Search

David C. Comstock

Examiner (ID: 8684, Phone: (571)272-4710 , Office: P/3733 )

Most Active Art Unit
3733
Art Unit(s)
3773, 3732, 3733
Total Applications
2114
Issued Applications
1614
Pending Applications
211
Abandoned Applications
321

Applications

Application numberTitle of the applicationFiling DateStatus
Array ( [id] => 20729565 [patent_doc_number] => 12636810 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2026-05-26 [patent_title] => Wood preservative composition comprising 4,5-dichloro-2-octylisothiazol-3(2H)-one, a method treating a wood substrate therewith, and a wood product produced therefrom [patent_app_type] => utility [patent_app_number] => 19/394355 [patent_app_country] => US [patent_app_date] => 2025-11-19 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 5430 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 69 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 19394355 [rel_patent_id] =>[rel_patent_doc_number] =>)
19/394355
Wood preservative composition comprising 4,5-dichloro-2-octylisothiazol-3(2H)-one, a method treating a wood substrate therewith, and a wood product produced therefrom Nov 18, 2025 Issued
Array ( [id] => 20585251 [patent_doc_number] => 20260070842 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2026-03-12 [patent_title] => POZZOLAN-BASED ADDITIVE AGENT AND USES THEREOF [patent_app_type] => utility [patent_app_number] => 19/389152 [patent_app_country] => US [patent_app_date] => 2025-11-14 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 1710 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -18 [patent_words_short_claim] => 28 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 19389152 [rel_patent_id] =>[rel_patent_doc_number] =>)
19/389152
POZZOLAN-BASED ADDITIVE AGENT AND USES THEREOF Nov 13, 2025 Pending
Array ( [id] => 20542145 [patent_doc_number] => 20260049035 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2026-02-19 [patent_title] => LIME-BASED CEMENT EXTENDER COMPOSITIONS, AND ASSOCIATED SYSTEMS AND METHODS [patent_app_type] => utility [patent_app_number] => 19/323697 [patent_app_country] => US [patent_app_date] => 2025-09-09 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 2641 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -15 [patent_words_short_claim] => 77 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 19323697 [rel_patent_id] =>[rel_patent_doc_number] =>)
19/323697
LIME-BASED CEMENT EXTENDER COMPOSITIONS, AND ASSOCIATED SYSTEMS AND METHODS Sep 8, 2025 Pending
Array ( [id] => 20309060 [patent_doc_number] => 20250326689 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-10-23 [patent_title] => Geopolymer Formulations for Construction Materials [patent_app_type] => utility [patent_app_number] => 19/181124 [patent_app_country] => US [patent_app_date] => 2025-04-16 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 20558 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -19 [patent_words_short_claim] => 36 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 19181124 [rel_patent_id] =>[rel_patent_doc_number] =>)
19/181124
Geopolymer formulations for construction materials Apr 15, 2025 Issued
Array ( [id] => 20505834 [patent_doc_number] => 12540101 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2026-02-03 [patent_title] => Non-hydraulically reactive particulate mineral compositions for reducing cement content in concrete [patent_app_type] => utility [patent_app_number] => 19/096059 [patent_app_country] => US [patent_app_date] => 2025-03-31 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 931 [patent_no_of_claims] => 21 [patent_no_of_ind_claims] => 4 [patent_words_short_claim] => 82 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 19096059 [rel_patent_id] =>[rel_patent_doc_number] =>)
19/096059
Non-hydraulically reactive particulate mineral compositions for reducing cement content in concrete Mar 30, 2025 Issued
Array ( [id] => 19904048 [patent_doc_number] => 12281044 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2025-04-22 [patent_title] => Concrete composition including nanosilica derived from glass waste [patent_app_type] => utility [patent_app_number] => 18/919815 [patent_app_country] => US [patent_app_date] => 2024-10-18 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 2 [patent_figures_cnt] => 3 [patent_no_of_words] => 0 [patent_no_of_claims] => 21 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 66 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18919815 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/919815
Concrete composition including nanosilica derived from glass waste Oct 17, 2024 Issued
