Search

Charles Grant Freay

Examiner (ID: 5456, Phone: (571)272-4827 , Office: P/3746 )

Most Active Art Unit
3746
Art Unit(s)
3727, 3403, 3746, 3304, 2899
Total Applications
3911
Issued Applications
3057
Pending Applications
360
Abandoned Applications
518

Applications

Application numberTitle of the applicationFiling DateStatus
Array ( [id] => 20136811 [patent_doc_number] => 20250243855 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-07-31 [patent_title] => SINGLE STAGE RECIPROCATING PISTON COMPRESSOR WITH COOLING [patent_app_type] => utility [patent_app_number] => 18/426133 [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] => 25194 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -51 [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] => 18426133 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/426133
SINGLE STAGE RECIPROCATING PISTON COMPRESSOR WITH COOLING Jan 28, 2024 Pending
Array ( [id] => 20414601 [patent_doc_number] => 12497874 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2025-12-16 [patent_title] => Electric submersible pump (ESP) system and method [patent_app_type] => utility [patent_app_number] => 18/423797 [patent_app_country] => US [patent_app_date] => 2024-01-26 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 5 [patent_figures_cnt] => 5 [patent_no_of_words] => 4551 [patent_no_of_claims] => 23 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 115 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18423797 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/423797
Electric submersible pump (ESP) system and method Jan 25, 2024 Issued
Array ( [id] => 19923551 [patent_doc_number] => 12297823 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2025-05-13 [patent_title] => Electrical submersible pump control [patent_app_type] => utility [patent_app_number] => 18/418005 [patent_app_country] => US [patent_app_date] => 2024-01-19 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 7 [patent_figures_cnt] => 7 [patent_no_of_words] => 1440 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 3 [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] => 18418005 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/418005
Electrical submersible pump control Jan 18, 2024 Issued
Array ( [id] => 19809980 [patent_doc_number] => 12241354 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2025-03-04 [patent_title] => Automatically determining flow type histories for frack pumps and managing usage thereof using the flow type histories [patent_app_type] => utility [patent_app_number] => 18/409532 [patent_app_country] => US [patent_app_date] => 2024-01-10 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 9 [patent_figures_cnt] => 9 [patent_no_of_words] => 8206 [patent_no_of_claims] => 22 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 84 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18409532 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/409532
Automatically determining flow type histories for frack pumps and managing usage thereof using the flow type histories Jan 9, 2024 Issued
Array ( [id] => 20173610 [patent_doc_number] => 12392346 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2025-08-19 [patent_title] => Can system and dual electric submersible pump device [patent_app_type] => utility [patent_app_number] => 18/400484 [patent_app_country] => US [patent_app_date] => 2023-12-29 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 5 [patent_figures_cnt] => 6 [patent_no_of_words] => 1212 [patent_no_of_claims] => 13 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 189 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18400484 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/400484
Can system and dual electric submersible pump device Dec 28, 2023 Issued
Array ( [id] => 19572589 [patent_doc_number] => 20240376881 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-11-14 [patent_title] => BELLOWS FAILURE DETECTION FOR A PUMP [patent_app_type] => utility [patent_app_number] => 18/398858 [patent_app_country] => US [patent_app_date] => 2023-12-28 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 18744 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 54 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18398858 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/398858
BELLOWS FAILURE DETECTION FOR A PUMP Dec 27, 2023 Pending
Array ( [id] => 19572596 [patent_doc_number] => 20240376888 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-11-14 [patent_title] => PROTECTION OF MAKE-UP SYSTEM FOR HIGH PRESSURE BELLOWS-STYLE PUMP SYSTEM [patent_app_type] => utility [patent_app_number] => 18/399058 [patent_app_country] => US [patent_app_date] => 2023-12-28 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 25317 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -18 [patent_words_short_claim] => 156 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18399058 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/399058
PROTECTION OF MAKE-UP SYSTEM FOR HIGH PRESSURE BELLOWS-STYLE PUMP SYSTEM Dec 27, 2023 Pending
Array ( [id] => 19113575 [patent_doc_number] => 20240125325 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-04-18 [patent_title] => PAP SYSTEM BLOWER [patent_app_type] => utility [patent_app_number] => 18/396820 [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] => 16248 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -15 [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] => 18396820 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/396820
PAP system blower Dec 26, 2023 Issued
Array ( [id] => 19333216 [patent_doc_number] => 20240247646 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-07-25 [patent_title] => MOBILE FRACTURING PUMP TRANSPORT FOR HYDRAULIC FRACTURING OF SUBSURFACE GEOLOGICAL FORMATIONS [patent_app_type] => utility [patent_app_number] => 18/397567 [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] => 14306 [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] => 18397567 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/397567
MOBILE FRACTURING PUMP TRANSPORT FOR HYDRAULIC FRACTURING OF SUBSURFACE GEOLOGICAL FORMATIONS Dec 26, 2023 Pending
Array ( [id] => 19840693 [patent_doc_number] => 12253071 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2025-03-18 [patent_title] => Drive system for a positive displacement pump [patent_app_type] => utility [patent_app_number] => 18/537182 [patent_app_country] => US [patent_app_date] => 2023-12-12 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 8 [patent_figures_cnt] => 8 [patent_no_of_words] => 8165 [patent_no_of_claims] => 15 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 233 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18537182 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/537182
