Search

Anthony Derrell Barfield

Examiner (ID: 4571, Phone: (571)272-6852 , Office: P/3636 )

Most Active Art Unit
3636
Art Unit(s)
3624, 3507, 3636
Total Applications
2763
Issued Applications
2191
Pending Applications
173
Abandoned Applications
429

Applications

Application numberTitle of the applicationFiling DateStatus
Array ( [id] => 19863139 [patent_doc_number] => 20250101925 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-03-27 [patent_title] => ENGINE AND METHOD OF OPERATING THE SAME [patent_app_type] => utility [patent_app_number] => 18/972026 [patent_app_country] => US [patent_app_date] => 2024-12-06 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 11832 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -26 [patent_words_short_claim] => 123 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18972026 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/972026
Engine and method of operating the same Dec 5, 2024 Issued
Array ( [id] => 20025691 [patent_doc_number] => 20250163913 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-05-22 [patent_title] => MIXING CHAMBER FOR GENERATING A PUMP CHARGE [patent_app_type] => utility [patent_app_number] => 18/949015 [patent_app_country] => US [patent_app_date] => 2024-11-15 [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] => -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] => 18949015 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/949015
MIXING CHAMBER FOR GENERATING A PUMP CHARGE Nov 14, 2024 Pending
Array ( [id] => 19801285 [patent_doc_number] => 20250067210 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-02-27 [patent_title] => ROTARY DRIVE APPARATUS [patent_app_type] => utility [patent_app_number] => 18/940101 [patent_app_country] => US [patent_app_date] => 2024-11-07 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 10024 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -23 [patent_words_short_claim] => 112 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18940101 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/940101
ROTARY DRIVE APPARATUS Nov 6, 2024 Pending
Array ( [id] => 19786229 [patent_doc_number] => 20250059908 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-02-20 [patent_title] => SINE ROTARY ENGINE [patent_app_type] => utility [patent_app_number] => 18/934191 [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] => 4285 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -4 [patent_words_short_claim] => 522 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18934191 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/934191
SINE ROTARY ENGINE Oct 30, 2024 Pending
Array ( [id] => 20008293 [patent_doc_number] => 20250146515 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-05-08 [patent_title] => Method for Operating an Axial Piston Machine in Which a Zero Case is Taken into Account [patent_app_type] => utility [patent_app_number] => 18/932292 [patent_app_country] => US [patent_app_date] => 2024-10-30 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 1171 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -9 [patent_words_short_claim] => 232 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18932292 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/932292
Method for Operating an Axial Piston Machine in Which a Zero Case is Taken into Account Oct 29, 2024 Pending
Array ( [id] => 19984599 [patent_doc_number] => 20250122821 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-04-17 [patent_title] => EXHAUST PIPE, METHOD FOR OPTIMIZING AND DESIGNING EXHAUST PIPE, AND ENGINE [patent_app_type] => utility [patent_app_number] => 18/904778 [patent_app_country] => US [patent_app_date] => 2024-10-02 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 1235 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -9 [patent_words_short_claim] => 139 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18904778 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/904778
EXHAUST PIPE, METHOD FOR OPTIMIZING AND DESIGNING EXHAUST PIPE, AND ENGINE Oct 1, 2024 Pending
Array ( [id] => 20295617 [patent_doc_number] => 20250320860 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-10-16 [patent_title] => Controlling Fracturing Pumps in a Hydraulic Fracturing System [patent_app_type] => utility [patent_app_number] => 18/899743 [patent_app_country] => US [patent_app_date] => 2024-09-27 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 5714 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -24 [patent_words_short_claim] => 251 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18899743 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/899743
Controlling Fracturing Pumps in a Hydraulic Fracturing System Sep 26, 2024 Pending
Array ( [id] => 19890903 [patent_doc_number] => 20250116215 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-04-10 [patent_title] => BLOW-BY GAS RECIRCULATION DEVICE [patent_app_type] => utility [patent_app_number] => 18/885936 [patent_app_country] => US [patent_app_date] => 2024-09-16 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 4838 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -4 [patent_words_short_claim] => 174 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18885936 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/885936
Blow-by gas recirculation device Sep 15, 2024 Issued
Array ( [id] => 20506297 [patent_doc_number] => 12540569 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2026-02-03 [patent_title] => Mixing body assembly for exhaust aftertreatment system [patent_app_type] => utility [patent_app_number] => 18/827159 [patent_app_country] => US [patent_app_date] => 2024-09-06 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 5 [patent_figures_cnt] => 5 [patent_no_of_words] => 3512 [patent_no_of_claims] => 21 [patent_no_of_ind_claims] => 6 [patent_words_short_claim] => 159 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18827159 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/827159
Mixing body assembly for exhaust aftertreatment system Sep 5, 2024 Issued
Array ( [id] => 19833070 [patent_doc_number] => 20250084856 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-03-13 [patent_title] => BLOWER APPARATUS [patent_app_type] => utility [patent_app_number] => 18/826247 [patent_app_country] => US [patent_app_date] => 2024-09-06 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 15632 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -19 [patent_words_short_claim] => 119 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18826247 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/826247
