Search

Troy Chambers

Supervisory Patent Examiner (ID: 3938, Phone: (571)272-6874 , Office: P/3641 )

Most Active Art Unit
3641
Art Unit(s)
3658, 3641
Total Applications
1158
Issued Applications
719
Pending Applications
123
Abandoned Applications
316

Applications

Application numberTitle of the applicationFiling DateStatus
Array ( [id] => 19218069 [patent_doc_number] => 20240182773 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-06-06 [patent_title] => POROUS POLYURETHANE FOR CONSOLIDATION OF MATERIAL IN SUBTERRANEAN FORMATIONS [patent_app_type] => utility [patent_app_number] => 18/441628 [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] => 3415 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -18 [patent_words_short_claim] => 70 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18441628 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/441628
POROUS POLYURETHANE FOR CONSOLIDATION OF MATERIAL IN SUBTERRANEAN FORMATIONS Feb 13, 2024 Pending
Array ( [id] => 19332651 [patent_doc_number] => 20240247081 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-07-25 [patent_title] => PROCESSES AND APPARATUS FOR PRODUCING NANOCELLULOSE, AND COMPOSITIONS AND PRODUCTS PRODUCED THEREFROM [patent_app_type] => utility [patent_app_number] => 18/437450 [patent_app_country] => US [patent_app_date] => 2024-02-09 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 14856 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -8 [patent_words_short_claim] => 52 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18437450 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/437450
PROCESSES AND APPARATUS FOR PRODUCING NANOCELLULOSE, AND COMPOSITIONS AND PRODUCTS PRODUCED THEREFROM Feb 8, 2024 Abandoned
Array ( [id] => 19332438 [patent_doc_number] => 20240246868 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-07-25 [patent_title] => PROPPANT PARTICLES FORMED FROM SLURRY DROPLETS AND METHODS OF USE [patent_app_type] => utility [patent_app_number] => 18/437971 [patent_app_country] => US [patent_app_date] => 2024-02-09 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 10275 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 46 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18437971 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/437971
Proppant particles formed from slurry droplets and methods of use Feb 8, 2024 Issued
Array ( [id] => 19832437 [patent_doc_number] => 20250084223 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-03-13 [patent_title] => MIXED POLYMER BODY PLATE AND MANUFACTURING METHOD THEREOF [patent_app_type] => utility [patent_app_number] => 18/432075 [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] => 6257 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -8 [patent_words_short_claim] => 103 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18432075 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/432075
MIXED POLYMER BODY PLATE AND MANUFACTURING METHOD THEREOF Feb 4, 2024 Pending
Array ( [id] => 19432602 [patent_doc_number] => 20240301100 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-09-12 [patent_title] => METHOD FOR PRODUCING HETEROPHASIC PROPYLENE POLYMERIZATION MATERIAL AND METHOD FOR PRODUCING OLEFIN POLYMER [patent_app_type] => utility [patent_app_number] => 18/429702 [patent_app_country] => US [patent_app_date] => 2024-02-01 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 25158 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -8 [patent_words_short_claim] => 236 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18429702 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/429702
METHOD FOR PRODUCING HETEROPHASIC PROPYLENE POLYMERIZATION MATERIAL AND METHOD FOR PRODUCING OLEFIN POLYMER Jan 31, 2024 Pending
Array ( [id] => 19187860 [patent_doc_number] => 20240166773 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-05-23 [patent_title] => PREPARATION METHOD OF BORON-FREE AND FORMALDEHYDE-FREE MODIFIED POLYSACCHARIDES [patent_app_type] => utility [patent_app_number] => 18/425317 [patent_app_country] => US [patent_app_date] => 2024-01-29 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 7359 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -9 [patent_words_short_claim] => 84 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18425317 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/425317
PREPARATION METHOD OF BORON-FREE AND FORMALDEHYDE-FREE MODIFIED POLYSACCHARIDES Jan 28, 2024 Pending
Array ( [id] => 19318482 [patent_doc_number] => 20240240025 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-07-18 [patent_title] => Blue-Excitable Water-Solvated Polymeric Dyes [patent_app_type] => utility [patent_app_number] => 18/411706 [patent_app_country] => US [patent_app_date] => 2024-01-12 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 29257 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 11 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18411706 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/411706
