Search

David T Brooks

Examiner (ID: 14392, Phone: (571)272-3334 , Office: P/2156 )

Most Active Art Unit
2156
Art Unit(s)
2156, 2100
Total Applications
271
Issued Applications
185
Pending Applications
0
Abandoned Applications
85

Applications

Application numberTitle of the applicationFiling DateStatus
Array ( [id] => 15993837 [patent_doc_number] => 20200172789 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2020-06-04 [patent_title] => COMPOSITION AND METHOD FOR A SELF-SUSPENDING LOST CIRCULATION MATERIAL FLUID SYSTEM [patent_app_type] => utility [patent_app_number] => 16/204062 [patent_app_country] => US [patent_app_date] => 2018-11-29 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 1969 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -18 [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] => 16204062 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/204062
COMPOSITION AND METHOD FOR A SELF-SUSPENDING LOST CIRCULATION MATERIAL FLUID SYSTEM Nov 28, 2018 Abandoned
Array ( [id] => 16941195 [patent_doc_number] => 11053424 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2021-07-06 [patent_title] => Temperature-resistant calcium-resistant water-based drilling fluid for oil and gas reservoir protection and use thereof [patent_app_type] => utility [patent_app_number] => 16/196511 [patent_app_country] => US [patent_app_date] => 2018-11-20 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 6995 [patent_no_of_claims] => 10 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 128 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16196511 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/196511
Temperature-resistant calcium-resistant water-based drilling fluid for oil and gas reservoir protection and use thereof Nov 19, 2018 Issued
Array ( [id] => 15769189 [patent_doc_number] => 20200115612 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2020-04-16 [patent_title] => FILTRATE REDUCER FOR TEMPERATURE-RESISTANT CALCIUM-RESISTANT WATER-BASED DRILLING FLUID USED IN OIL AND GAS RESERVOIR PROTECTION, DRILLING FLUID, AND USES THEREOF [patent_app_type] => utility [patent_app_number] => 16/196456 [patent_app_country] => US [patent_app_date] => 2018-11-20 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 4348 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -13 [patent_words_short_claim] => 92 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16196456 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/196456
Filtrate reducer for temperature-resistant calcium-resistant water-based drilling fluid used in oil and gas reservoir protection, drilling fluid, and uses thereof Nov 19, 2018 Issued
Array ( [id] => 17742735 [patent_doc_number] => 11390792 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2022-07-19 [patent_title] => Clay-free drilling fluid composition [patent_app_type] => utility [patent_app_number] => 16/764657 [patent_app_country] => US [patent_app_date] => 2018-11-16 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 9080 [patent_no_of_claims] => 20 [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] => 16764657 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/764657
Clay-free drilling fluid composition Nov 15, 2018 Issued
Array ( [id] => 18369237 [patent_doc_number] => 11649392 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2023-05-16 [patent_title] => Application of polyelectrolyte complex nanoparticles to fluid loss control of oil well cementing [patent_app_type] => utility [patent_app_number] => 16/759504 [patent_app_country] => US [patent_app_date] => 2018-11-03 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 11 [patent_figures_cnt] => 11 [patent_no_of_words] => 11417 [patent_no_of_claims] => 15 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 79 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16759504 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/759504
Application of polyelectrolyte complex nanoparticles to fluid loss control of oil well cementing Nov 2, 2018 Issued
Array ( [id] => 14277653 [patent_doc_number] => 20190136111 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2019-05-09 [patent_title] => COMPOSITION FOR DRILLING FLUID AND METHOD OF DRILLING A BOREHOLE [patent_app_type] => utility [patent_app_number] => 16/178997 [patent_app_country] => US [patent_app_date] => 2018-11-02 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 1794 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -10 [patent_words_short_claim] => 44 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16178997 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/178997
COMPOSITION FOR DRILLING FLUID AND METHOD OF DRILLING A BOREHOLE Nov 1, 2018 Abandoned
Array ( [id] => 18028853 [patent_doc_number] => 11512025 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2022-11-29 [patent_title] => Proppant particles formed from slurry droplets and methods of use [patent_app_type] => utility [patent_app_number] => 16/179488 [patent_app_country] => US [patent_app_date] => 2018-11-02 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 16 [patent_figures_cnt] => 19 [patent_no_of_words] => 10197 [patent_no_of_claims] => 18 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 34 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16179488 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/179488
Proppant particles formed from slurry droplets and methods of use Nov 1, 2018 Issued
Array ( [id] => 17126271 [patent_doc_number] => 20210301039 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2021-09-30 [patent_title] => PROCESS FOR PRODUCING AQUEOUS POLYACRYLAMIDE SOLUTIONS [patent_app_type] => utility [patent_app_number] => 16/759233 [patent_app_country] => US [patent_app_date] => 2018-10-18 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 33127 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -27 [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] => 16759233 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/759233
Process for producing aqueous polyacrylamide solutions Oct 17, 2018 Issued
Array ( [id] => 14058187 [patent_doc_number] => 10233377 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2019-03-19 [patent_title] => Gel plugging slurry for well drilling and preparation method thereof, and slug plugging method [patent_app_type] => utility [patent_app_number] => 16/154662 [patent_app_country] => US [patent_app_date] => 2018-10-08 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 5917 [patent_no_of_claims] => 16 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 142 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16154662 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/154662
Gel plugging slurry for well drilling and preparation method thereof, and slug plugging method Oct 7, 2018 Issued
