Search

David Thomas Karst

Examiner (ID: 10871, Phone: (571)270-7732 , Office: P/1767 )

Most Active Art Unit
1767
Art Unit(s)
1767, 1796
Total Applications
1136
Issued Applications
657
Pending Applications
125
Abandoned Applications
381

Applications

Application numberTitle of the applicationFiling DateStatus
Array ( [id] => 20795583 [patent_doc_number] => 20260176482 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2026-06-25 [patent_title] => Coating Compositions, Films, And Methods [patent_app_type] => utility [patent_app_number] => 19/537011 [patent_app_country] => US [patent_app_date] => 2026-02-11 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 17071 [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] => 19537011 [rel_patent_id] =>[rel_patent_doc_number] =>)
19/537011
Coating Compositions, Films, And Methods Feb 10, 2026 Pending
Array ( [id] => 19785633 [patent_doc_number] => 20250059312 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-02-20 [patent_title] => HEAT-CURABLE MALEIMIDE RESIN COMPOSITION [patent_app_type] => utility [patent_app_number] => 18/932752 [patent_app_country] => US [patent_app_date] => 2024-10-31 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 10195 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -9 [patent_words_short_claim] => 179 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18932752 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/932752
HEAT-CURABLE MALEIMIDE RESIN COMPOSITION Oct 30, 2024 Pending
Array ( [id] => 19709249 [patent_doc_number] => 20250019391 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-01-16 [patent_title] => PROCESSED LIGNIN AND PROCESS TO PREPARE SUCH [patent_app_type] => utility [patent_app_number] => 18/903397 [patent_app_country] => US [patent_app_date] => 2024-10-01 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 4836 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -5 [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] => 18903397 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/903397
PROCESSED LIGNIN AND PROCESS TO PREPARE SUCH Sep 30, 2024 Abandoned
Array ( [id] => 19770194 [patent_doc_number] => 20250051620 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-02-13 [patent_title] => ELECTROMAGNETIC CURABLE NOVEL TOUGHENED EPOXY-HYBRID STRUCTURAL ADHESIVES AND APPLICATIONS USING THE SAME [patent_app_type] => utility [patent_app_number] => 18/901501 [patent_app_country] => US [patent_app_date] => 2024-09-30 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 6394 [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] => 18901501 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/901501
ELECTROMAGNETIC CURABLE NOVEL TOUGHENED EPOXY-HYBRID STRUCTURAL ADHESIVES AND APPLICATIONS USING THE SAME Sep 29, 2024 Pending
Array ( [id] => 19800631 [patent_doc_number] => 20250066556 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-02-27 [patent_title] => METHANOL EXPLOSION OF CELLULOSIC FIBERS AND THEIR USES [patent_app_type] => utility [patent_app_number] => 18/789050 [patent_app_country] => US [patent_app_date] => 2024-07-30 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 19210 [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] => 18789050 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/789050
METHANOL EXPLOSION OF CELLULOSIC FIBERS AND THEIR USES Jul 29, 2024 Pending
Array ( [id] => 19556545 [patent_doc_number] => 20240368337 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-11-07 [patent_title] => MODIFIED PHENALKAMINE CURING AGENT FOR EPOXY RESIN COMPOSITION AND USE THEREOF [patent_app_type] => utility [patent_app_number] => 18/774105 [patent_app_country] => US [patent_app_date] => 2024-07-16 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 5007 [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] => 18774105 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/774105
MODIFIED PHENALKAMINE CURING AGENT FOR EPOXY RESIN COMPOSITION AND USE THEREOF Jul 15, 2024 Pending
Array ( [id] => 20849712 [patent_doc_number] => 12686736 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2026-07-21 [patent_title] => Composite material and molded composite material [patent_app_type] => utility [patent_app_number] => 18/651899 [patent_app_country] => US [patent_app_date] => 2024-05-01 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 4352 [patent_no_of_claims] => 8 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 60 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18651899 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/651899
COMPOSITE MATERIAL AND MOLDED COMPOSITE MATERIAL Apr 30, 2024 Issued
Array ( [id] => 19360970 [patent_doc_number] => 20240263004 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-08-08 [patent_title] => RESIN COMPOSITION FOR ENCAPSULATION AND SEMICONDUCTOR DEVICE [patent_app_type] => utility [patent_app_number] => 18/631187 [patent_app_country] => US [patent_app_date] => 2024-04-10 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 8044 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -6 [patent_words_short_claim] => 57 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18631187 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/631187
RESIN COMPOSITION FOR ENCAPSULATION AND SEMICONDUCTOR DEVICE Apr 9, 2024 Pending
Array ( [id] => 20272079 [patent_doc_number] => 12441848 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2025-10-14 [patent_title] => Methods for the continuous polymerization of phosphate compounds to form polyphosphate compositions [patent_app_type] => utility [patent_app_number] => 18/444827 [patent_app_country] => US [patent_app_date] => 2024-02-19 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 4 [patent_no_of_words] => 3782 [patent_no_of_claims] => 17 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 129 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18444827 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/444827
Methods for the continuous polymerization of phosphate compounds to form polyphosphate compositions Feb 18, 2024 Issued
Array ( [id] => 19424960 [patent_doc_number] => 12084359 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2024-09-10 [patent_title] => Synthesis of positively charged hydrogels for anionic pollutant removal [patent_app_type] => utility [patent_app_number] => 18/403431 [patent_app_country] => US [patent_app_date] => 2024-01-03 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 1896 [patent_no_of_claims] => 6 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 70 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18403431 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/403431
