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] => 11815455 [patent_doc_number] => 09719399 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2017-08-01 [patent_title] => 'Method of operating an exhaust emission control device, and corresponding exhaust emission control device' [patent_app_type] => utility [patent_app_number] => 14/973028 [patent_app_country] => US [patent_app_date] => 2015-12-17 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 2 [patent_figures_cnt] => 2 [patent_no_of_words] => 3915 [patent_no_of_claims] => 8 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 153 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 14973028 [rel_patent_id] =>[rel_patent_doc_number] =>)
14/973028
Method of operating an exhaust emission control device, and corresponding exhaust emission control device Dec 16, 2015 Issued
Array ( [id] => 11084599 [patent_doc_number] => 20160281564 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2016-09-29 [patent_title] => 'ENGINE EXHAUST TREATMENT DEVICE' [patent_app_type] => utility [patent_app_number] => 14/963316 [patent_app_country] => US [patent_app_date] => 2015-12-09 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 17 [patent_figures_cnt] => 17 [patent_no_of_words] => 4886 [patent_no_of_claims] => 12 [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] => 14963316 [rel_patent_id] =>[rel_patent_doc_number] =>)
14/963316
Engine exhaust treatment device Dec 8, 2015 Issued
Array ( [id] => 13648983 [patent_doc_number] => 09850800 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2017-12-26 [patent_title] => Exhaust system having gasket [patent_app_type] => utility [patent_app_number] => 14/958736 [patent_app_country] => US [patent_app_date] => 2015-12-03 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 5 [patent_figures_cnt] => 5 [patent_no_of_words] => 2801 [patent_no_of_claims] => 13 [patent_no_of_ind_claims] => 3 [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] => 14958736 [rel_patent_id] =>[rel_patent_doc_number] =>)
14/958736
Exhaust system having gasket Dec 2, 2015 Issued
Array ( [id] => 12947011 [patent_doc_number] => 09835067 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2017-12-05 [patent_title] => Exhaust purification device and method of calculating NOx mass reduced from lean NOx trap during regeneration [patent_app_type] => utility [patent_app_number] => 14/955955 [patent_app_country] => US [patent_app_date] => 2015-12-01 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 5 [patent_figures_cnt] => 5 [patent_no_of_words] => 6247 [patent_no_of_claims] => 11 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 129 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 14955955 [rel_patent_id] =>[rel_patent_doc_number] =>)
14/955955
Exhaust purification device and method of calculating NOx mass reduced from lean NOx trap during regeneration Nov 30, 2015 Issued
Array ( [id] => 11500006 [patent_doc_number] => 20170074191 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2017-03-16 [patent_title] => 'METHOD FOR REGENERATING LEAN NOx TRAP OF EXHAUST PURIFICATION SYSTEM PROVIDED WITH LEAN NOx TRAP AND SELECTIVE CATALYTIC REDUCTION CATALYST AND EXHAUST PURIFICATION SYSTEM' [patent_app_type] => utility [patent_app_number] => 14/954866 [patent_app_country] => US [patent_app_date] => 2015-11-30 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 6 [patent_figures_cnt] => 6 [patent_no_of_words] => 5716 [patent_no_of_claims] => 16 [patent_no_of_ind_claims] => 2 [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] => 14954866 [rel_patent_id] =>[rel_patent_doc_number] =>)
14/954866
Method for regenerating lean NOx trap of exhaust purification system provided with lean NOx trap and selective catalytic reduction catalyst and exhaust purification system Nov 29, 2015 Issued
Array ( [id] => 11500005 [patent_doc_number] => 20170074190 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2017-03-16 [patent_title] => 'CONTROL METHOD FOR IMPROVING NITROGEN OXIDE PURIFICATION PERFORMANCE' [patent_app_type] => utility [patent_app_number] => 14/949864 [patent_app_country] => US [patent_app_date] => 2015-11-23 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 5 [patent_figures_cnt] => 5 [patent_no_of_words] => 4767 [patent_no_of_claims] => 15 [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] => 14949864 [rel_patent_id] =>[rel_patent_doc_number] =>)
14/949864
Control method for improving nitrogen oxide purification performance Nov 22, 2015 Issued
