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] => 20547941 [patent_doc_number] => 12558716 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2026-02-24 [patent_title] => In-situ mycoremediation system and process [patent_app_type] => utility [patent_app_number] => 19/220224 [patent_app_country] => US [patent_app_date] => 2025-05-28 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 9 [patent_figures_cnt] => 9 [patent_no_of_words] => 3588 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 138 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 19220224 [rel_patent_id] =>[rel_patent_doc_number] =>)
19/220224
In-situ mycoremediation system and process May 27, 2025 Issued
Array ( [id] => 20219024 [patent_doc_number] => 20250281955 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-09-11 [patent_title] => IN-SITU MYCOREMEDIATION SYSTEM AND PROCESS [patent_app_type] => utility [patent_app_number] => 19/215317 [patent_app_country] => US [patent_app_date] => 2025-05-21 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 3584 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [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] => 19215317 [rel_patent_id] =>[rel_patent_doc_number] =>)
19/215317
IN-SITU MYCOREMEDIATION SYSTEM AND PROCESS May 20, 2025 Pending
Array ( [id] => 20067398 [patent_doc_number] => 20250205620 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-06-26 [patent_title] => FLUID FILTER AND HOUSING FOR THE FLUID FILTER [patent_app_type] => utility [patent_app_number] => 19/016465 [patent_app_country] => US [patent_app_date] => 2025-01-10 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 1898 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -12 [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] => 19016465 [rel_patent_id] =>[rel_patent_doc_number] =>)
19/016465
Fluid filter and housing for the fluid filter Jan 9, 2025 Issued
Array ( [id] => 20663904 [patent_doc_number] => 12605657 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2026-04-21 [patent_title] => Filtration system with improved standpipe design [patent_app_type] => utility [patent_app_number] => 18/933383 [patent_app_country] => US [patent_app_date] => 2024-10-31 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 7 [patent_figures_cnt] => 12 [patent_no_of_words] => 0 [patent_no_of_claims] => 5 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 180 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18933383 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/933383
Filtration system with improved standpipe design Oct 30, 2024 Issued
Array ( [id] => 19954598 [patent_doc_number] => 12324997 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2025-06-10 [patent_title] => Raw water filtering device [patent_app_type] => utility [patent_app_number] => 18/898713 [patent_app_country] => US [patent_app_date] => 2024-09-27 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 7 [patent_figures_cnt] => 8 [patent_no_of_words] => 2569 [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] => 18898713 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/898713
Raw water filtering device Sep 26, 2024 Issued
Array ( [id] => 19447672 [patent_doc_number] => 20240307802 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-09-19 [patent_title] => FILTER WITH IMPROVED FLUID FLOW [patent_app_type] => utility [patent_app_number] => 18/673110 [patent_app_country] => US [patent_app_date] => 2024-05-23 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 5214 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 62 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18673110 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/673110
FILTER WITH IMPROVED FLUID FLOW May 22, 2024 Pending
Array ( [id] => 19599943 [patent_doc_number] => 20240390823 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-11-28 [patent_title] => DISCHARGE FILTER PLATE ASSEMBLY FOR FILTER PRESS [patent_app_type] => utility [patent_app_number] => 18/644434 [patent_app_country] => US [patent_app_date] => 2024-04-24 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 7506 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 141 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18644434 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/644434
DISCHARGE FILTER PLATE ASSEMBLY FOR FILTER PRESS Apr 23, 2024 Pending
Array ( [id] => 19359677 [patent_doc_number] => 20240261711 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-08-08 [patent_title] => VALVE ARRANGEMENT, LIQUID FILTERS, FILTER ASSEMBLIES, AND METHOD [patent_app_type] => utility [patent_app_number] => 18/617267 [patent_app_country] => US [patent_app_date] => 2024-03-26 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 18749 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -21 [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] => 18617267 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/617267
VALVE ARRANGEMENT, LIQUID FILTERS, FILTER ASSEMBLIES, AND METHOD Mar 25, 2024 Pending
Array ( [id] => 19839290 [patent_doc_number] => 12251650 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2025-03-18 [patent_title] => Filter element with keyed spinning thread-on attachment [patent_app_type] => utility [patent_app_number] => 18/603389 [patent_app_country] => US [patent_app_date] => 2024-03-13 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 10 [patent_figures_cnt] => 19 [patent_no_of_words] => 7134 [patent_no_of_claims] => 25 [patent_no_of_ind_claims] => 4 [patent_words_short_claim] => 169 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18603389 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/603389
Filter element with keyed spinning thread-on attachment Mar 12, 2024 Issued
Array ( [id] => 19700393 [patent_doc_number] => 12194395 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2025-01-14 [patent_title] => Replaceable filter cartridge assembly [patent_app_type] => utility [patent_app_number] => 18/581105 [patent_app_country] => US [patent_app_date] => 2024-02-19 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 15 [patent_figures_cnt] => 15 [patent_no_of_words] => 3048 [patent_no_of_claims] => 7 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 243 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18581105 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/581105
Replaceable filter cartridge assembly Feb 18, 2024 Issued