Array ( [id] => 19692703 [patent_doc_number] => 20250011248 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-01-09 [patent_title] => COMPOSITIONS FOR IMPROVED CONCRETE PERFORMANCE [patent_app_type] => utility [patent_app_number] => 18/882891 [patent_app_country] => US [patent_app_date] => 2024-09-12 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 11316 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -21 [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] => 18882891 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/882891
COMPOSITIONS FOR IMPROVED CONCRETE PERFORMANCE Sep 11, 2024 Pending
Array ( [id] => 19658350 [patent_doc_number] => 20240425415 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-12-26 [patent_title] => LIME-BASED CEMENT EXTENDER COMPOSITIONS, AND ASSOCIATED SYSTEMS AND METHODS [patent_app_type] => utility [patent_app_number] => 18/828783 [patent_app_country] => US [patent_app_date] => 2024-09-09 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 7271 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -16 [patent_words_short_claim] => 36 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18828783 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/828783
Lime-based cement extender compositions, and associated systems and methods Sep 8, 2024 Issued
Array ( [id] => 19931664 [patent_doc_number] => 12304861 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2025-05-20 [patent_title] => Lightweight solid waste porous aggregate, and preparation method and use thereof [patent_app_type] => utility [patent_app_number] => 18/777753 [patent_app_country] => US [patent_app_date] => 2024-07-19 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 5 [patent_figures_cnt] => 7 [patent_no_of_words] => 2022 [patent_no_of_claims] => 11 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 292 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18777753 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/777753
Lightweight solid waste porous aggregate, and preparation method and use thereof Jul 18, 2024 Issued
Array ( [id] => 19692687 [patent_doc_number] => 20250011232 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-01-09 [patent_title] => LIME AND HYDRAULIC CEMENT MANUFACTURE USING, HYALOCLASTITE OR LAVA, AND METHOD OF MAKING AND USING SAME [patent_app_type] => utility [patent_app_number] => 18/765282 [patent_app_country] => US [patent_app_date] => 2024-07-07 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 14351 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -18 [patent_words_short_claim] => 23 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18765282 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/765282
Lime and hydraulic cement manufacture using, hyaloclastite or lava, and method of making and using same Jul 6, 2024 Issued
Array ( [id] => 19521019 [patent_doc_number] => 12122726 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2024-10-22 [patent_title] => Portland cement clinker manufacture using hyaloclastite or lava and method of making and using same [patent_app_type] => utility [patent_app_number] => 18/737977 [patent_app_country] => US [patent_app_date] => 2024-06-08 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 17108 [patent_no_of_claims] => 19 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 31 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18737977 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/737977
Portland cement clinker manufacture using hyaloclastite or lava and method of making and using same Jun 7, 2024 Issued
Array ( [id] => 19615599 [patent_doc_number] => 20240401279 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-12-05 [patent_title] => SURFACE SIZING AGENT FOR PAPER AND/OR CARDBOARD [patent_app_type] => utility [patent_app_number] => 18/679507 [patent_app_country] => US [patent_app_date] => 2024-05-31 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 6485 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -10 [patent_words_short_claim] => 72 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18679507 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/679507
SURFACE SIZING AGENT FOR PAPER AND/OR CARDBOARD May 30, 2024 Pending
Array ( [id] => 19948272 [patent_doc_number] => 12319619 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2025-06-03 [patent_title] => Lime-based cement extender compositions, and associated systems and methods [patent_app_type] => utility [patent_app_number] => 18/677009 [patent_app_country] => US [patent_app_date] => 2024-05-29 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 5 [patent_no_of_words] => 2652 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 96 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18677009 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/677009
Lime-based cement extender compositions, and associated systems and methods May 28, 2024 Issued
