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] => 19368806 [patent_doc_number] => 12060883 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2024-08-13 [patent_title] => Pump integrated with two independently driven prime movers [patent_app_type] => utility [patent_app_number] => 18/331430 [patent_app_country] => US [patent_app_date] => 2023-06-08 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 10 [patent_figures_cnt] => 11 [patent_no_of_words] => 13087 [patent_no_of_claims] => 23 [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] => 18331430 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/331430
Pump integrated with two independently driven prime movers Jun 7, 2023 Issued
Array ( [id] => 20555982 [patent_doc_number] => 20260055762 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2026-02-26 [patent_title] => VARIABLE DISPLACEMENT OIL PUMP AND METHOD FOR PRODUCING VARIABLE DISPLACEMENT OIL PUMP [patent_app_type] => utility [patent_app_number] => 19/105515 [patent_app_country] => US [patent_app_date] => 2023-06-06 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 5974 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -7 [patent_words_short_claim] => 128 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 19105515 [rel_patent_id] =>[rel_patent_doc_number] =>)
19/105515
VARIABLE DISPLACEMENT OIL PUMP AND METHOD FOR PRODUCING VARIABLE DISPLACEMENT OIL PUMP Jun 5, 2023 Pending
Array ( [id] => 18702016 [patent_doc_number] => 11788518 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2023-10-17 [patent_title] => Low-profile solar-powered flood control device [patent_app_type] => utility [patent_app_number] => 18/324746 [patent_app_country] => US [patent_app_date] => 2023-05-26 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 9 [patent_figures_cnt] => 18 [patent_no_of_words] => 5618 [patent_no_of_claims] => 20 [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] => 18324746 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/324746
Low-profile solar-powered flood control device May 25, 2023 Issued
Array ( [id] => 18771576 [patent_doc_number] => 20230366397 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-11-16 [patent_title] => SYSTEMS AND METHODS FOR OPERATION MODES FOR AN AIR COMPRESSOR [patent_app_type] => utility [patent_app_number] => 18/317536 [patent_app_country] => US [patent_app_date] => 2023-05-15 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 11779 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 85 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18317536 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/317536
Systems and methods for operation modes for an air compressor May 14, 2023 Issued
Array ( [id] => 18613121 [patent_doc_number] => 20230279857 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-09-07 [patent_title] => METHOD FOR CONTROLLING A ROTARY SCREW COMPRESSOR [patent_app_type] => utility [patent_app_number] => 18/316725 [patent_app_country] => US [patent_app_date] => 2023-05-12 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 3018 [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] => 18316725 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/316725
Method for controlling a rotary screw compressor May 11, 2023 Issued
Array ( [id] => 18613025 [patent_doc_number] => 20230279761 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-09-07 [patent_title] => SYSTEMS AND METHODS TO MONITOR, DETECT, AND/OR INTERVENE RELATIVE TO CAVITATION AND PULSATION EVENTS DURING A HYDRAULIC FRACTURING OPERATION [patent_app_type] => utility [patent_app_number] => 18/196001 [patent_app_country] => US [patent_app_date] => 2023-05-11 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 16520 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -18 [patent_words_short_claim] => 133 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18196001 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/196001
Systems and methods to monitor, detect, and/or intervene relative to cavitation and pulsation events during a hydraulic fracturing operation May 10, 2023 Issued
Array ( [id] => 19242531 [patent_doc_number] => 12012955 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2024-06-18 [patent_title] => Fluid end [patent_app_type] => utility [patent_app_number] => 18/313515 [patent_app_country] => US [patent_app_date] => 2023-05-08 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 116 [patent_figures_cnt] => 239 [patent_no_of_words] => 32258 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 239 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18313515 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/313515
Fluid end May 7, 2023 Issued
Array ( [id] => 20402717 [patent_doc_number] => 12492689 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2025-12-09 [patent_title] => Frac pump system [patent_app_type] => utility [patent_app_number] => 18/307505 [patent_app_country] => US [patent_app_date] => 2023-04-26 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 10 [patent_figures_cnt] => 18 [patent_no_of_words] => 0 [patent_no_of_claims] => 2 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 125 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18307505 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/307505
Frac pump system Apr 25, 2023 Issued
Array ( [id] => 18709961 [patent_doc_number] => 20230332583 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-10-19 [patent_title] => FRACTURING APPARATUS [patent_app_type] => utility [patent_app_number] => 18/307177 [patent_app_country] => US [patent_app_date] => 2023-04-26 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 5589 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -19 [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] => 18307177 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/307177
Fracturing apparatus Apr 25, 2023 Issued
Array ( [id] => 19932430 [patent_doc_number] => 12305629 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2025-05-20 [patent_title] => Diaphragm pump [patent_app_type] => utility [patent_app_number] => 18/307574 [patent_app_country] => US [patent_app_date] => 2023-04-26 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 5 [patent_no_of_words] => 0 [patent_no_of_claims] => 5 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 343 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18307574 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/307574
Diaphragm pump Apr 25, 2023 Issued