Array ( [id] => 19380735 [patent_doc_number] => 20240270605 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-08-15 [patent_title] => FILTRATION DEVICE FOR A WATER-CONDUCTING HOUSEHOLD APPLIANCE [patent_app_type] => utility [patent_app_number] => 18/441100 [patent_app_country] => US [patent_app_date] => 2024-02-14 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 4813 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -9 [patent_words_short_claim] => 91 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18441100 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/441100
FILTRATION DEVICE FOR A WATER-CONDUCTING HOUSEHOLD APPLIANCE Feb 13, 2024 Pending
Array ( [id] => 19360698 [patent_doc_number] => 20240262732 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-08-08 [patent_title] => CLEAN WATER EXTRACTION AND PURIFICATION SYSTEM AND METHOD [patent_app_type] => utility [patent_app_number] => 18/435538 [patent_app_country] => US [patent_app_date] => 2024-02-07 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 2033 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -14 [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] => 18435538 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/435538
CLEAN WATER EXTRACTION AND PURIFICATION SYSTEM AND METHOD Feb 6, 2024 Pending
Array ( [id] => 19684888 [patent_doc_number] => 20250003433 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-01-02 [patent_title] => METHOD AND APPARATUS FOR IMPROVING FLUID BEHAVIOR AND PERFORMANCE [patent_app_type] => utility [patent_app_number] => 18/433425 [patent_app_country] => US [patent_app_date] => 2024-02-06 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 5458 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -12 [patent_words_short_claim] => 9 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18433425 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/433425
METHOD AND APPARATUS FOR IMPROVING FLUID BEHAVIOR AND PERFORMANCE Feb 5, 2024 Pending
Array ( [id] => 19201758 [patent_doc_number] => 20240173657 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-05-30 [patent_title] => FILTER INTERCONNECT USING A MAGNETIC SHEAR FORCE [patent_app_type] => utility [patent_app_number] => 18/434124 [patent_app_country] => US [patent_app_date] => 2024-02-06 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 4925 [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] => 18434124 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/434124
FILTER INTERCONNECT USING A MAGNETIC SHEAR FORCE Feb 5, 2024 Pending
Array ( [id] => 19846569 [patent_doc_number] => 20250091920 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-03-20 [patent_title] => System and Method for the Control of Mixed Liquor Fermentation [patent_app_type] => utility [patent_app_number] => 18/433032 [patent_app_country] => US [patent_app_date] => 2024-02-05 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 9328 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -15 [patent_words_short_claim] => 177 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18433032 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/433032
System and Method for the Control of Mixed Liquor Fermentation Feb 4, 2024 Pending
Array ( [id] => 19630103 [patent_doc_number] => 20240408552 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-12-12 [patent_title] => METHOD FOR PREPARING A NOVEL GUANIDINE-BASED COMPOSITE NANOFILTRATION FLAT-SHEET MEMBRANE [patent_app_type] => utility [patent_app_number] => 18/433346 [patent_app_country] => US [patent_app_date] => 2024-02-05 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 2570 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -8 [patent_words_short_claim] => 53 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18433346 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/433346
METHOD FOR PREPARING A NOVEL GUANIDINE-BASED COMPOSITE NANOFILTRATION FLAT-SHEET MEMBRANE Feb 4, 2024 Pending
Array ( [id] => 19201757 [patent_doc_number] => 20240173656 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-05-30 [patent_title] => Liquid Recovery Filter [patent_app_type] => utility [patent_app_number] => 18/432435 [patent_app_country] => US [patent_app_date] => 2024-02-05 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 40379 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -5 [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] => 18432435 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/432435
Liquid Recovery Filter Feb 4, 2024 Pending
Array ( [id] => 19216689 [patent_doc_number] => 20240181393 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-06-06 [patent_title] => CARTRIDGE FILTER [patent_app_type] => utility [patent_app_number] => 18/428897 [patent_app_country] => US [patent_app_date] => 2024-01-31 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 5963 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -18 [patent_words_short_claim] => 109 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18428897 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/428897
Cartridge filter Jan 30, 2024 Issued
Array ( [id] => 19186632 [patent_doc_number] => 20240165545 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-05-23 [patent_title] => FILTER INTERCONNECT UTILIZING A MAGNETIC REPULSION FORCE [patent_app_type] => utility [patent_app_number] => 18/427187 [patent_app_country] => US [patent_app_date] => 2024-01-30 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 9921 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -8 [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] => 18427187 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/427187
FILTER INTERCONNECT UTILIZING A MAGNETIC REPULSION FORCE Jan 29, 2024 Pending
Array ( [id] => 20136051 [patent_doc_number] => 20250243095 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-07-31 [patent_title] => UV RADIATION APPARATUS FOR TREATING FLUIDS [patent_app_type] => utility [patent_app_number] => 18/422226 [patent_app_country] => US [patent_app_date] => 2024-01-25 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 3804 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -18 [patent_words_short_claim] => 218 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18422226 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/422226
UV RADIATION APPARATUS FOR TREATING FLUIDS Jan 24, 2024 Pending
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