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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] => 20865407 [patent_doc_number] => 12692285 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2026-07-28 [patent_title] => Method and an apparatus for washing a crude lignin, a soluble carbohydrate containing fraction, a solid fraction and their use [patent_app_type] => utility [patent_app_number] => 17/686725 [patent_app_country] => US [patent_app_date] => 2022-03-04 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 5 [patent_no_of_words] => 5016 [patent_no_of_claims] => 11 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 149 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17686725 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/686725
METHOD AND AN APPARATUS FOR WASHING A CRUDE LIGNIN, A SOLUBLE CARBOHYDRATE CONTAINING FRACTION, A SOLID FRACTION AND THEIR USE Mar 3, 2022 Issued
Array ( [id] => 17897146 [patent_doc_number] => 20220306808 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2022-09-29 [patent_title] => HEAT-CURABLE CITRACONIMIDE RESIN COMPOSITION [patent_app_type] => utility [patent_app_number] => 17/687420 [patent_app_country] => US [patent_app_date] => 2022-03-04 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 6599 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -12 [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] => 17687420 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/687420
Heat-curable citraconimide resin composition Mar 3, 2022 Issued
Array ( [id] => 18020774 [patent_doc_number] => 20220372273 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2022-11-24 [patent_title] => Vitrimers Containing Additives [patent_app_type] => utility [patent_app_number] => 17/685755 [patent_app_country] => US [patent_app_date] => 2022-03-03 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 7361 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 39 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17685755 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/685755
Vitrimers containing additives Mar 2, 2022 Issued
Array ( [id] => 19910312 [patent_doc_number] => 12286508 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2025-04-29 [patent_title] => Melt-processable shape-memory elastomers containing bisurea segments [patent_app_type] => utility [patent_app_number] => 17/679806 [patent_app_country] => US [patent_app_date] => 2022-02-24 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 30 [patent_figures_cnt] => 64 [patent_no_of_words] => 3617 [patent_no_of_claims] => 6 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 119 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17679806 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/679806
Melt-processable shape-memory elastomers containing bisurea segments Feb 23, 2022 Issued
Array ( [id] => 19157892 [patent_doc_number] => 20240150599 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-05-09 [patent_title] => OILY INK COMPOSITION [patent_app_type] => utility [patent_app_number] => 18/549397 [patent_app_country] => US [patent_app_date] => 2022-02-24 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 4769 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -16 [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] => 18549397 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/549397
OILY INK COMPOSITION Feb 23, 2022 Pending
Array ( [id] => 18692776 [patent_doc_number] => 20230323111 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-10-12 [patent_title] => RESIN COMPOSITION, FORMED ARTICLE, AND, ELECTROMAGNETIC WAVE ABSORBER [patent_app_type] => utility [patent_app_number] => 18/006749 [patent_app_country] => US [patent_app_date] => 2022-02-24 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 17244 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -26 [patent_words_short_claim] => 33 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18006749 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/006749
RESIN COMPOSITION, FORMED ARTICLE, AND, ELECTROMAGNETIC WAVE ABSORBER Feb 23, 2022 Pending
Array ( [id] => 19464315 [patent_doc_number] => 20240317984 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-09-26 [patent_title] => HIGH MELT STRENGTH PP BLENDS FOR FOAM WITH HIGH THERMOSTABILITY [patent_app_type] => utility [patent_app_number] => 18/277649 [patent_app_country] => US [patent_app_date] => 2022-02-18 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 6492 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -18 [patent_words_short_claim] => 200 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18277649 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/277649
HIGH MELT STRENGTH PP BLENDS FOR FOAM WITH HIGH THERMOSTABILITY Feb 17, 2022 Pending
Array ( [id] => 19233829 [patent_doc_number] => 20240191021 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-06-13 [patent_title] => AROMATIC BRANCHED POLYCARBONATE, METHOD FOR MANUFACTURING SAME, AND AROMATIC BRANCHED POLYCARBONATE MANUFACTURING APPARATUS [patent_app_type] => utility [patent_app_number] => 18/283364 [patent_app_country] => US [patent_app_date] => 2022-02-18 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 25391 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -16 [patent_words_short_claim] => 211 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18283364 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/283364
AROMATIC BRANCHED POLYCARBONATE, METHOD FOR MANUFACTURING SAME, AND AROMATIC BRANCHED POLYCARBONATE MANUFACTURING APPARATUS Feb 17, 2022 Pending
Array ( [id] => 18567181 [patent_doc_number] => 20230257513 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-08-17 [patent_title] => REHEALABLE AND REWORKABLE POLYMER FOR ELECTRONIC PACKAGING [patent_app_type] => utility [patent_app_number] => 17/651301 [patent_app_country] => US [patent_app_date] => 2022-02-16 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 4804 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 38 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17651301 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/651301
Rehealable and reworkable polymer for electronic packaging Feb 15, 2022 Issued
Array ( [id] => 19097611 [patent_doc_number] => 20240116839 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-04-11 [patent_title] => PROCESS FOR PREPARING BISPHENOL A (BPA) IN THE PRESENCE OF ACETOPHENONE [patent_app_type] => utility [patent_app_number] => 18/270364 [patent_app_country] => US [patent_app_date] => 2022-02-16 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 5147 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -14 [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] => 18270364 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/270364
PROCESS FOR PREPARING BISPHENOL A (BPA) IN THE PRESENCE OF ACETOPHENONE Feb 15, 2022 Pending