Array ( [id] => 11859516 [patent_doc_number] => 09739190 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2017-08-22 [patent_title] => 'Method and apparatus to control reductant injection into an exhaust gas feedstream' [patent_app_type] => utility [patent_app_number] => 14/939570 [patent_app_country] => US [patent_app_date] => 2015-11-12 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 6 [patent_no_of_words] => 4655 [patent_no_of_claims] => 13 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 164 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 14939570 [rel_patent_id] =>[rel_patent_doc_number] =>)
14/939570
Method and apparatus to control reductant injection into an exhaust gas feedstream Nov 11, 2015 Issued
Array ( [id] => 12031545 [patent_doc_number] => 20170321644 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2017-11-09 [patent_title] => 'METHOD AND DEVICE FOR CONTROLLING A HIGH-PRESSURE FUEL PUMP IN AN INTERNAL COMBUSTION ENGINE' [patent_app_type] => utility [patent_app_number] => 15/525334 [patent_app_country] => US [patent_app_date] => 2015-11-10 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 4 [patent_no_of_words] => 3514 [patent_no_of_claims] => 12 [patent_no_of_ind_claims] => 4 [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] => 15525334 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/525334
Method and device for controlling a high-pressure fuel pump in an internal combustion engine Nov 9, 2015 Issued
Array ( [id] => 11620505 [patent_doc_number] => 20170130692 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2017-05-11 [patent_title] => 'Gravity Pneumatic Buoyant Powered Wheel Generator' [patent_app_type] => utility [patent_app_number] => 14/934910 [patent_app_country] => US [patent_app_date] => 2015-11-06 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 3 [patent_no_of_words] => 1375 [patent_no_of_claims] => 6 [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] => 14934910 [rel_patent_id] =>[rel_patent_doc_number] =>)
14/934910
Gravity Pneumatic Buoyant Powered Wheel Generator Nov 5, 2015 Abandoned
Array ( [id] => 14391981 [patent_doc_number] => 10309263 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2019-06-04 [patent_title] => Rocker arm and method of manufacturing the rocker arm [patent_app_type] => utility [patent_app_number] => 15/535586 [patent_app_country] => US [patent_app_date] => 2015-11-05 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 5 [patent_figures_cnt] => 5 [patent_no_of_words] => 3841 [patent_no_of_claims] => 8 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 245 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 15535586 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/535586
Rocker arm and method of manufacturing the rocker arm Nov 4, 2015 Issued
Array ( [id] => 14520231 [patent_doc_number] => 10337363 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2019-07-02 [patent_title] => Valve opening and closing timing control apparatus [patent_app_type] => utility [patent_app_number] => 15/501954 [patent_app_country] => US [patent_app_date] => 2015-10-28 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 7 [patent_figures_cnt] => 13 [patent_no_of_words] => 8428 [patent_no_of_claims] => 2 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 489 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 15501954 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/501954
Valve opening and closing timing control apparatus Oct 27, 2015 Issued
Array ( [id] => 11908895 [patent_doc_number] => 09777701 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2017-10-03 [patent_title] => 'Carpet of wave energy conversion (CWEC)' [patent_app_type] => utility [patent_app_number] => 14/919709 [patent_app_country] => US [patent_app_date] => 2015-10-21 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 12 [patent_figures_cnt] => 15 [patent_no_of_words] => 8840 [patent_no_of_claims] => 36 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 164 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 14919709 [rel_patent_id] =>[rel_patent_doc_number] =>)
14/919709
Carpet of wave energy conversion (CWEC) Oct 20, 2015 Issued
Array ( [id] => 12981865 [patent_doc_number] => 20170342871 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2017-11-30 [patent_title] => CAMSHAFT PHASE REGULATOR [patent_app_type] => utility [patent_app_number] => 15/535221 [patent_app_country] => US [patent_app_date] => 2015-10-12 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 2938 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -5 [patent_words_short_claim] => 299 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 15535221 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/535221
CAMSHAFT PHASE REGULATOR Oct 11, 2015 Abandoned