Drive system for a positive displacement pump Dec 11, 2023 Issued
Array ( [id] => 19333220 [patent_doc_number] => 20240247650 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-07-25 [patent_title] => SERVO DRIVEN PUMP [patent_app_type] => utility [patent_app_number] => 18/530415 [patent_app_country] => US [patent_app_date] => 2023-12-06 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 1554 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -16 [patent_words_short_claim] => 118 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18530415 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/530415
SERVO DRIVEN PUMP Dec 5, 2023 Pending
Array ( [id] => 19083759 [patent_doc_number] => 20240110560 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-04-04 [patent_title] => ELECTRIC CYLINDER DRIVING DEVICE AND WALKING BEAM PUMPING UNIT INCLUDING ELECTRIC CYLINDER DRIVING DEVICE [patent_app_type] => utility [patent_app_number] => 18/529088 [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] => 2935 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -18 [patent_words_short_claim] => 114 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18529088 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/529088
Electric cylinder driving device and walking beam pumping unit including electric cylinder driving device Dec 4, 2023 Issued
Array ( [id] => 20187608 [patent_doc_number] => 12398716 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2025-08-26 [patent_title] => Dynamic compressor controls [patent_app_type] => utility [patent_app_number] => 18/529918 [patent_app_country] => US [patent_app_date] => 2023-12-05 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 15 [patent_figures_cnt] => 15 [patent_no_of_words] => 5538 [patent_no_of_claims] => 21 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 176 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18529918 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/529918
Dynamic compressor controls Dec 4, 2023 Issued
Array ( [id] => 20549280 [patent_doc_number] => 12560064 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2026-02-24 [patent_title] => Semi-trailer-loaded turbine fracturing equipment [patent_app_type] => utility [patent_app_number] => 18/521619 [patent_app_country] => US [patent_app_date] => 2023-11-28 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 7 [patent_figures_cnt] => 12 [patent_no_of_words] => 4412 [patent_no_of_claims] => 17 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 99 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18521619 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/521619
Semi-trailer-loaded turbine fracturing equipment Nov 27, 2023 Issued
Array ( [id] => 20025685 [patent_doc_number] => 20250163907 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-05-22 [patent_title] => SMOOTHING PUMP RATE DURING TRANSITION [patent_app_type] => utility [patent_app_number] => 18/515946 [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] => 1223 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 76 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18515946 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/515946
SMOOTHING PUMP RATE DURING TRANSITION Nov 20, 2023 Pending
Array ( [id] => 20414606 [patent_doc_number] => 12497879 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2025-12-16 [patent_title] => Power sources and transmission networks for auxiliary equipment onboard hydraulic fracturing units and associated methods [patent_app_type] => utility [patent_app_number] => 18/516567 [patent_app_country] => US [patent_app_date] => 2023-11-21 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 18 [patent_figures_cnt] => 21 [patent_no_of_words] => 7076 [patent_no_of_claims] => 19 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 252 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18516567 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/516567
Power sources and transmission networks for auxiliary equipment onboard hydraulic fracturing units and associated methods Nov 20, 2023 Issued
Array ( [id] => 20016726 [patent_doc_number] => 20250154948 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-05-15 [patent_title] => PACKING STYLE PISTON ROD [patent_app_type] => utility [patent_app_number] => 18/508511 [patent_app_country] => US [patent_app_date] => 2023-11-14 [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] => 126 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18508511 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/508511
PACKING STYLE PISTON ROD Nov 13, 2023 Pending
Array ( [id] => 19856131 [patent_doc_number] => 12258956 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2025-03-25 [patent_title] => Fracturing operations pump fleet balance controller [patent_app_type] => utility [patent_app_number] => 18/507212 [patent_app_country] => US [patent_app_date] => 2023-11-13 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 29 [patent_figures_cnt] => 29 [patent_no_of_words] => 39439 [patent_no_of_claims] => 10 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 136 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18507212 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/507212
Fracturing operations pump fleet balance controller Nov 12, 2023 Issued
Array ( [id] => 20016724 [patent_doc_number] => 20250154946 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-05-15 [patent_title] => VARIABLE TORQUE CONVERTER FOR BOREHOLE OPERATIONS [patent_app_type] => utility [patent_app_number] => 18/507976 [patent_app_country] => US [patent_app_date] => 2023-11-13 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 6064 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -26 [patent_words_short_claim] => 165 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18507976 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/507976
VARIABLE TORQUE CONVERTER FOR BOREHOLE OPERATIONS Nov 12, 2023 Abandoned
Array ( [id] => 19004388 [patent_doc_number] => 20240068459 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-02-29 [patent_title] => FLUID END ASSEMBLY [patent_app_type] => utility [patent_app_number] => 18/493526 [patent_app_country] => US [patent_app_date] => 2023-10-24 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 18653 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -19 [patent_words_short_claim] => 184 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18493526 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/493526
Fluid end assembly Oct 23, 2023 Issued
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