Blue-Excitable Water-Solvated Polymeric Dyes Jan 11, 2024 Pending
Array ( [id] => 19317198 [patent_doc_number] => 20240238738 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-07-18 [patent_title] => Botanical Resin Extraction Apparatus [patent_app_type] => utility [patent_app_number] => 18/412234 [patent_app_country] => US [patent_app_date] => 2024-01-12 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 1956 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -18 [patent_words_short_claim] => 108 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18412234 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/412234
Botanical Resin Extraction Apparatus Jan 11, 2024 Pending
Array ( [id] => 19638151 [patent_doc_number] => 12168752 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2024-12-17 [patent_title] => High-temperature visual acid etching experimental device and method [patent_app_type] => utility [patent_app_number] => 18/402787 [patent_app_country] => US [patent_app_date] => 2024-01-03 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 1 [patent_figures_cnt] => 1 [patent_no_of_words] => 4252 [patent_no_of_claims] => 9 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 527 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18402787 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/402787
High-temperature visual acid etching experimental device and method Jan 2, 2024 Issued
Array ( [id] => 19551037 [patent_doc_number] => 12134735 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2024-11-05 [patent_title] => Low-shrinkage and high-strength plant-based resinous blocking agent and preparation method thereof [patent_app_type] => utility [patent_app_number] => 18/537488 [patent_app_country] => US [patent_app_date] => 2023-12-12 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 3688 [patent_no_of_claims] => 6 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 211 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18537488 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/537488
Low-shrinkage and high-strength plant-based resinous blocking agent and preparation method thereof Dec 11, 2023 Issued
Array ( [id] => 19265503 [patent_doc_number] => 20240209202 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-06-27 [patent_title] => QUATERNIZED STYRENIC BLOCK COPOLYMERS AND METHODS OF PREPARATION THEREOF [patent_app_type] => utility [patent_app_number] => 18/536330 [patent_app_country] => US [patent_app_date] => 2023-12-12 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 6729 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -19 [patent_words_short_claim] => 270 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18536330 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/536330
QUATERNIZED STYRENIC BLOCK COPOLYMERS AND METHODS OF PREPARATION THEREOF Dec 11, 2023 Pending
Array ( [id] => 19034371 [patent_doc_number] => 20240084186 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-03-14 [patent_title] => DEVELOPMENT OF ULTRA-HIGH MOLECULAR WEIGHT (UHMW) BRANCHED BLOCK COPOLYMER SHALE INHIBITOR FOR WATER BASED DRILLING FLUID [patent_app_type] => utility [patent_app_number] => 18/497439 [patent_app_country] => US [patent_app_date] => 2023-10-30 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 13318 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -19 [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] => 18497439 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/497439
Development of ultra-high molecular weight (UHMW) branched block copolymer shale inhibitor for water based drilling fluid Oct 29, 2023 Issued
Array ( [id] => 20329857 [patent_doc_number] => 12460123 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2025-11-04 [patent_title] => Sulfonyl azide composition for sulfur scavenging in oilfield operations [patent_app_type] => utility [patent_app_number] => 19/119792 [patent_app_country] => US [patent_app_date] => 2023-10-23 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 2 [patent_figures_cnt] => 2 [patent_no_of_words] => 0 [patent_no_of_claims] => 10 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 44 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 19119792 [rel_patent_id] =>[rel_patent_doc_number] =>)
19/119792
Sulfonyl azide composition for sulfur scavenging in oilfield operations Oct 22, 2023 Issued
