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] => 6041181 [patent_doc_number] => 20110203258 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2011-08-25 [patent_title] => 'EXHAUST VALVE ACTUATION SYSTEM FOR DIESEL PARTICULATE FILTER REGENERATION' [patent_app_type] => utility [patent_app_number] => 12/712282 [patent_app_country] => US [patent_app_date] => 2010-02-25 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 3 [patent_no_of_words] => 2577 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 0 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] => publications/A1/0203/20110203258.pdf [firstpage_image] =>[orig_patent_app_number] => 12712282 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/712282
EXHAUST VALVE ACTUATION SYSTEM FOR DIESEL PARTICULATE FILTER REGENERATION Feb 24, 2010 Abandoned
Array ( [id] => 6467437 [patent_doc_number] => 20100212300 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2010-08-26 [patent_title] => 'Exhaust Purification With On-Board Ammonia Production' [patent_app_type] => utility [patent_app_number] => 12/710455 [patent_app_country] => US [patent_app_date] => 2010-02-23 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 8 [patent_figures_cnt] => 8 [patent_no_of_words] => 5858 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 0 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] => publications/A1/0212/20100212300.pdf [firstpage_image] =>[orig_patent_app_number] => 12710455 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/710455
Exhaust Purification With On-Board Ammonia Production Feb 22, 2010 Abandoned
Array ( [id] => 11750989 [patent_doc_number] => 09708994 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2017-07-18 [patent_title] => 'Method of regenerating an exhaust after treatment device' [patent_app_type] => utility [patent_app_number] => 12/710533 [patent_app_country] => US [patent_app_date] => 2010-02-23 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 2 [patent_figures_cnt] => 3 [patent_no_of_words] => 3144 [patent_no_of_claims] => 6 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 181 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 12710533 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/710533
Method of regenerating an exhaust after treatment device Feb 22, 2010 Issued
Array ( [id] => 11750989 [patent_doc_number] => 09708994 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2017-07-18 [patent_title] => 'Method of regenerating an exhaust after treatment device' [patent_app_type] => utility [patent_app_number] => 12/710533 [patent_app_country] => US [patent_app_date] => 2010-02-23 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 2 [patent_figures_cnt] => 3 [patent_no_of_words] => 3144 [patent_no_of_claims] => 6 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 181 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 12710533 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/710533
Method of regenerating an exhaust after treatment device Feb 22, 2010 Issued
Array ( [id] => 8856486 [patent_doc_number] => 08459009 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2013-06-11 [patent_title] => 'Method and device for controlling an SCR-exhaust gas after-treatment system of an internal combustion engine' [patent_app_type] => utility [patent_app_number] => 12/709996 [patent_app_country] => US [patent_app_date] => 2010-02-22 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 1 [patent_figures_cnt] => 1 [patent_no_of_words] => 3495 [patent_no_of_claims] => 14 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 109 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 12709996 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/709996
Method and device for controlling an SCR-exhaust gas after-treatment system of an internal combustion engine Feb 21, 2010 Issued
Array ( [id] => 8268471 [patent_doc_number] => 08209971 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2012-07-03 [patent_title] => 'Burner for heating a stream of gas' [patent_app_type] => utility [patent_app_number] => 12/707944 [patent_app_country] => US [patent_app_date] => 2010-02-18 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 7 [patent_figures_cnt] => 7 [patent_no_of_words] => 7516 [patent_no_of_claims] => 31 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 454 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 12707944 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/707944
Burner for heating a stream of gas Feb 17, 2010 Issued
Array ( [id] => 6056921 [patent_doc_number] => 20110197572 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2011-08-18 [patent_title] => 'SMART EXHAUST GAS FLOW CONTROL APPARATUS' [patent_app_type] => utility [patent_app_number] => 12/704758 [patent_app_country] => US [patent_app_date] => 2010-02-12 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 9 [patent_figures_cnt] => 9 [patent_no_of_words] => 2351 [patent_no_of_claims] => 5 [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] => publications/A1/0197/20110197572.pdf [firstpage_image] =>[orig_patent_app_number] => 12704758 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/704758
