, 2017 Issued
Array ( [id] => 14120425 [patent_doc_number] => 10247063 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2019-04-02 [patent_title] => Valve train for an internal combustion engine [patent_app_type] => utility [patent_app_number] => 15/627050 [patent_app_country] => US [patent_app_date] => 2017-06-19 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 2 [patent_figures_cnt] => 3 [patent_no_of_words] => 3513 [patent_no_of_claims] => 17 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 250 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 15627050 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/627050
Valve train for an internal combustion engine Jun 18, 2017 Issued
Array ( [id] => 11980082 [patent_doc_number] => 20170284236 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2017-10-05 [patent_title] => 'ROCKER SHAFT WITH DE-AERATION OIL GALLERY SEGMENT' [patent_app_type] => utility [patent_app_number] => 15/624365 [patent_app_country] => US [patent_app_date] => 2017-06-15 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 8 [patent_figures_cnt] => 8 [patent_no_of_words] => 5615 [patent_no_of_claims] => 9 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 0 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 15624365 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/624365
Rocker shaft with de-aeration oil gallery segment Jun 14, 2017 Issued
Array ( [id] => 15607141 [patent_doc_number] => 10584620 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2020-03-10 [patent_title] => Lubrication of backs of cams by oil recovery [patent_app_type] => utility [patent_app_number] => 16/314878 [patent_app_country] => US [patent_app_date] => 2017-06-15 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 2 [patent_figures_cnt] => 4 [patent_no_of_words] => 2457 [patent_no_of_claims] => 15 [patent_no_of_ind_claims] => 4 [patent_words_short_claim] => 101 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16314878 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/314878
Lubrication of backs of cams by oil recovery Jun 14, 2017 Issued
Array ( [id] => 11964235 [patent_doc_number] => 20170268387 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2017-09-21 [patent_title] => 'INTERNAL COMBUSTION ENGINE WITH A CAMSHAFT PHASER' [patent_app_type] => utility [patent_app_number] => 15/611370 [patent_app_country] => US [patent_app_date] => 2017-06-01 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 14 [patent_figures_cnt] => 14 [patent_no_of_words] => 8779 [patent_no_of_claims] => 14 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 0 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 15611370 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/611370
INTERNAL COMBUSTION ENGINE WITH A CAMSHAFT PHASER May 31, 2017 Abandoned
Array ( [id] => 14006567 [patent_doc_number] => 10221727 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2019-03-05 [patent_title] => Engine [patent_app_type] => utility [patent_app_number] => 15/603692 [patent_app_country] => US [patent_app_date] => 2017-05-24 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 35 [patent_figures_cnt] => 37 [patent_no_of_words] => 6900 [patent_no_of_claims] => 10 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 145 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 15603692 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/603692
Engine May 23, 2017 Issued
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