Search

John M. Hoffmann

Examiner (ID: 13343, Phone: (571)272-1191 , Office: P/1741 )

Most Active Art Unit
1731
Art Unit(s)
1741, 1303, 1731, 1791, 1712, 1304
Total Applications
1565
Issued Applications
722
Pending Applications
142
Abandoned Applications
703

Applications

Application numberTitle of the applicationFiling DateStatus
Array ( [id] => 20473789 [patent_doc_number] => 20260016008 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2026-01-15 [patent_title] => COMPRESSOR COUPLING COMPONENT FOR COUPLING A DRIVE SHAFT AND A MOVABLE SPIRAL IN A SCROLL COMPRESSOR [patent_app_type] => utility [patent_app_number] => 18/994727 [patent_app_country] => US [patent_app_date] => 2023-09-26 [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] => -10 [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] => 18994727 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/994727
COMPRESSOR COUPLING COMPONENT FOR COUPLING A DRIVE SHAFT AND A MOVABLE SPIRAL IN A SCROLL COMPRESSOR Sep 25, 2023 Pending
Array ( [id] => 20387122 [patent_doc_number] => 12486843 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2025-12-02 [patent_title] => Volume expansion for cavitation reduction in a gear pump mesh [patent_app_type] => utility [patent_app_number] => 18/372480 [patent_app_country] => US [patent_app_date] => 2023-09-25 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 17 [patent_figures_cnt] => 27 [patent_no_of_words] => 4708 [patent_no_of_claims] => 22 [patent_no_of_ind_claims] => 3 [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] => 18372480 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/372480
Volume expansion for cavitation reduction in a gear pump mesh Sep 24, 2023 Issued
Array ( [id] => 19068045 [patent_doc_number] => 20240102471 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-03-28 [patent_title] => UNIVERSAL PUMP BRACKET [patent_app_type] => utility [patent_app_number] => 18/472711 [patent_app_country] => US [patent_app_date] => 2023-09-22 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 3588 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 141 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18472711 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/472711
UNIVERSAL PUMP BRACKET Sep 21, 2023 Pending
Array ( [id] => 19793884 [patent_doc_number] => 12234822 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2025-02-25 [patent_title] => Compressor formed by identical rotors with circular arcs [patent_app_type] => utility [patent_app_number] => 18/371548 [patent_app_country] => US [patent_app_date] => 2023-09-22 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 7 [patent_figures_cnt] => 10 [patent_no_of_words] => 2959 [patent_no_of_claims] => 17 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 141 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18371548 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/371548
Compressor formed by identical rotors with circular arcs Sep 21, 2023 Issued
Array ( [id] => 19051717 [patent_doc_number] => 20240093686 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-03-21 [patent_title] => Axial Load In Helical Trochoidal Rotary Machines [patent_app_type] => utility [patent_app_number] => 18/470625 [patent_app_country] => US [patent_app_date] => 2023-09-20 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 11362 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -18 [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] => 18470625 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/470625
Axial load in helical trochoidal rotary machines Sep 19, 2023 Issued
Array ( [id] => 19856137 [patent_doc_number] => 12258962 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2025-03-25 [patent_title] => Scroll compressor and air conditioning system with an exhaust pipe that aids in oil seperation and motor cooling [patent_app_type] => utility [patent_app_number] => 18/237156 [patent_app_country] => US [patent_app_date] => 2023-08-23 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 6 [patent_figures_cnt] => 8 [patent_no_of_words] => 6469 [patent_no_of_claims] => 16 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 225 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18237156 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/237156
Scroll compressor and air conditioning system with an exhaust pipe that aids in oil seperation and motor cooling Aug 22, 2023 Issued
Array ( [id] => 20549381 [patent_doc_number] => 12560166 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2026-02-24 [patent_title] => Pump assembly with the pump disposed within the plurality of teeth of the motor stator [patent_app_type] => utility [patent_app_number] => 18/728091 [patent_app_country] => US [patent_app_date] => 2023-08-17 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 9 [patent_figures_cnt] => 9 [patent_no_of_words] => 2363 [patent_no_of_claims] => 10 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 168 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18728091 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/728091
Pump assembly with the pump disposed within the plurality of teeth of the motor stator Aug 16, 2023 Issued
Array ( [id] => 19962254 [patent_doc_number] => 12331743 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2025-06-17 [patent_title] => Scroll machine with multiple flow paths for the inlet flow including in the hollow shaft portion [patent_app_type] => utility [patent_app_number] => 18/233201 [patent_app_country] => US [patent_app_date] => 2023-08-11 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 5 [patent_figures_cnt] => 6 [patent_no_of_words] => 3390 [patent_no_of_claims] => 24 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 499 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18233201 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/233201
Scroll machine with multiple flow paths for the inlet flow including in the hollow shaft portion Aug 10, 2023 Issued
Array ( [id] => 20439243 [patent_doc_number] => 12510073 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2025-12-30 [patent_title] => Refrigeration system with a scroll machine having a plate inserted in a base of the scroll machine [patent_app_type] => utility [patent_app_number] => 18/232665 [patent_app_country] => US [patent_app_date] => 2023-08-10 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 5 [patent_figures_cnt] => 11 [patent_no_of_words] => 1124 [patent_no_of_claims] => 18 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 400 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18232665 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/232665
Refrigeration system with a scroll machine having a plate inserted in a base of the scroll machine Aug 9, 2023 Issued
