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] => 20453615 [patent_doc_number] => 12516667 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2026-01-06 [patent_title] => Liquid pump unit with latch mechanism [patent_app_type] => utility [patent_app_number] => 18/919561 [patent_app_country] => US [patent_app_date] => 2024-10-18 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 6 [patent_figures_cnt] => 6 [patent_no_of_words] => 0 [patent_no_of_claims] => 15 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 232 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18919561 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/919561
Liquid pump unit with latch mechanism Oct 17, 2024 Issued
Array ( [id] => 19709984 [patent_doc_number] => 20250020126 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-01-16 [patent_title] => COMPRESSOR [patent_app_type] => utility [patent_app_number] => 18/900159 [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] => 6323 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -18 [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] => 18900159 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/900159
COMPRESSOR Sep 26, 2024 Pending
Array ( [id] => 19746547 [patent_doc_number] => 20250035112 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-01-30 [patent_title] => Grease pump unit comprising two serially connected pumps [patent_app_type] => utility [patent_app_number] => 18/892356 [patent_app_country] => US [patent_app_date] => 2024-09-21 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 3826 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -8 [patent_words_short_claim] => 212 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18892356 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/892356
Grease pump unit comprising two serially connected pumps Sep 20, 2024 Pending
Array ( [id] => 19863190 [patent_doc_number] => 20250101976 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-03-27 [patent_title] => SCROLL COMPRESSOR [patent_app_type] => utility [patent_app_number] => 18/886199 [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] => 11392 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -13 [patent_words_short_claim] => 179 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18886199 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/886199
SCROLL COMPRESSOR Sep 15, 2024 Pending
Array ( [id] => 20264652 [patent_doc_number] => 12435632 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2025-10-07 [patent_title] => Rotational engine with inner and outer rings [patent_app_type] => utility [patent_app_number] => 18/826921 [patent_app_country] => US [patent_app_date] => 2024-09-06 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 7 [patent_figures_cnt] => 11 [patent_no_of_words] => 6863 [patent_no_of_claims] => 14 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 260 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18826921 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/826921
Rotational engine with inner and outer rings Sep 5, 2024 Issued
Array ( [id] => 20060449 [patent_doc_number] => 20250198671 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-06-19 [patent_title] => COMPRESSOR AND HOME APPLIANCE INCLUDING THE SAME [patent_app_type] => utility [patent_app_number] => 18/825295 [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] => 4543 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -18 [patent_words_short_claim] => 122 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18825295 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/825295
COMPRESSOR AND HOME APPLIANCE INCLUDING THE SAME Sep 4, 2024 Pending
Array ( [id] => 19659233 [patent_doc_number] => 20240426298 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-12-26 [patent_title] => COMPLEX SCREW ROTORS [patent_app_type] => utility [patent_app_number] => 18/821391 [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] => 12760 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -16 [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] => 18821391 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/821391
Complex screw rotors with a central circular cross section connecting right-hand and left-hand sections of the rotors Aug 29, 2024 Issued
Array ( [id] => 20542721 [patent_doc_number] => 20260049611 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2026-02-19 [patent_title] => REMOVABLE PUMP HEAD WITH A POLYMERIC SHAFT COUPLER [patent_app_type] => utility [patent_app_number] => 18/805053 [patent_app_country] => US [patent_app_date] => 2024-08-14 [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] => -15 [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] => 18805053 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/805053
REMOVABLE PUMP HEAD WITH A POLYMERIC SHAFT COUPLER Aug 13, 2024 Pending
Array ( [id] => 19693732 [patent_doc_number] => 20250012277 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-01-09 [patent_title] => ECCENTRIC SCREW PUMP WITH MAGNETIC COUPLING [patent_app_type] => utility [patent_app_number] => 18/762832 [patent_app_country] => US [patent_app_date] => 2024-07-03 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 3371 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -16 [patent_words_short_claim] => 175 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18762832 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/762832
ECCENTRIC SCREW PUMP WITH MAGNETIC COUPLING Jul 2, 2024 Pending