Array ( [id] => 19020086 [patent_doc_number] => 20240076257 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-03-07 [patent_title] => PROCESS FOR PREPARING BISPHENOL A (BPA) IN THE PRESENCE OF 2-METHYL BENZOFURAN [patent_app_type] => utility [patent_app_number] => 18/270646 [patent_app_country] => US [patent_app_date] => 2022-02-16 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 5591 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -14 [patent_words_short_claim] => 96 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18270646 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/270646
PROCESS FOR PREPARING BISPHENOL A (BPA) IN THE PRESENCE OF 2-METHYL BENZOFURAN Feb 15, 2022 Pending
Array ( [id] => 19418329 [patent_doc_number] => 20240294452 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-09-05 [patent_title] => PROCESS FOR PREPARING BISPHENOL A (BPA) IN THE PRESENCE OF CUMENE [patent_app_type] => utility [patent_app_number] => 18/270643 [patent_app_country] => US [patent_app_date] => 2022-02-16 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 5563 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -11 [patent_words_short_claim] => 67 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18270643 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/270643
PROCESS FOR PREPARING BISPHENOL A (BPA) IN THE PRESENCE OF CUMENE Feb 15, 2022 Pending
Array ( [id] => 19763250 [patent_doc_number] => 12221525 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2025-02-11 [patent_title] => Formaldehyde-free cyclic urea reactive additives for exotherm suppressant compositions [patent_app_type] => utility [patent_app_number] => 17/670722 [patent_app_country] => US [patent_app_date] => 2022-02-14 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 8 [patent_figures_cnt] => 10 [patent_no_of_words] => 11802 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 100 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17670722 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/670722
Formaldehyde-free cyclic urea reactive additives for exotherm suppressant compositions Feb 13, 2022 Issued
Array ( [id] => 19157813 [patent_doc_number] => 20240150520 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-05-09 [patent_title] => ALTERNATING POLY(LACTIC-CO-GLYCOLIC ACID) AND METHODS OF MAKING AND USING SAME [patent_app_type] => utility [patent_app_number] => 18/546039 [patent_app_country] => US [patent_app_date] => 2022-02-10 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 15192 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -27 [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] => 18546039 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/546039
ALTERNATING POLY(LACTIC-CO-GLYCOLIC ACID) AND METHODS OF MAKING AND USING SAME Feb 9, 2022 Pending
Array ( [id] => 19432642 [patent_doc_number] => 20240301140 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-09-12 [patent_title] => PROCESS FOR MODIFYING AN AROMATIC POLYETHER BACKBONE AND A MODIFIED POLYETHER OBTAINED BY THIS PROCESS [patent_app_type] => utility [patent_app_number] => 18/276240 [patent_app_country] => US [patent_app_date] => 2022-02-07 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 13303 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -12 [patent_words_short_claim] => 97 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18276240 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/276240
PROCESS FOR MODIFYING AN AROMATIC POLYETHER BACKBONE AND A MODIFIED POLYETHER OBTAINED BY THIS PROCESS Feb 6, 2022 Pending
Array ( [id] => 18987865 [patent_doc_number] => 20240059834 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-02-22 [patent_title] => THERMOPLASTIC POLYESTER RESIN COMPOSITION, AND EXTRUSION-MOLDED ARTICLE COMPOSED THEREOF [patent_app_type] => utility [patent_app_number] => 18/270372 [patent_app_country] => US [patent_app_date] => 2022-02-02 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 5395 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -5 [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] => 18270372 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/270372
THERMOPLASTIC POLYESTER RESIN COMPOSITION, AND EXTRUSION-MOLDED ARTICLE COMPOSED THEREOF Feb 1, 2022 Pending
Array ( [id] => 20672015 [patent_doc_number] => 12612516 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2026-04-28 [patent_title] => Cationic curing agent, method for producing same and cationically curable composition [patent_app_type] => utility [patent_app_number] => 18/007335 [patent_app_country] => US [patent_app_date] => 2022-02-02 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 9879 [patent_no_of_claims] => 13 [patent_no_of_ind_claims] => 4 [patent_words_short_claim] => 149 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18007335 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/007335
Cationic curing agent, method for producing same and cationically curable composition Feb 1, 2022 Issued
Array ( [id] => 19097884 [patent_doc_number] => 20240117112 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-04-11 [patent_title] => PROCESS FOR BRANCHED POLYESTERS FOR FOAMING AND RELATED PRODUCTS [patent_app_type] => utility [patent_app_number] => 18/263755 [patent_app_country] => US [patent_app_date] => 2022-02-01 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 8243 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 18 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18263755 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/263755
PROCESS FOR BRANCHED POLYESTERS FOR FOAMING AND RELATED PRODUCTS Jan 31, 2022 Pending
Array ( [id] => 17611644 [patent_doc_number] => 20220153923 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2022-05-19 [patent_title] => THERMOSETTING RESIN COMPOSITION, PREPREG, FIBER-REINFORCED PLASTIC MOLDED BODY AND METHOD FOR PRODUCING SAME [patent_app_type] => utility [patent_app_number] => 17/590252 [patent_app_country] => US [patent_app_date] => 2022-02-01 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 17358 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -13 [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] => 17590252 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/590252
THERMOSETTING RESIN COMPOSITION, PREPREG, FIBER-REINFORCED PLASTIC MOLDED BODY AND METHOD FOR PRODUCING SAME Jan 31, 2022 Abandoned
Array ( [id] => 19187947 [patent_doc_number] => 20240166860 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-05-23 [patent_title] => RESIN COMPOSITION AND MOLDED BODY [patent_app_type] => utility [patent_app_number] => 18/274623 [patent_app_country] => US [patent_app_date] => 2022-01-28 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 15060 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 96 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18274623 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/274623
RESIN COMPOSITION AND MOLDED BODY Jan 27, 2022 Pending
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