Array ( [id] => 20519297 [patent_doc_number] => 20260043401 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2026-02-12 [patent_title] => MULTIPHASE PUMPING SYSTEM [patent_app_type] => utility [patent_app_number] => 19/100999 [patent_app_country] => US [patent_app_date] => 2023-08-01 [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] => -15 [patent_words_short_claim] => 134 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 19100999 [rel_patent_id] =>[rel_patent_doc_number] =>)
19/100999
MULTIPHASE PUMPING SYSTEM Jul 31, 2023 Pending
Array ( [id] => 20499528 [patent_doc_number] => 20260028986 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2026-01-29 [patent_title] => SCROLL COMPRESSOR [patent_app_type] => utility [patent_app_number] => 19/099069 [patent_app_country] => US [patent_app_date] => 2023-07-28 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 5582 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -25 [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] => 19099069 [rel_patent_id] =>[rel_patent_doc_number] =>)
19/099069
SCROLL COMPRESSOR Jul 27, 2023 Pending
Array ( [id] => 20499533 [patent_doc_number] => 20260028991 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2026-01-29 [patent_title] => SCROLL FOR SCROLL COMPRESSOR AND SCROLL COMPRESSOR [patent_app_type] => utility [patent_app_number] => 19/099074 [patent_app_country] => US [patent_app_date] => 2023-07-28 [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] => -19 [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] => 19099074 [rel_patent_id] =>[rel_patent_doc_number] =>)
19/099074
SCROLL FOR SCROLL COMPRESSOR AND SCROLL COMPRESSOR Jul 27, 2023 Pending
Array ( [id] => 20512028 [patent_doc_number] => 20260036129 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2026-02-05 [patent_title] => DRIVING MEMBER FOR SCROLL COMPRESSOR AND SCROLL COMPRESSOR [patent_app_type] => utility [patent_app_number] => 19/099093 [patent_app_country] => US [patent_app_date] => 2023-07-28 [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] => -24 [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] => 19099093 [rel_patent_id] =>[rel_patent_doc_number] =>)
19/099093
DRIVING MEMBER FOR SCROLL COMPRESSOR AND SCROLL COMPRESSOR Jul 27, 2023 Pending
Array ( [id] => 20586031 [patent_doc_number] => 20260071623 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2026-03-12 [patent_title] => CO-ROTATING SCROLL COMPRESSOR [patent_app_type] => utility [patent_app_number] => 19/124943 [patent_app_country] => US [patent_app_date] => 2023-07-28 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 7080 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -6 [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] => 19124943 [rel_patent_id] =>[rel_patent_doc_number] =>)
19/124943
CO-ROTATING SCROLL COMPRESSOR Jul 27, 2023 Pending
Array ( [id] => 18940330 [patent_doc_number] => 20240035469 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-02-01 [patent_title] => Apparatus and Method for Regulating a Delivery Volume of a Displacement Pump [patent_app_type] => utility [patent_app_number] => 18/224471 [patent_app_country] => US [patent_app_date] => 2023-07-20 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 2430 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -13 [patent_words_short_claim] => 50 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18224471 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/224471
Apparatus and Method for Regulating a Delivery Volume of a Displacement Pump Jul 19, 2023 Pending
Array ( [id] => 18740407 [patent_doc_number] => 20230349384 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-11-02 [patent_title] => SCREW COMPRESSOR WITH OIL INJECTION AT MULTIPLE VOLUME RATIOS [patent_app_type] => utility [patent_app_number] => 18/218428 [patent_app_country] => US [patent_app_date] => 2023-07-05 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 3692 [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] => 18218428 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/218428
Screw compressor with oil injection at multiple volume ratios Jul 4, 2023 Issued
Array ( [id] => 20078211 [patent_doc_number] => 12352268 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2025-07-08 [patent_title] => Pumps, compressors, and expanders with a teardrop-shaped rotor [patent_app_type] => utility [patent_app_number] => 18/346234 [patent_app_country] => US [patent_app_date] => 2023-07-02 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 19 [patent_figures_cnt] => 37 [patent_no_of_words] => 6065 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 183 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18346234 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/346234
Pumps, compressors, and expanders with a teardrop-shaped rotor Jul 1, 2023 Issued
Array ( [id] => 20439245 [patent_doc_number] => 12510075 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2025-12-30 [patent_title] => Screw compressor [patent_app_type] => utility [patent_app_number] => 18/871045 [patent_app_country] => US [patent_app_date] => 2023-06-27 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 5 [patent_figures_cnt] => 5 [patent_no_of_words] => 576 [patent_no_of_claims] => 10 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 439 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18871045 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/871045
Screw compressor Jun 26, 2023 Issued
Array ( [id] => 19594755 [patent_doc_number] => 12152586 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2024-11-26 [patent_title] => Hydraulic machine with lubricated rotating spool [patent_app_type] => utility [patent_app_number] => 18/206304 [patent_app_country] => US [patent_app_date] => 2023-06-06 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 6 [patent_no_of_words] => 4191 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 5 [patent_words_short_claim] => 216 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18206304 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/206304
Hydraulic machine with lubricated rotating spool Jun 5, 2023 Issued
Array ( [id] => 19601901 [patent_doc_number] => 20240392781 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-11-28 [patent_title] => ROTOR SHAFT HUB AND BEARING FOR A HIGH PRESSURE FLUID PUMP ASSEMBLY [patent_app_type] => utility [patent_app_number] => 18/202855 [patent_app_country] => US [patent_app_date] => 2023-05-26 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 4950 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -10 [patent_words_short_claim] => 134 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18202855 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/202855
Rotor shaft hub and bearing for a high pressure fluid pump assembly May 25, 2023 Issued
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