Search

Douglas M. Willis

Examiner (ID: 12008, Phone: (571)270-5757 , Office: P/1624 )

Most Active Art Unit
1624
Art Unit(s)
1624
Total Applications
2476
Issued Applications
1792
Pending Applications
142
Abandoned Applications
578

Applications

Application numberTitle of the applicationFiling DateStatus
Array ( [id] => 17184221 [patent_doc_number] => 20210331106 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2021-10-28 [patent_title] => OIL, DEBRIS SEPARATOR, FILTER AND MUFFLER STRUCTURE [patent_app_type] => utility [patent_app_number] => 16/855074 [patent_app_country] => US [patent_app_date] => 2020-04-22 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 4961 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -18 [patent_words_short_claim] => 59 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16855074 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/855074
OIL, DEBRIS SEPARATOR, FILTER AND MUFFLER STRUCTURE Apr 21, 2020 Abandoned
Array ( [id] => 18182507 [patent_doc_number] => 20230043237 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-02-09 [patent_title] => A FILTER DIAPHRAGM FOR A HORIZONTAL PLATE AND FRAME-TYPE FILTER, SUCH AS A TOWER PRESS [patent_app_type] => utility [patent_app_number] => 17/792850 [patent_app_country] => US [patent_app_date] => 2020-04-17 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 4733 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -15 [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] => 17792850 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/792850
Filter diaphragm for a horizontal plate and frame-type filter, such as a tower press Apr 16, 2020 Issued
Array ( [id] => 20328650 [patent_doc_number] => 12458910 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2025-11-04 [patent_title] => Filter plate frame assembly, a horizontal filter press, such as a tower press, having such a plate frame assembly, and a method of replacing worn components of horizontal filter press [patent_app_type] => utility [patent_app_number] => 17/792853 [patent_app_country] => US [patent_app_date] => 2020-04-17 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 2 [patent_figures_cnt] => 4 [patent_no_of_words] => 0 [patent_no_of_claims] => 13 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 238 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17792853 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/792853
Filter plate frame assembly, a horizontal filter press, such as a tower press, having such a plate frame assembly, and a method of replacing worn components of horizontal filter press Apr 16, 2020 Issued
Array ( [id] => 17034456 [patent_doc_number] => 20210251414 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2021-08-19 [patent_title] => FOLDABLE POUR OVER COFFEE DRIPPER [patent_app_type] => utility [patent_app_number] => 16/849380 [patent_app_country] => US [patent_app_date] => 2020-04-15 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 1772 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -11 [patent_words_short_claim] => 259 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16849380 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/849380
Foldable pour over coffee dripper Apr 14, 2020 Issued
Array ( [id] => 17155185 [patent_doc_number] => 20210316236 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2021-10-14 [patent_title] => ADAPTER FOR FILTER DEVICE AND METHOD OF USE [patent_app_type] => utility [patent_app_number] => 16/846574 [patent_app_country] => US [patent_app_date] => 2020-04-13 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 5345 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -18 [patent_words_short_claim] => 285 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16846574 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/846574
Adapter for filter device and method of use Apr 12, 2020 Issued
Array ( [id] => 16177138 [patent_doc_number] => 20200224106 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2020-07-16 [patent_title] => SYSTEM FOR FILTERING LIQUIDS AND PARTICULATES FROM HYDROCARBONS [patent_app_type] => utility [patent_app_number] => 16/837679 [patent_app_country] => US [patent_app_date] => 2020-04-01 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 5923 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -18 [patent_words_short_claim] => 142 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16837679 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/837679
SYSTEM FOR FILTERING LIQUIDS AND PARTICULATES FROM HYDROCARBONS Mar 31, 2020 Abandoned
Array ( [id] => 16341371 [patent_doc_number] => 20200306021 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2020-10-01 [patent_title] => HIGH EFFICIENCY DENTAL CHAIR-SIDE TRAP INSERT [patent_app_type] => utility [patent_app_number] => 16/832033 [patent_app_country] => US [patent_app_date] => 2020-03-27 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 2231 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -7 [patent_words_short_claim] => 76 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16832033 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/832033
HIGH EFFICIENCY DENTAL CHAIR-SIDE TRAP INSERT Mar 26, 2020 Abandoned
Array ( [id] => 16342023 [patent_doc_number] => 20200306673 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2020-10-01 [patent_title] => Wall Mounting System [patent_app_type] => utility [patent_app_number] => 16/828208 [patent_app_country] => US [patent_app_date] => 2020-03-24 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 5079 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -14 [patent_words_short_claim] => 333 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16828208 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/828208
Wall mounting system Mar 23, 2020 Issued
Array ( [id] => 17540110 [patent_doc_number] => 11305215 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2022-04-19 [patent_title] => Filter device [patent_app_type] => utility [patent_app_number] => 16/826025 [patent_app_country] => US [patent_app_date] => 2020-03-20 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 5 [patent_figures_cnt] => 5 [patent_no_of_words] => 5513 [patent_no_of_claims] => 5 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 232 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16826025 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/826025
Filter device Mar 19, 2020 Issued
Array ( [id] => 17634121 [patent_doc_number] => 11344827 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2022-05-31 [patent_title] => Microcarrier filter bag assemblies and methods of use [patent_app_type] => utility [patent_app_number] => 16/820007 [patent_app_country] => US [patent_app_date] => 2020-03-16 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 9 [patent_figures_cnt] => 15 [patent_no_of_words] => 9632 [patent_no_of_claims] => 16 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 168 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16820007 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/820007