Synthesis of positively charged hydrogels for anionic pollutant removal Jan 2, 2024 Issued
Array ( [id] => 19332670 [patent_doc_number] => 20240247100 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-07-25 [patent_title] => CLEAVABLE POLYMERS [patent_app_type] => utility [patent_app_number] => 18/397035 [patent_app_country] => US [patent_app_date] => 2023-12-27 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 29757 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -9 [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] => 18397035 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/397035
CLEAVABLE POLYMERS Dec 26, 2023 Pending
Array ( [id] => 20068660 [patent_doc_number] => 20250206882 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-06-26 [patent_title] => Polyamide 56 Composition with Reduced Moisture Absorption [patent_app_type] => utility [patent_app_number] => 18/393821 [patent_app_country] => US [patent_app_date] => 2023-12-22 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 0 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -18 [patent_words_short_claim] => 27 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18393821 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/393821
Polyamide 56 Composition with Reduced Moisture Absorption Dec 21, 2023 Pending
Array ( [id] => 19083227 [patent_doc_number] => 20240110028 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-04-04 [patent_title] => FIRE RESISTANT THERMOPLASTIC-BASED RESIN FOR FIBER-REINFORCED COMPOSITES [patent_app_type] => utility [patent_app_number] => 18/539001 [patent_app_country] => US [patent_app_date] => 2023-12-13 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 4670 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -9 [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] => 18539001 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/539001
FIRE RESISTANT THERMOPLASTIC-BASED RESIN FOR FIBER-REINFORCED COMPOSITES Dec 12, 2023 Pending
Array ( [id] => 19318413 [patent_doc_number] => 20240239956 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-07-18 [patent_title] => BIODEGRADABLE ELASTOMERIC COMPOSITIONS AND METHODS OF MAKING THE SAME [patent_app_type] => utility [patent_app_number] => 18/529459 [patent_app_country] => US [patent_app_date] => 2023-12-05 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 14778 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -25 [patent_words_short_claim] => 22 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18529459 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/529459
BIODEGRADABLE ELASTOMERIC COMPOSITIONS AND METHODS OF MAKING THE SAME Dec 4, 2023 Pending
Array ( [id] => 19083284 [patent_doc_number] => 20240110085 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-04-04 [patent_title] => HIGH MODULUS, TOUGHENED ONE-COMPONENT EPOXY STRUCTURAL ADHESIVES WITH HIGH ASPECT RATIO FILLERS [patent_app_type] => utility [patent_app_number] => 18/528894 [patent_app_country] => US [patent_app_date] => 2023-12-05 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 8305 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 164 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18528894 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/528894
High modulus, toughened one-component epoxy structural adhesives with high aspect ratio fillers Dec 4, 2023 Issued
Array ( [id] => 19097015 [patent_doc_number] => 20240116242 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-04-11 [patent_title] => THREE-DIMENSIONAL PRINTING [patent_app_type] => utility [patent_app_number] => 18/527120 [patent_app_country] => US [patent_app_date] => 2023-12-01 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 15765 [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] => 18527120 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/527120
THREE-DIMENSIONAL PRINTING Nov 30, 2023 Pending
Array ( [id] => 19051058 [patent_doc_number] => 20240093027 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-03-21 [patent_title] => POLYMERS USEFUL AS SURFACE LEVELING AGENTS [patent_app_type] => utility [patent_app_number] => 18/521544 [patent_app_country] => US [patent_app_date] => 2023-11-28 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 5319 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -10 [patent_words_short_claim] => 124 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18521544 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/521544
POLYMERS USEFUL AS SURFACE LEVELING AGENTS Nov 27, 2023 Pending
Array ( [id] => 19217942 [patent_doc_number] => 20240182646 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-06-06 [patent_title] => BISMALEIMIDE COMPOUND, RESIN VARNISH, AND PRODUCTION METHOD THEREOF [patent_app_type] => utility [patent_app_number] => 18/515682 [patent_app_country] => US [patent_app_date] => 2023-11-21 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 8459 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -8 [patent_words_short_claim] => 212 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18515682 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/515682
BISMALEIMIDE COMPOUND, RESIN VARNISH, AND PRODUCTION METHOD THEREOF Nov 20, 2023 Pending
Array ( [id] => 19051103 [patent_doc_number] => 20240093072 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-03-21 [patent_title] => ONE-COMPONENT TOUGHENED EPOXY ADHESIVES [patent_app_type] => utility [patent_app_number] => 18/510150 [patent_app_country] => US [patent_app_date] => 2023-11-15 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 6991 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -10 [patent_words_short_claim] => 186 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18510150 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/510150
ONE-COMPONENT TOUGHENED EPOXY ADHESIVES Nov 14, 2023 Abandoned
Array ( [id] => 19051002 [patent_doc_number] => 20240092971 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-03-21 [patent_title] => FLUORINE-CONTAINING POLYETHER COMPOUND [patent_app_type] => utility [patent_app_number] => 18/505260 [patent_app_country] => US [patent_app_date] => 2023-11-09 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 12019 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -9 [patent_words_short_claim] => 37 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18505260 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/505260
FLUORINE-CONTAINING POLYETHER COMPOUND Nov 8, 2023 Pending
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