SMART EXHAUST GAS FLOW CONTROL APPARATUS Feb 11, 2010 Abandoned
Array ( [id] => 6482830 [patent_doc_number] => 20100199638 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2010-08-12 [patent_title] => 'APPARATUS FOR DIAGNOSING DETERIORATION OF NOX ABSORPTION-REDUCTION CATALYST' [patent_app_type] => utility [patent_app_number] => 12/705385 [patent_app_country] => US [patent_app_date] => 2010-02-12 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 11 [patent_figures_cnt] => 11 [patent_no_of_words] => 11337 [patent_no_of_claims] => 9 [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] => publications/A1/0199/20100199638.pdf [firstpage_image] =>[orig_patent_app_number] => 12705385 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/705385
APPARATUS FOR DIAGNOSING DETERIORATION OF NOX ABSORPTION-REDUCTION CATALYST Feb 11, 2010 Abandoned
Array ( [id] => 9271930 [patent_doc_number] => 08635856 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2014-01-28 [patent_title] => 'System for disabling diesel particulate filter regeneration during electric operation' [patent_app_type] => utility [patent_app_number] => 12/705172 [patent_app_country] => US [patent_app_date] => 2010-02-12 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 2 [patent_figures_cnt] => 2 [patent_no_of_words] => 1283 [patent_no_of_claims] => 5 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 209 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 12705172 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/705172
System for disabling diesel particulate filter regeneration during electric operation Feb 11, 2010 Issued
Array ( [id] => 7495549 [patent_doc_number] => 20110258989 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2011-10-27 [patent_title] => 'EXHAUST PURIFICATION APPARATUS FOR INTERNAL COMBUSTION ENGINE' [patent_app_type] => utility [patent_app_number] => 12/990816 [patent_app_country] => US [patent_app_date] => 2010-01-14 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 9 [patent_figures_cnt] => 9 [patent_no_of_words] => 9566 [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] => publications/A1/0258/20110258989.pdf [firstpage_image] =>[orig_patent_app_number] => 12990816 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/990816
Exhaust purification apparatus for internal combustion engine Jan 13, 2010 Issued
Array ( [id] => 8185334 [patent_doc_number] => 08181452 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2012-05-22 [patent_title] => 'Particulate filter regeneration during engine shutdown' [patent_app_type] => utility [patent_app_number] => 12/629743 [patent_app_country] => US [patent_app_date] => 2009-12-02 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 7 [patent_figures_cnt] => 7 [patent_no_of_words] => 8407 [patent_no_of_claims] => 18 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 60 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/08/181/08181452.pdf [firstpage_image] =>[orig_patent_app_number] => 12629743 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/629743
Particulate filter regeneration during engine shutdown Dec 1, 2009 Issued
Array ( [id] => 6135163 [patent_doc_number] => 20110126529 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2011-06-02 [patent_title] => 'AIR ASSISTED INJECTOR, AND INJECTION SYSTEM AND EXHAUST TREATMENT SYSTEM INCORPORATING THE SAME' [patent_app_type] => utility [patent_app_number] => 12/628435 [patent_app_country] => US [patent_app_date] => 2009-12-01 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 8 [patent_figures_cnt] => 8 [patent_no_of_words] => 6164 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 0 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] => publications/A1/0126/20110126529.pdf [firstpage_image] =>[orig_patent_app_number] => 12628435 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/628435
Air assisted injector, and injection system and exhaust treatment system incorporating the same Nov 30, 2009 Issued
Array ( [id] => 8992924 [patent_doc_number] => 08516796 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2013-08-27 [patent_title] => 'System and method for monitoring catalyst efficiency and post-catalyst oxygen sensor performance' [patent_app_type] => utility [patent_app_number] => 12/623013 [patent_app_country] => US [patent_app_date] => 2009-11-20 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 5 [patent_figures_cnt] => 6 [patent_no_of_words] => 7819 [patent_no_of_claims] => 23 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 228 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 12623013 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/623013
System and method for monitoring catalyst efficiency and post-catalyst oxygen sensor performance Nov 19, 2009 Issued
Array ( [id] => 6017885 [patent_doc_number] => 20110047984 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2011-03-03 [patent_title] => 'EXHAUST SYSTEM' [patent_app_type] => utility [patent_app_number] => 12/621263 [patent_app_country] => US [patent_app_date] => 2009-11-18 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 9 [patent_figures_cnt] => 9 [patent_no_of_words] => 4036 [patent_no_of_claims] => 10 [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] => publications/A1/0047/20110047984.pdf [firstpage_image] =>[orig_patent_app_number] => 12621263 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/621263
