Search

Duane Smith

Supervisory Patent Examiner (ID: 26, Phone: (571)272-1166 , Office: P/1776 )

Most Active Art Unit
1724
Art Unit(s)
1737, 1724, 1776, 1700, 1797, 1759, 1305, 3621
Total Applications
1362
Issued Applications
1009
Pending Applications
145
Abandoned Applications
216

Applications

Application numberTitle of the applicationFiling DateStatus
Array ( [id] => 16557945 [patent_doc_number] => 20210003093 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2021-01-07 [patent_title] => ENGINE [patent_app_type] => utility [patent_app_number] => 16/982777 [patent_app_country] => US [patent_app_date] => 2018-03-30 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 3423 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -4 [patent_words_short_claim] => 126 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16982777 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/982777
Engine Mar 29, 2018 Issued
Array ( [id] => 16786721 [patent_doc_number] => 10989138 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2021-04-27 [patent_title] => Internal combustion engine [patent_app_type] => utility [patent_app_number] => 15/937293 [patent_app_country] => US [patent_app_date] => 2018-03-27 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 25 [patent_figures_cnt] => 27 [patent_no_of_words] => 11982 [patent_no_of_claims] => 21 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 125 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 15937293 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/937293
Internal combustion engine Mar 26, 2018 Issued
Array ( [id] => 18980751 [patent_doc_number] => 11905912 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2024-02-20 [patent_title] => Piston of an internal combustion engine [patent_app_type] => utility [patent_app_number] => 16/500813 [patent_app_country] => US [patent_app_date] => 2018-03-26 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 5 [patent_figures_cnt] => 14 [patent_no_of_words] => 4528 [patent_no_of_claims] => 7 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 174 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16500813 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/500813
Piston of an internal combustion engine Mar 25, 2018 Issued
Array ( [id] => 17697891 [patent_doc_number] => 11371610 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2022-06-28 [patent_title] => Flutter-suppression piston ring [patent_app_type] => utility [patent_app_number] => 16/495513 [patent_app_country] => US [patent_app_date] => 2018-03-08 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 7 [patent_no_of_words] => 3847 [patent_no_of_claims] => 28 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 147 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16495513 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/495513
Flutter-suppression piston ring Mar 7, 2018 Issued
Array ( [id] => 13388019 [patent_doc_number] => 20180245551 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2018-08-30 [patent_title] => INTAKE PIPE SUPPORTING STRUCTURE [patent_app_type] => utility [patent_app_number] => 15/904513 [patent_app_country] => US [patent_app_date] => 2018-02-26 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 4231 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -13 [patent_words_short_claim] => 99 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 15904513 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/904513
INTAKE PIPE SUPPORTING STRUCTURE Feb 25, 2018 Abandoned
Array ( [id] => 13463543 [patent_doc_number] => 20180283314 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2018-10-04 [patent_title] => INTERNAL COMBUSTION ENGINE PISTONS AND SCAVENGING METHODS [patent_app_type] => utility [patent_app_number] => 15/903636 [patent_app_country] => US [patent_app_date] => 2018-02-23 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 4619 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -25 [patent_words_short_claim] => 132 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 15903636 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/903636
Internal combustion engine having piston with deflector channels and complementary cylinder head Feb 22, 2018 Issued
Array ( [id] => 13155195 [patent_doc_number] => 10094313 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2018-10-09 [patent_title] => Coordination of vehicle actuators during firing fraction transitions [patent_app_type] => utility [patent_app_number] => 15/902685 [patent_app_country] => US [patent_app_date] => 2018-02-22 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 7 [patent_figures_cnt] => 8 [patent_no_of_words] => 14376 [patent_no_of_claims] => 30 [patent_no_of_ind_claims] => 4 [patent_words_short_claim] => 195 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 15902685 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/902685
Coordination of vehicle actuators during firing fraction transitions Feb 21, 2018 Issued
Array ( [id] => 14748183 [patent_doc_number] => 20190257265 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2019-08-22 [patent_title] => COATING TO REDUCE COKING DEPOSITS ON STEEL PISTONS [patent_app_type] => utility [patent_app_number] => 15/901783 [patent_app_country] => US [patent_app_date] => 2018-02-21 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 2264 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -18 [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] => 15901783 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/901783
Coating to reduce coking deposits on steel pistons Feb 20, 2018 Issued
Array ( [id] => 13917557 [patent_doc_number] => 10202887 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2019-02-12 [patent_title] => Cooling water passage structure for internal combustion engine [patent_app_type] => utility [patent_app_number] => 15/896684 [patent_app_country] => US [patent_app_date] => 2018-02-14 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 7 [patent_figures_cnt] => 7 [patent_no_of_words] => 6308 [patent_no_of_claims] => 9 [patent_no_of_ind_claims] => 1 [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] => 15896684 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/896684
Cooling water passage structure for internal combustion engine Feb 13, 2018 Issued
Array ( [id] => 15542137 [patent_doc_number] => 10570838 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2020-02-25 [patent_title] => Sensing system layout structure of internal combustion engine [patent_app_type] => utility [patent_app_number] => 15/895093 [patent_app_country] => US [patent_app_date] => 2018-02-13 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 5 [patent_figures_cnt] => 5 [patent_no_of_words] => 4995 [patent_no_of_claims] => 6 [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] => 15895093 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/895093
