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] => 18135208 [patent_doc_number] => 11560865 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2023-01-24 [patent_title] => Vehicle air cleaner [patent_app_type] => utility [patent_app_number] => 17/115169 [patent_app_country] => US [patent_app_date] => 2020-12-08 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 11 [patent_figures_cnt] => 13 [patent_no_of_words] => 6983 [patent_no_of_claims] => 16 [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] => 17115169 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/115169
Vehicle air cleaner Dec 7, 2020 Issued
Array ( [id] => 17436515 [patent_doc_number] => 11261833 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2022-03-01 [patent_title] => Breather device for outboard motor engine [patent_app_type] => utility [patent_app_number] => 17/103541 [patent_app_country] => US [patent_app_date] => 2020-11-24 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 8 [patent_figures_cnt] => 13 [patent_no_of_words] => 5933 [patent_no_of_claims] => 4 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 133 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17103541 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/103541
Breather device for outboard motor engine Nov 23, 2020 Issued
Array ( [id] => 18478811 [patent_doc_number] => 11692544 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2023-07-04 [patent_title] => Scraper ring assembly [patent_app_type] => utility [patent_app_number] => 16/953961 [patent_app_country] => US [patent_app_date] => 2020-11-20 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 6 [patent_figures_cnt] => 9 [patent_no_of_words] => 9495 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 3 [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] => 16953961 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/953961
Scraper ring assembly Nov 19, 2020 Issued
Array ( [id] => 16689074 [patent_doc_number] => 20210071550 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2021-03-11 [patent_title] => VARIABLE COMPRESSION RATIO MECHANISM [patent_app_type] => utility [patent_app_number] => 16/953477 [patent_app_country] => US [patent_app_date] => 2020-11-20 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 11126 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -15 [patent_words_short_claim] => 95 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16953477 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/953477
Variable compression ratio mechanism Nov 19, 2020 Issued
Array ( [id] => 18478810 [patent_doc_number] => 11692543 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2023-07-04 [patent_title] => Scraper ring [patent_app_type] => utility [patent_app_number] => 16/953942 [patent_app_country] => US [patent_app_date] => 2020-11-20 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 5 [patent_figures_cnt] => 7 [patent_no_of_words] => 5796 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 3 [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] => 16953942 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/953942
Scraper ring Nov 19, 2020 Issued
Array ( [id] => 17596252 [patent_doc_number] => 20220145826 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2022-05-12 [patent_title] => PISTON HAVING SMOOTHED OUTER CROWN SURFACE IN DEPOSIT-SENSITIVE ZONE [patent_app_type] => utility [patent_app_number] => 17/095957 [patent_app_country] => US [patent_app_date] => 2020-11-12 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 3659 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -14 [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] => 17095957 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/095957
Piston having smoothed outer crown surface in deposit-sensitive zone Nov 11, 2020 Issued
Array ( [id] => 16658139 [patent_doc_number] => 20210054775 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2021-02-25 [patent_title] => PISTON COOLING SYSTEM [patent_app_type] => utility [patent_app_number] => 17/092784 [patent_app_country] => US [patent_app_date] => 2020-11-09 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 5077 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -19 [patent_words_short_claim] => 68 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17092784 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/092784
Piston cooling system Nov 8, 2020 Issued
Array ( [id] => 17400355 [patent_doc_number] => 20220042445 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2022-02-10 [patent_title] => APPARATUS FOR CONTROLLING ENGINE AND METHOD THEREOF [patent_app_type] => utility [patent_app_number] => 17/091211 [patent_app_country] => US [patent_app_date] => 2020-11-06 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 5362 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -16 [patent_words_short_claim] => 102 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17091211 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/091211
Apparatus for controlling engine and method thereof Nov 5, 2020 Issued
Array ( [id] => 16916903 [patent_doc_number] => 20210189995 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2021-06-24 [patent_title] => PISTON [patent_app_type] => utility [patent_app_number] => 17/079881 [patent_app_country] => US [patent_app_date] => 2020-10-26 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 3919 [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] => 17079881 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/079881
Piston Oct 25, 2020 Issued
Array ( [id] => 16808822 [patent_doc_number] => 20210131375 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2021-05-06 [patent_title] => COMBUSTION CHAMBER STRUCTURE OF ENGINE [patent_app_type] => utility [patent_app_number] => 17/070052 [patent_app_country] => US [patent_app_date] => 2020-10-14 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 9132 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 143 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17070052 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/070052
COMBUSTION CHAMBER STRUCTURE OF ENGINE Oct 13, 2020 Abandoned