EXHAUST SYSTEM Nov 17, 2009 Abandoned
Array ( [id] => 6111921 [patent_doc_number] => 20110072803 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2011-03-31 [patent_title] => 'METHOD FOR ADJUSTING BOOST PRESSURE WHILE REGENERATING A PARTICULATE FILTER FOR A DIRECT INJECTION ENGINE' [patent_app_type] => utility [patent_app_number] => 12/620366 [patent_app_country] => US [patent_app_date] => 2009-11-17 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 6 [patent_figures_cnt] => 6 [patent_no_of_words] => 11680 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 0 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] => publications/A1/0072/20110072803.pdf [firstpage_image] =>[orig_patent_app_number] => 12620366 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/620366
Method for adjusting boost pressure while regenerating a particulate filter for a direct injection engine Nov 16, 2009 Issued
Array ( [id] => 8687848 [patent_doc_number] => 08387370 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2013-03-05 [patent_title] => 'System for regenerating a particulate filter and controlling EGR' [patent_app_type] => utility [patent_app_number] => 12/620374 [patent_app_country] => US [patent_app_date] => 2009-11-17 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 5 [patent_figures_cnt] => 5 [patent_no_of_words] => 11637 [patent_no_of_claims] => 17 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 110 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 12620374 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/620374
System for regenerating a particulate filter and controlling EGR Nov 16, 2009 Issued
Array ( [id] => 6111897 [patent_doc_number] => 20110072794 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2011-03-31 [patent_title] => 'SYSTEM AND METHOD FOR REGENERATING A PARTICULATE FILTER FOR A DIRECT INJECTION ENGINE' [patent_app_type] => utility [patent_app_number] => 12/620354 [patent_app_country] => US [patent_app_date] => 2009-11-17 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 6 [patent_figures_cnt] => 6 [patent_no_of_words] => 11731 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 0 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] => publications/A1/0072/20110072794.pdf [firstpage_image] =>[orig_patent_app_number] => 12620354 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/620354
System and method for regenerating a particulate filter for a direct injection engine Nov 16, 2009 Issued
Array ( [id] => 5994046 [patent_doc_number] => 20110113764 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2011-05-19 [patent_title] => 'Exhaust Gas Additive/Treatment System and Mixer for Use Therein' [patent_app_type] => utility [patent_app_number] => 12/620302 [patent_app_country] => US [patent_app_date] => 2009-11-17 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 14 [patent_figures_cnt] => 14 [patent_no_of_words] => 3338 [patent_no_of_claims] => 32 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 0 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] => publications/A1/0113/20110113764.pdf [firstpage_image] =>[orig_patent_app_number] => 12620302 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/620302
Exhaust gas additive/treatment system and mixer for use therein Nov 16, 2009 Issued
Array ( [id] => 8869144 [patent_doc_number] => 08464514 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2013-06-18 [patent_title] => 'Method for regenerating a particulate filter for a boosted direct injection engine' [patent_app_type] => utility [patent_app_number] => 12/620386 [patent_app_country] => US [patent_app_date] => 2009-11-17 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 5 [patent_figures_cnt] => 5 [patent_no_of_words] => 11419 [patent_no_of_claims] => 22 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 59 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 12620386 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/620386
Method for regenerating a particulate filter for a boosted direct injection engine Nov 16, 2009 Issued
Array ( [id] => 5938453 [patent_doc_number] => 20110099996 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2011-05-05 [patent_title] => 'EXHAUST AFTERTREATMENT SYSTEM' [patent_app_type] => utility [patent_app_number] => 12/611335 [patent_app_country] => US [patent_app_date] => 2009-11-03 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 2 [patent_figures_cnt] => 2 [patent_no_of_words] => 4102 [patent_no_of_claims] => 21 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 0 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] => publications/A1/0099/20110099996.pdf [firstpage_image] =>[orig_patent_app_number] => 12611335 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/611335
Exhaust aftertreatment system Nov 2, 2009 Issued
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