Array ( [id] => 18552702 [patent_doc_number] => 20230250713 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-08-10 [patent_title] => RODLESS PUMP AND MULTI-SEALING HYDRAULIC SUB ARTIFICIAL LIFT SYSTEM [patent_app_type] => utility [patent_app_number] => 18/299939 [patent_app_country] => US [patent_app_date] => 2023-04-13 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 12925 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -16 [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] => 18299939 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/299939
Rodless pump and multi-sealing hydraulic sub artificial lift system Apr 12, 2023 Issued
Array ( [id] => 19060755 [patent_doc_number] => 11939974 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2024-03-26 [patent_title] => Systems and methods of utilization of a hydraulic fracturing unit profile to operate hydraulic fracturing units [patent_app_type] => utility [patent_app_number] => 18/127841 [patent_app_country] => US [patent_app_date] => 2023-03-29 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 8 [patent_figures_cnt] => 9 [patent_no_of_words] => 14977 [patent_no_of_claims] => 30 [patent_no_of_ind_claims] => 4 [patent_words_short_claim] => 155 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18127841 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/127841
Systems and methods of utilization of a hydraulic fracturing unit profile to operate hydraulic fracturing units Mar 28, 2023 Issued
Array ( [id] => 20050735 [patent_doc_number] => 20250188957 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-06-12 [patent_title] => PRESSURE EXCHANGERS WITH FOULING AND PARTICLE HANDLING CAPABILITIES [patent_app_type] => utility [patent_app_number] => 18/849446 [patent_app_country] => US [patent_app_date] => 2023-03-24 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 5530 [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] => 18849446 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/849446
Pressure exchangers with fouling and particle handling capabilities Mar 23, 2023 Issued
Array ( [id] => 18693501 [patent_doc_number] => 20230323900 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-10-12 [patent_title] => MINIMIZING MIXING IN A PRESSURE EXCHANGER [patent_app_type] => utility [patent_app_number] => 18/125334 [patent_app_country] => US [patent_app_date] => 2023-03-23 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 16976 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -18 [patent_words_short_claim] => 72 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18125334 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/125334
MINIMIZING MIXING IN A PRESSURE EXCHANGER Mar 22, 2023 Pending
Array ( [id] => 19856144 [patent_doc_number] => 12258969 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2025-03-25 [patent_title] => Water pumps for urban water landscapes [patent_app_type] => utility [patent_app_number] => 18/181533 [patent_app_country] => US [patent_app_date] => 2023-03-09 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 9 [patent_figures_cnt] => 9 [patent_no_of_words] => 8762 [patent_no_of_claims] => 7 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 458 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18181533 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/181533
Water pumps for urban water landscapes Mar 8, 2023 Issued
Array ( [id] => 18469643 [patent_doc_number] => 20230203927 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-06-29 [patent_title] => POWER SOURCES AND TRANSMISSION NETWORKS FOR AUXILIARY EQUIPMENT ONBOARD HYDRAULIC FRACTURING UNITS AND ASSOCIATED METHODS [patent_app_type] => utility [patent_app_number] => 18/116383 [patent_app_country] => US [patent_app_date] => 2023-03-02 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 11871 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -23 [patent_words_short_claim] => 237 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18116383 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/116383
Power sources and transmission networks for auxiliary equipment onboard hydraulic fracturing units and associated methods Mar 1, 2023 Issued
Array ( [id] => 19404371 [patent_doc_number] => 20240287882 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-08-29 [patent_title] => SELF-ENCAPSULATED ELECTRICAL SUBMERSIBLE PUMP (ESP) [patent_app_type] => utility [patent_app_number] => 18/175856 [patent_app_country] => US [patent_app_date] => 2023-02-28 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 4928 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [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] => 18175856 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/175856
Self-encapsulated electrical submersible pump (ESP) Feb 27, 2023 Issued
Array ( [id] => 19181617 [patent_doc_number] => 11988201 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2024-05-21 [patent_title] => Electrochemical compressor [patent_app_type] => utility [patent_app_number] => 18/112550 [patent_app_country] => US [patent_app_date] => 2023-02-22 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 9 [patent_figures_cnt] => 9 [patent_no_of_words] => 5444 [patent_no_of_claims] => 4 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 323 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18112550 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/112550
Electrochemical compressor Feb 21, 2023 Issued
Array ( [id] => 20445819 [patent_doc_number] => 20260002536 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2026-01-01 [patent_title] => CO-ROTATING SCROLL COMPRESSOR [patent_app_type] => utility [patent_app_number] => 18/849115 [patent_app_country] => US [patent_app_date] => 2023-02-14 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 3519 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -4 [patent_words_short_claim] => 502 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18849115 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/849115
CO-ROTATING SCROLL COMPRESSOR Feb 13, 2023 Pending
Array ( [id] => 19266079 [patent_doc_number] => 20240209778 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-06-27 [patent_title] => METHODS, SYSTEMS, AND APPARATUS TO CONTROL A FLUID PROVIDED TO COMPONENTS IN A FLUID PUMP OF A CLOSED LOOP SYSTEM [patent_app_type] => utility [patent_app_number] => 18/167723 [patent_app_country] => US [patent_app_date] => 2023-02-10 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 28685 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 102 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18167723 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/167723
Methods, systems, and apparatus to control a fluid provided to components in a fluid pump of a closed loop system Feb 9, 2023 Issued
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