Sensing system layout structure of internal combustion engine Feb 12, 2018 Issued
Array ( [id] => 13358705 [patent_doc_number] => 20180230892 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2018-08-16 [patent_title] => COOLING SYSTEM FOR INTERNAL COMBUSTION ENGINE [patent_app_type] => utility [patent_app_number] => 15/895239 [patent_app_country] => US [patent_app_date] => 2018-02-13 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 32312 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -10 [patent_words_short_claim] => 594 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 15895239 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/895239
Cooling system for internal combustion engine Feb 12, 2018 Issued
Array ( [id] => 14714315 [patent_doc_number] => 20190248221 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2019-08-15 [patent_title] => NOISE/VIBRATION CONTROL USING VARIABLE SPRING ABSORBER [patent_app_type] => utility [patent_app_number] => 15/894521 [patent_app_country] => US [patent_app_date] => 2018-02-12 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 15182 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -13 [patent_words_short_claim] => 51 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 15894521 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/894521
Noise/vibration control using variable spring absorber Feb 11, 2018 Issued
Array ( [id] => 12815272 [patent_doc_number] => 20180163594 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2018-06-14 [patent_title] => VARIABLE SPRAY ANGLE INJECTOR ARRANGEMENT [patent_app_type] => utility [patent_app_number] => 15/890786 [patent_app_country] => US [patent_app_date] => 2018-02-07 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 4655 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -8 [patent_words_short_claim] => 92 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 15890786 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/890786
Variable spray angle injector arrangement Feb 6, 2018 Issued
Array ( [id] => 16650561 [patent_doc_number] => 10927726 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2021-02-23 [patent_title] => System and method for diagnosing a variable oil pump [patent_app_type] => utility [patent_app_number] => 15/890075 [patent_app_country] => US [patent_app_date] => 2018-02-06 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 9 [patent_figures_cnt] => 10 [patent_no_of_words] => 10718 [patent_no_of_claims] => 16 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 53 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 15890075 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/890075
System and method for diagnosing a variable oil pump Feb 5, 2018 Issued
Array ( [id] => 12792748 [patent_doc_number] => 20180156085 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2018-06-07 [patent_title] => QUANTITATIVE ONE-WAY OIL GAS LUBRICANT SYSTEM AND METHOD FOR 4-STROKE ENGINE [patent_app_type] => utility [patent_app_number] => 15/884385 [patent_app_country] => US [patent_app_date] => 2018-01-31 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 4318 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -28 [patent_words_short_claim] => 117 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 15884385 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/884385
Quantitative one-way oil gas lubricant system and method for 4-stroke engine Jan 30, 2018 Issued
Array ( [id] => 13888799 [patent_doc_number] => 10196946 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2019-02-05 [patent_title] => Check valve with anti-icing protection [patent_app_type] => utility [patent_app_number] => 15/883844 [patent_app_country] => US [patent_app_date] => 2018-01-30 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 5 [patent_no_of_words] => 2479 [patent_no_of_claims] => 10 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 155 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 15883844 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/883844
Check valve with anti-icing protection Jan 29, 2018 Issued
Array ( [id] => 14582771 [patent_doc_number] => 20190218994 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2019-07-18 [patent_title] => Cylinder Structure of Internal Combustion Engine [patent_app_type] => utility [patent_app_number] => 15/873713 [patent_app_country] => US [patent_app_date] => 2018-01-17 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 2468 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -9 [patent_words_short_claim] => 220 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 15873713 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/873713
Cylinder structure of internal combustion engine Jan 16, 2018 Issued
Array ( [id] => 12910759 [patent_doc_number] => 20180195429 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2018-07-12 [patent_title] => Flexible Power Belt Routing for a Multi Vehicle General Motors Engine [patent_app_type] => utility [patent_app_number] => 15/863925 [patent_app_country] => US [patent_app_date] => 2018-01-06 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 1742 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -1 [patent_words_short_claim] => 93 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 15863925 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/863925
Flexible Power Belt Routing for a Multi Vehicle General Motors Engine Jan 5, 2018 Abandoned
Array ( [id] => 14763245 [patent_doc_number] => 10393011 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2019-08-27 [patent_title] => Method of operating an internal combustion engine utilizing heat in engine cycles [patent_app_type] => utility [patent_app_number] => 15/852546 [patent_app_country] => US [patent_app_date] => 2017-12-22 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 82 [patent_figures_cnt] => 208 [patent_no_of_words] => 14011 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 463 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 15852546 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/852546
Method of operating an internal combustion engine utilizing heat in engine cycles Dec 21, 2017 Issued
Array ( [id] => 17097571 [patent_doc_number] => 20210285362 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2021-09-16 [patent_title] => TWO-STROKE ENGINE [patent_app_type] => utility [patent_app_number] => 16/478188 [patent_app_country] => US [patent_app_date] => 2017-12-12 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 7178 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -7 [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] => 16478188 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/478188
Two-stroke engine Dec 11, 2017 Issued
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