Array ( [id] => 19504903 [patent_doc_number] => 12116314 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2024-10-15 [patent_title] => Device and method for improving the toughness of concrete by solving fiber agglomeration [patent_app_type] => utility [patent_app_number] => 18/668296 [patent_app_country] => US [patent_app_date] => 2024-05-20 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 1 [patent_figures_cnt] => 1 [patent_no_of_words] => 2465 [patent_no_of_claims] => 7 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 71 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18668296 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/668296
Device and method for improving the toughness of concrete by solving fiber agglomeration May 19, 2024 Issued
Array ( [id] => 19930775 [patent_doc_number] => 12303969 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2025-05-20 [patent_title] => Mold compositions for additive casting of metal objects [patent_app_type] => utility [patent_app_number] => 18/658391 [patent_app_country] => US [patent_app_date] => 2024-05-08 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 10 [patent_figures_cnt] => 21 [patent_no_of_words] => 9893 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 266 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18658391 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/658391
Mold compositions for additive casting of metal objects May 7, 2024 Issued
Array ( [id] => 19528046 [patent_doc_number] => 20240351948 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-10-24 [patent_title] => CARBON MINERALIZATION AND SEQUESTRATION USING CARBONATABLE MINERALS, HYALOCLASTITE, LAVA, FLY ASH, BOTTOM ASH, SLAG AND METHOD OF MAKING AND USING SAME [patent_app_type] => utility [patent_app_number] => 18/643867 [patent_app_country] => US [patent_app_date] => 2024-04-23 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 36471 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 73 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18643867 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/643867
Carbon mineralization and sequestration using carbonatable minerals, hyaloclastite, lava, fly ash, bottom ash, slag and method of making and using same Apr 22, 2024 Issued
Array ( [id] => 19884275 [patent_doc_number] => 12269968 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2025-04-08 [patent_title] => Low VOC water-borne colorant compositions with improved microbial resistance and method for assessing microbial resistance of colorant compositions [patent_app_type] => utility [patent_app_number] => 18/641679 [patent_app_country] => US [patent_app_date] => 2024-04-22 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 2 [patent_figures_cnt] => 2 [patent_no_of_words] => 7507 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 182 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18641679 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/641679
Low VOC water-borne colorant compositions with improved microbial resistance and method for assessing microbial resistance of colorant compositions Apr 21, 2024 Issued
Array ( [id] => 20248211 [patent_doc_number] => 20250297080 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-09-25 [patent_title] => HYALOCLASTITE MINERAL RUBBER FILLER, HYALOCLASTITE RUBBER COMPOSITIONS AND PRODUCTS, AND METHOD OF MAKING AND USING SAME [patent_app_type] => utility [patent_app_number] => 18/612108 [patent_app_country] => US [patent_app_date] => 2024-03-21 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 11609 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 25 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18612108 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/612108
HYALOCLASTITE MINERAL RUBBER FILLER, HYALOCLASTITE RUBBER COMPOSITIONS AND PRODUCTS, AND METHOD OF MAKING AND USING SAME Mar 20, 2024 Pending
Array ( [id] => 20232639 [patent_doc_number] => 20250289958 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-09-18 [patent_title] => BIFUNCTIONAL PIGMENT [patent_app_type] => utility [patent_app_number] => 18/605629 [patent_app_country] => US [patent_app_date] => 2024-03-14 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 3599 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 121 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18605629 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/605629
BIFUNCTIONAL PIGMENT Mar 13, 2024 Pending
Array ( [id] => 19449083 [patent_doc_number] => 20240309213 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-09-19 [patent_title] => Oxide Ceramic With Pigment [patent_app_type] => utility [patent_app_number] => 18/605719 [patent_app_country] => US [patent_app_date] => 2024-03-14 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 6656 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -16 [patent_words_short_claim] => 30 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18605719 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/605719
Oxide Ceramic With Pigment Mar 13, 2024 Pending
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