Array ( [id] => 17521074 [patent_doc_number] => 20220106923 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2022-04-07 [patent_title] => CYLINDER LINER [patent_app_type] => utility [patent_app_number] => 17/064810 [patent_app_country] => US [patent_app_date] => 2020-10-07 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 4094 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -16 [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] => 17064810 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/064810
CYLINDER LINER Oct 6, 2020 Abandoned
Array ( [id] => 18005758 [patent_doc_number] => 20220364524 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2022-11-17 [patent_title] => PISTON FOR AN INTERNAL COMBUSTION ENGINE [patent_app_type] => utility [patent_app_number] => 17/767876 [patent_app_country] => US [patent_app_date] => 2020-10-07 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 3950 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 74 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17767876 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/767876
PISTON FOR AN INTERNAL COMBUSTION ENGINE Oct 6, 2020 Abandoned
Array ( [id] => 17030283 [patent_doc_number] => 11092090 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2021-08-17 [patent_title] => Multilink cranktrains with combined eccentric shaft and camshaft drive system for internal combustion engines [patent_app_type] => utility [patent_app_number] => 17/037942 [patent_app_country] => US [patent_app_date] => 2020-09-30 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 2 [patent_figures_cnt] => 2 [patent_no_of_words] => 5713 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 142 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17037942 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/037942
Multilink cranktrains with combined eccentric shaft and camshaft drive system for internal combustion engines Sep 29, 2020 Issued
Array ( [id] => 18188108 [patent_doc_number] => 11578680 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2023-02-14 [patent_title] => Insert with sealing groove for engine block and systems, assemblies, components, and methods thereof [patent_app_type] => utility [patent_app_number] => 17/039899 [patent_app_country] => US [patent_app_date] => 2020-09-30 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 9 [patent_figures_cnt] => 13 [patent_no_of_words] => 6889 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 3 [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] => 17039899 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/039899
Insert with sealing groove for engine block and systems, assemblies, components, and methods thereof Sep 29, 2020 Issued
Array ( [id] => 19425633 [patent_doc_number] => 12085037 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2024-09-10 [patent_title] => Cylinder head for an internal combustion engine [patent_app_type] => utility [patent_app_number] => 18/029082 [patent_app_country] => US [patent_app_date] => 2020-09-28 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 6 [patent_figures_cnt] => 6 [patent_no_of_words] => 4719 [patent_no_of_claims] => 27 [patent_no_of_ind_claims] => 5 [patent_words_short_claim] => 46 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18029082 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/029082
Cylinder head for an internal combustion engine Sep 27, 2020 Issued
Array ( [id] => 16728435 [patent_doc_number] => 20210095582 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2021-04-01 [patent_title] => ENGINE WITH ROTATING VALVE ASSEMBLY [patent_app_type] => utility [patent_app_number] => 17/034971 [patent_app_country] => US [patent_app_date] => 2020-09-28 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 2600 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -8 [patent_words_short_claim] => 144 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17034971 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/034971
ENGINE WITH ROTATING VALVE ASSEMBLY Sep 27, 2020 Abandoned
Array ( [id] => 16720849 [patent_doc_number] => 20210087996 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2021-03-25 [patent_title] => Internal Combustion Engine [patent_app_type] => utility [patent_app_number] => 17/031226 [patent_app_country] => US [patent_app_date] => 2020-09-24 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 8958 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -18 [patent_words_short_claim] => 172 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17031226 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/031226
Internal combustion engine Sep 23, 2020 Issued
Array ( [id] => 16557895 [patent_doc_number] => 20210003043 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2021-01-07 [patent_title] => APPARATUS AND METHOD FOR VALVE TIMING IN AN INTERNAL COMBUSTION ENGINE [patent_app_type] => utility [patent_app_number] => 17/028028 [patent_app_country] => US [patent_app_date] => 2020-09-22 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 23612 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -42 [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] => 17028028 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/028028
Apparatus and method for valve timing in an internal combustion engine Sep 21, 2020 Issued
Array ( [id] => 16909400 [patent_doc_number] => 11041432 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2021-06-22 [patent_title] => Cylinder structure of internal combustion engine [patent_app_type] => utility [patent_app_number] => 17/028875 [patent_app_country] => US [patent_app_date] => 2020-09-22 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 7 [patent_figures_cnt] => 8 [patent_no_of_words] => 2139 [patent_no_of_claims] => 9 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 283 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17028875 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/028875
Cylinder structure of internal combustion engine Sep 21, 2020 Issued
Array ( [id] => 18658584 [patent_doc_number] => 20230304580 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-09-28 [patent_title] => PISTON RING [patent_app_type] => utility [patent_app_number] => 18/043243 [patent_app_country] => US [patent_app_date] => 2020-09-11 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 4247 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -6 [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] => 18043243 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/043243
PISTON RING Sep 10, 2020 Abandoned
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