Array ( [id] => 12024328 [patent_doc_number] => 20170314427 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2017-11-02 [patent_title] => 'METHOD FOR PRODUCING AN ADJUSTABLE CAMSHAFT AND ADJUSTABLE CAMSHAFT' [patent_app_type] => utility [patent_app_number] => 15/521340 [patent_app_country] => US [patent_app_date] => 2015-09-30 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 4 [patent_no_of_words] => 6961 [patent_no_of_claims] => 21 [patent_no_of_ind_claims] => 4 [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] => 15521340 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/521340
METHOD FOR PRODUCING AN ADJUSTABLE CAMSHAFT AND ADJUSTABLE CAMSHAFT Sep 29, 2015 Abandoned
Array ( [id] => 11737762 [patent_doc_number] => 09702336 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2017-07-11 [patent_title] => 'Low profile ocean pump array generation station' [patent_app_type] => utility [patent_app_number] => 14/869295 [patent_app_country] => US [patent_app_date] => 2015-09-29 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 4 [patent_no_of_words] => 1528 [patent_no_of_claims] => 5 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 126 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 14869295 [rel_patent_id] =>[rel_patent_doc_number] =>)
14/869295
Low profile ocean pump array generation station Sep 28, 2015 Issued
Array ( [id] => 10730259 [patent_doc_number] => 20160076408 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2016-03-17 [patent_title] => 'VALVE OPENING AND CLOSING TIMING CONTROL DEVICE' [patent_app_type] => utility [patent_app_number] => 14/854749 [patent_app_country] => US [patent_app_date] => 2015-09-15 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 7 [patent_figures_cnt] => 7 [patent_no_of_words] => 7419 [patent_no_of_claims] => 7 [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] => 14854749 [rel_patent_id] =>[rel_patent_doc_number] =>)
14/854749
Valve opening and closing timing control device Sep 14, 2015 Issued
Array ( [id] => 12212665 [patent_doc_number] => 09909463 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2018-03-06 [patent_title] => 'Hydraulic valve and cam phaser' [patent_app_type] => utility [patent_app_number] => 14/848456 [patent_app_country] => US [patent_app_date] => 2015-09-09 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 2 [patent_figures_cnt] => 2 [patent_no_of_words] => 5320 [patent_no_of_claims] => 11 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 132 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 14848456 [rel_patent_id] =>[rel_patent_doc_number] =>)
14/848456
Hydraulic valve and cam phaser Sep 8, 2015 Issued
Array ( [id] => 10714915 [patent_doc_number] => 20160061062 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2016-03-03 [patent_title] => 'ROCKER ARM ASSEMBLY AND VALVETRAIN ASSEMBLY INCORPORATING THE SAME' [patent_app_type] => utility [patent_app_number] => 14/843258 [patent_app_country] => US [patent_app_date] => 2015-09-02 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 14 [patent_figures_cnt] => 14 [patent_no_of_words] => 5032 [patent_no_of_claims] => 38 [patent_no_of_ind_claims] => 2 [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] => 14843258 [rel_patent_id] =>[rel_patent_doc_number] =>)
14/843258
Rocker arm assembly and valvetrain assembly incorporating the same Sep 1, 2015 Issued
Array ( [id] => 10714915 [patent_doc_number] => 20160061062 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2016-03-03 [patent_title] => 'ROCKER ARM ASSEMBLY AND VALVETRAIN ASSEMBLY INCORPORATING THE SAME' [patent_app_type] => utility [patent_app_number] => 14/843258 [patent_app_country] => US [patent_app_date] => 2015-09-02 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 14 [patent_figures_cnt] => 14 [patent_no_of_words] => 5032 [patent_no_of_claims] => 38 [patent_no_of_ind_claims] => 2 [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] => 14843258 [rel_patent_id] =>[rel_patent_doc_number] =>)
14/843258
Rocker arm assembly and valvetrain assembly incorporating the same Sep 1, 2015 Issued
Array ( [id] => 11471954 [patent_doc_number] => 20170058738 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2017-03-02 [patent_title] => 'TREATMENT OF EMISSIONS IN POWER PLANTS' [patent_app_type] => utility [patent_app_number] => 14/838784 [patent_app_country] => US [patent_app_date] => 2015-08-28 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 7 [patent_figures_cnt] => 7 [patent_no_of_words] => 5285 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 2 [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] => 14838784 [rel_patent_id] =>[rel_patent_doc_number] =>)
14/838784
TREATMENT OF EMISSIONS IN POWER PLANTS Aug 27, 2015 Abandoned
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