BLOWER APPARATUS Sep 5, 2024 Pending
Array ( [id] => 19659242 [patent_doc_number] => 20240426307 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-12-26 [patent_title] => FAN WITH RECIPROCATING AIR VOLUMES [patent_app_type] => utility [patent_app_number] => 18/826018 [patent_app_country] => US [patent_app_date] => 2024-09-05 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 3743 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -8 [patent_words_short_claim] => 142 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18826018 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/826018
FAN WITH RECIPROCATING AIR VOLUMES Sep 4, 2024 Pending
Array ( [id] => 19659218 [patent_doc_number] => 20240426283 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-12-26 [patent_title] => GEOTHERMAL POWER GENERATION SYSTEM AND SILICA SCALE DEPOSITION CONTROL METHOD [patent_app_type] => utility [patent_app_number] => 18/820478 [patent_app_country] => US [patent_app_date] => 2024-08-30 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 8232 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -10 [patent_words_short_claim] => 106 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18820478 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/820478
GEOTHERMAL POWER GENERATION SYSTEM AND SILICA SCALE DEPOSITION CONTROL METHOD Aug 29, 2024 Pending
Array ( [id] => 19940836 [patent_doc_number] => 12312960 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2025-05-27 [patent_title] => Integrated internal continuous combustion rotary engine [patent_app_type] => utility [patent_app_number] => 18/818659 [patent_app_country] => US [patent_app_date] => 2024-08-29 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 11 [patent_figures_cnt] => 13 [patent_no_of_words] => 1136 [patent_no_of_claims] => 8 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 135 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18818659 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/818659
Integrated internal continuous combustion rotary engine Aug 28, 2024 Issued
Array ( [id] => 19801276 [patent_doc_number] => 20250067201 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-02-27 [patent_title] => Dual Mode Muffler [patent_app_type] => utility [patent_app_number] => 18/801915 [patent_app_country] => US [patent_app_date] => 2024-08-13 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 8748 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -19 [patent_words_short_claim] => 218 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18801915 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/801915
Dual mode muffler Aug 12, 2024 Issued
Array ( [id] => 19801283 [patent_doc_number] => 20250067208 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-02-27 [patent_title] => INTERNAL COMBUSTION ENGINE ARRANGEMENT [patent_app_type] => utility [patent_app_number] => 18/802077 [patent_app_country] => US [patent_app_date] => 2024-08-13 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 9773 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -19 [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] => 18802077 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/802077
INTERNAL COMBUSTION ENGINE ARRANGEMENT Aug 12, 2024 Issued
Array ( [id] => 20016916 [patent_doc_number] => 20250155138 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-05-15 [patent_title] => Motion-Sensing Personalized Airflow Device [patent_app_type] => utility [patent_app_number] => 18/794088 [patent_app_country] => US [patent_app_date] => 2024-08-05 [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] => -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] => 18794088 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/794088
Motion-Sensing Personalized Airflow Device Aug 4, 2024 Abandoned
Array ( [id] => 19746536 [patent_doc_number] => 20250035101 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-01-30 [patent_title] => LIQUID PUMPING CASSETTES AND ASSOCIATED PRESSURE DISTRIBUTION MANIFOLD AND RELATED METHODS [patent_app_type] => utility [patent_app_number] => 18/794680 [patent_app_country] => US [patent_app_date] => 2024-08-05 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 40180 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -9 [patent_words_short_claim] => 222 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18794680 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/794680
LIQUID PUMPING CASSETTES AND ASSOCIATED PRESSURE DISTRIBUTION MANIFOLD AND RELATED METHODS Aug 4, 2024 Pending
Array ( [id] => 19521627 [patent_doc_number] => 12123340 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2024-10-22 [patent_title] => Gas-powered internal combustion engine [patent_app_type] => utility [patent_app_number] => 18/762840 [patent_app_country] => US [patent_app_date] => 2024-07-03 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 11 [patent_figures_cnt] => 15 [patent_no_of_words] => 3502 [patent_no_of_claims] => 19 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 85 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18762840 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/762840
Gas-powered internal combustion engine Jul 2, 2024 Issued
Array ( [id] => 20373059 [patent_doc_number] => 12480488 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2025-11-25 [patent_title] => Fluid end with extension plate [patent_app_type] => utility [patent_app_number] => 18/754667 [patent_app_country] => US [patent_app_date] => 2024-06-26 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 8 [patent_figures_cnt] => 8 [patent_no_of_words] => 1125 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 135 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18754667 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/754667
Fluid end with extension plate Jun 25, 2024 Issued
Array ( [id] => 19505512 [patent_doc_number] => 12116925 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2024-10-15 [patent_title] => Rotary engine with dual axis rotor rotation [patent_app_type] => utility [patent_app_number] => 18/734274 [patent_app_country] => US [patent_app_date] => 2024-06-05 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 13 [patent_figures_cnt] => 25 [patent_no_of_words] => 14025 [patent_no_of_claims] => 14 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 511 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18734274 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/734274
Rotary engine with dual axis rotor rotation Jun 4, 2024 Issued
Menu