Array ( [id] => 19651454 [patent_doc_number] => 12173225 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2024-12-24 [patent_title] => Method for drilling a wellbore with a reduced ferrite sag composition [patent_app_type] => utility [patent_app_number] => 18/489296 [patent_app_country] => US [patent_app_date] => 2023-10-18 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 12 [patent_figures_cnt] => 12 [patent_no_of_words] => 10331 [patent_no_of_claims] => 15 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 250 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18489296 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/489296
Method for drilling a wellbore with a reduced ferrite sag composition Oct 17, 2023 Issued
Array ( [id] => 18939687 [patent_doc_number] => 20240034826 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-02-01 [patent_title] => DRAG REDUCING AGENT AND PROCESS OF MANUFACTURE THEREOF [patent_app_type] => utility [patent_app_number] => 18/483279 [patent_app_country] => US [patent_app_date] => 2023-10-09 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 7523 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -6 [patent_words_short_claim] => 113 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18483279 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/483279
DRAG REDUCING AGENT AND PROCESS OF MANUFACTURE THEREOF Oct 8, 2023 Abandoned
Array ( [id] => 20144136 [patent_doc_number] => 12378465 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2025-08-05 [patent_title] => Development of ultra-high molecular weight (UHMW) branched block copolymer drag reducer with improved mechanical and chemical stability [patent_app_type] => utility [patent_app_number] => 18/476077 [patent_app_country] => US [patent_app_date] => 2023-09-27 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 6 [patent_figures_cnt] => 10 [patent_no_of_words] => 6693 [patent_no_of_claims] => 9 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 456 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18476077 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/476077
Development of ultra-high molecular weight (UHMW) branched block copolymer drag reducer with improved mechanical and chemical stability Sep 26, 2023 Issued
Array ( [id] => 18862005 [patent_doc_number] => 20230416441 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-12-28 [patent_title] => POLYORGANOSILOXANE-CONTAINING POLYMER, COMPOSITION, AND MOLDED ARTICLE [patent_app_type] => utility [patent_app_number] => 18/464531 [patent_app_country] => US [patent_app_date] => 2023-09-11 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 14555 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -11 [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] => 18464531 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/464531
POLYORGANOSILOXANE-CONTAINING POLYMER, COMPOSITION, AND MOLDED ARTICLE Sep 10, 2023 Pending
Array ( [id] => 19067362 [patent_doc_number] => 20240101788 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-03-28 [patent_title] => SILOXANE COMPOUND, PREPARATION METHOD THEREOF, AND USE THEREOF [patent_app_type] => utility [patent_app_number] => 18/461521 [patent_app_country] => US [patent_app_date] => 2023-09-06 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 7322 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -16 [patent_words_short_claim] => 148 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18461521 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/461521
SILOXANE COMPOUND, PREPARATION METHOD THEREOF, AND USE THEREOF Sep 5, 2023 Pending
Array ( [id] => 19692982 [patent_doc_number] => 20250011527 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-01-09 [patent_title] => MODIFIED NAPHTHOL RESIN AND PREPARATION METHOD THEREOF [patent_app_type] => utility [patent_app_number] => 18/459456 [patent_app_country] => US [patent_app_date] => 2023-09-01 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 4455 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -9 [patent_words_short_claim] => 55 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18459456 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/459456
MODIFIED NAPHTHOL RESIN AND PREPARATION METHOD THEREOF Aug 31, 2023 Pending
Array ( [id] => 19474040 [patent_doc_number] => 12104117 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2024-10-01 [patent_title] => Amphiphilic block copolymer surfactant for attenuating acid reactivity during acid stimulation of carbonate rich reservoirs [patent_app_type] => utility [patent_app_number] => 18/362741 [patent_app_country] => US [patent_app_date] => 2023-07-31 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 7169 [patent_no_of_claims] => 9 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 126 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18362741 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/362741
Amphiphilic block copolymer surfactant for attenuating acid reactivity during acid stimulation of carbonate rich reservoirs Jul 30, 2023 Issued
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