Array ( [id] => 13902181 [patent_doc_number] => 20190040295 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2019-02-07 [patent_title] => WELLBORE SERVICING COMPOSITIONS AND METHODS OF MAKING AND USING SAME [patent_app_type] => utility [patent_app_number] => 16/154452 [patent_app_country] => US [patent_app_date] => 2018-10-08 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 8837 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -16 [patent_words_short_claim] => 58 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16154452 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/154452
Wellbore servicing compositions and methods of making and using same Oct 7, 2018 Issued
Array ( [id] => 16606002 [patent_doc_number] => 10906994 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2021-02-02 [patent_title] => Processes and apparatus for producing nanocellulose, and compositions and products produced therefrom [patent_app_type] => utility [patent_app_number] => 16/152133 [patent_app_country] => US [patent_app_date] => 2018-10-04 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 9 [patent_figures_cnt] => 9 [patent_no_of_words] => 14824 [patent_no_of_claims] => 15 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 53 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16152133 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/152133
Processes and apparatus for producing nanocellulose, and compositions and products produced therefrom Oct 3, 2018 Issued
Array ( [id] => 17036979 [patent_doc_number] => 20210253937 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2021-08-19 [patent_title] => ANTI-AGGLOMERANT HYDRATE INHIBITORS AND METHOD OF USE [patent_app_type] => utility [patent_app_number] => 17/270589 [patent_app_country] => US [patent_app_date] => 2018-09-25 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 6458 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 81 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17270589 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/270589
Anti-agglomerant hydrate inhibitors and method of use Sep 24, 2018 Issued
Array ( [id] => 13826923 [patent_doc_number] => 20190016946 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2019-01-17 [patent_title] => High Temperature Crosslinked Fracturing Fluids [patent_app_type] => utility [patent_app_number] => 16/134625 [patent_app_country] => US [patent_app_date] => 2018-09-18 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 4924 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -11 [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] => 16134625 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/134625
High temperature crosslinked fracturing fluids Sep 17, 2018 Issued
Array ( [id] => 13826911 [patent_doc_number] => 20190016940 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2019-01-17 [patent_title] => Defoaming Compositions [patent_app_type] => utility [patent_app_number] => 16/134019 [patent_app_country] => US [patent_app_date] => 2018-09-18 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 5554 [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] => 16134019 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/134019
Defoaming Compositions Sep 17, 2018 Abandoned
Array ( [id] => 13826919 [patent_doc_number] => 20190016944 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2019-01-17 [patent_title] => PROPPANT PARTICLES FORMED FROM SLURRY DROPLETS AND METHOD OF USE [patent_app_type] => utility [patent_app_number] => 16/133142 [patent_app_country] => US [patent_app_date] => 2018-09-17 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 11246 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 20 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16133142 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/133142
PROPPANT PARTICLES FORMED FROM SLURRY DROPLETS AND METHOD OF USE Sep 16, 2018 Abandoned
Array ( [id] => 15513081 [patent_doc_number] => 10563117 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2020-02-18 [patent_title] => Crude oil recovery chemical fluids [patent_app_type] => utility [patent_app_number] => 16/129688 [patent_app_country] => US [patent_app_date] => 2018-09-12 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 19636 [patent_no_of_claims] => 14 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 151 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16129688 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/129688
Crude oil recovery chemical fluids Sep 11, 2018 Issued
Array ( [id] => 15541131 [patent_doc_number] => 10570331 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2020-02-25 [patent_title] => Crude oil recovery chemical fluid [patent_app_type] => utility [patent_app_number] => 16/129705 [patent_app_country] => US [patent_app_date] => 2018-09-12 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 19643 [patent_no_of_claims] => 8 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 390 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16129705 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/129705
Crude oil recovery chemical fluid Sep 11, 2018 Issued
Array ( [id] => 13778425 [patent_doc_number] => 20190002751 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2019-01-03 [patent_title] => DOUBLE-HEADED HYDRATE INHIBITORS AND METHODS OF USE [patent_app_type] => utility [patent_app_number] => 16/122163 [patent_app_country] => US [patent_app_date] => 2018-09-05 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 7044 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -14 [patent_words_short_claim] => 78 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16122163 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/122163
Double-headed hydrate inhibitors and methods of use Sep 4, 2018 Issued
Array ( [id] => 14072697 [patent_doc_number] => 20190085236 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2019-03-21 [patent_title] => Siloxane surfactant additives for oil and gas applications [patent_app_type] => utility [patent_app_number] => 15/999693 [patent_app_country] => US [patent_app_date] => 2018-08-20 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 7134 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -3 [patent_words_short_claim] => 34 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 15999693 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/999693
Siloxane surfactant additives for oil and gas applications Aug 19, 2018 Abandoned
Array ( [id] => 13577125 [patent_doc_number] => 20180340111 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2018-11-29 [patent_title] => THERMAL THICKENING IN INVERT EMULSION TREATMENT FLUIDS [patent_app_type] => utility [patent_app_number] => 16/056774 [patent_app_country] => US [patent_app_date] => 2018-08-07 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 7816 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -11 [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] => 16056774 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/056774
Thermal thickening in invert emulsion treatment fluids Aug 6, 2018 Issued
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