Microcarrier filter bag assemblies and methods of use Mar 15, 2020 Issued
Array ( [id] => 17798624 [patent_doc_number] => 11412882 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2022-08-16 [patent_title] => Funnel assembly for making powdered beverage [patent_app_type] => utility [patent_app_number] => 16/804583 [patent_app_country] => US [patent_app_date] => 2020-02-28 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 25 [patent_figures_cnt] => 26 [patent_no_of_words] => 16554 [patent_no_of_claims] => 23 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 206 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16804583 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/804583
Funnel assembly for making powdered beverage Feb 27, 2020 Issued
Array ( [id] => 16269401 [patent_doc_number] => 20200270888 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2020-08-27 [patent_title] => FILTER ASSEMBLY HAVING AN OUTER FILTER ELEMENT AND AN INNER FILTER ELEMENT REMOVABLY INSTALLED WITHIN THE OUTER FILTER ELEMENT [patent_app_type] => utility [patent_app_number] => 16/805505 [patent_app_country] => US [patent_app_date] => 2020-02-28 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 5679 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -14 [patent_words_short_claim] => 107 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16805505 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/805505
Filter assembly having an outer filter element and an inner filter element removably installed within the outer filter element Feb 27, 2020 Issued
Array ( [id] => 16282919 [patent_doc_number] => 20200276521 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2020-09-03 [patent_title] => RING FILTER ELEMENT [patent_app_type] => utility [patent_app_number] => 16/803622 [patent_app_country] => US [patent_app_date] => 2020-02-27 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 1985 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 45 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16803622 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/803622
Ring filter element Feb 26, 2020 Issued
Array ( [id] => 17570145 [patent_doc_number] => 11318399 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2022-05-03 [patent_title] => Locking feature for a filter [patent_app_type] => utility [patent_app_number] => 16/799121 [patent_app_country] => US [patent_app_date] => 2020-02-24 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 10 [patent_figures_cnt] => 12 [patent_no_of_words] => 9353 [patent_no_of_claims] => 4 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 259 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16799121 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/799121
Locking feature for a filter Feb 23, 2020 Issued
Array ( [id] => 17570146 [patent_doc_number] => 11318400 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2022-05-03 [patent_title] => Top and bottom loaded filter and locking mechanism [patent_app_type] => utility [patent_app_number] => 16/799193 [patent_app_country] => US [patent_app_date] => 2020-02-24 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 10 [patent_figures_cnt] => 12 [patent_no_of_words] => 9502 [patent_no_of_claims] => 6 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 318 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16799193 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/799193
Top and bottom loaded filter and locking mechanism Feb 23, 2020 Issued
Array ( [id] => 17578579 [patent_doc_number] => 20220135434 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2022-05-05 [patent_title] => RAPID ENZYME ACTIVITY MEASUREMENT SYSTEM AND METHOD [patent_app_type] => utility [patent_app_number] => 17/430531 [patent_app_country] => US [patent_app_date] => 2020-02-24 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 7808 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -18 [patent_words_short_claim] => 75 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17430531 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/430531
RAPID ENZYME ACTIVITY MEASUREMENT SYSTEM AND METHOD Feb 23, 2020 Abandoned
Array ( [id] => 17220952 [patent_doc_number] => 11173436 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2021-11-16 [patent_title] => Connector assembly, filter assembly, filter device, and method of use [patent_app_type] => utility [patent_app_number] => 16/795996 [patent_app_country] => US [patent_app_date] => 2020-02-20 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 10 [patent_figures_cnt] => 12 [patent_no_of_words] => 4581 [patent_no_of_claims] => 8 [patent_no_of_ind_claims] => 4 [patent_words_short_claim] => 241 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16795996 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/795996
Connector assembly, filter assembly, filter device, and method of use Feb 19, 2020 Issued
Array ( [id] => 17512814 [patent_doc_number] => 11291934 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2022-04-05 [patent_title] => End cap assembly, filter, and method of use [patent_app_type] => utility [patent_app_number] => 16/796005 [patent_app_country] => US [patent_app_date] => 2020-02-20 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 13 [patent_figures_cnt] => 16 [patent_no_of_words] => 6382 [patent_no_of_claims] => 8 [patent_no_of_ind_claims] => 6 [patent_words_short_claim] => 275 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16796005 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/796005
End cap assembly, filter, and method of use Feb 19, 2020 Issued
Array ( [id] => 16284435 [patent_doc_number] => 20200278037 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2020-09-03 [patent_title] => PRESSURE CONTROL DEVICE [patent_app_type] => utility [patent_app_number] => 16/794179 [patent_app_country] => US [patent_app_date] => 2020-02-18 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 8768 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -7 [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] => 16794179 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/794179
PRESSURE CONTROL DEVICE Feb 17, 2020 Abandoned
Array ( [id] => 16009981 [patent_doc_number] => 20200179833 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2020-06-11 [patent_title] => Filter System, Filter, and Method [patent_app_type] => utility [patent_app_number] => 16/790230 [patent_app_country] => US [patent_app_date] => 2020-02-13 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 6266 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 271 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16790230 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/790230
Filter system, filter, and method Feb 12, 2020 Issued
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