Array ( [id] => 19693731 [patent_doc_number] => 20250012276 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-01-09 [patent_title] => ECCENTRIC SCREW PUMP [patent_app_type] => utility [patent_app_number] => 18/761808 [patent_app_country] => US [patent_app_date] => 2024-07-02 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 2740 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -10 [patent_words_short_claim] => 38 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18761808 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/761808
Eccentric screw pump with weakening recesses in the power train Jul 1, 2024 Issued
Array ( [id] => 19770818 [patent_doc_number] => 20250052244 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-02-13 [patent_title] => Compressor Having Shutdown Valve Assembly [patent_app_type] => utility [patent_app_number] => 18/753630 [patent_app_country] => US [patent_app_date] => 2024-06-25 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 9213 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -18 [patent_words_short_claim] => 195 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18753630 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/753630
Compressor Having Shutdown Valve Assembly Jun 24, 2024 Pending
Array ( [id] => 19940947 [patent_doc_number] => 12313071 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2025-05-27 [patent_title] => Gear pump with suction housing element providing a tight seal between suction and high-pressure chamber to increase pump efficiency and method of providing tight seal [patent_app_type] => utility [patent_app_number] => 18/744217 [patent_app_country] => US [patent_app_date] => 2024-06-14 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 7 [patent_figures_cnt] => 8 [patent_no_of_words] => 1210 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 221 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18744217 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/744217
Gear pump with suction housing element providing a tight seal between suction and high-pressure chamber to increase pump efficiency and method of providing tight seal Jun 13, 2024 Issued
Array ( [id] => 19464982 [patent_doc_number] => 20240318651 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-09-26 [patent_title] => FLUID MACHINERY, HEAT EXCHANGE APPARATUS AND OPERATION METHOD FOR FLUID MACHINERY [patent_app_type] => utility [patent_app_number] => 18/733486 [patent_app_country] => US [patent_app_date] => 2024-06-04 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 26662 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -19 [patent_words_short_claim] => 233 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18733486 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/733486
Fluid machinery, heat exchange apparatus and operation method for fluid machinery Jun 3, 2024 Issued
Array ( [id] => 20020254 [patent_doc_number] => 20250158476 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-05-15 [patent_title] => FAN MOTOR [patent_app_type] => utility [patent_app_number] => 18/673542 [patent_app_country] => US [patent_app_date] => 2024-05-24 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 11980 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -19 [patent_words_short_claim] => 213 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18673542 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/673542
Fan motor cooling May 23, 2024 Issued
Array ( [id] => 20129857 [patent_doc_number] => 12372162 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2025-07-29 [patent_title] => Electro-magnetic throttle valve with integrated blowdown conduit [patent_app_type] => utility [patent_app_number] => 18/674405 [patent_app_country] => US [patent_app_date] => 2024-05-24 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 9 [patent_figures_cnt] => 9 [patent_no_of_words] => 0 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 91 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18674405 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/674405
Electro-magnetic throttle valve with integrated blowdown conduit May 23, 2024 Issued
Array ( [id] => 19643649 [patent_doc_number] => 20240418169 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-12-19 [patent_title] => TWO-STAGE REFRIGERANT COMPRESSOR AND OPERATION METHOD THEREOF [patent_app_type] => utility [patent_app_number] => 18/661959 [patent_app_country] => US [patent_app_date] => 2024-05-13 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 8340 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -16 [patent_words_short_claim] => 411 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18661959 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/661959
Two-stage refrigerant compressor and operation method thereof May 12, 2024 Issued
Array ( [id] => 19557274 [patent_doc_number] => 20240369066 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-11-07 [patent_title] => Double-Flow Pump [patent_app_type] => utility [patent_app_number] => 18/651567 [patent_app_country] => US [patent_app_date] => 2024-04-30 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 5263 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 83 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18651567 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/651567
Double-Flow Pump Apr 29, 2024 Pending
Array ( [id] => 20173604 [patent_doc_number] => 12392340 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2025-08-19 [patent_title] => Single-entry screw pump [patent_app_type] => utility [patent_app_number] => 18/651519 [patent_app_country] => US [patent_app_date] => 2024-04-30 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 6 [patent_no_of_words] => 0 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 2 [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] => 18651519 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/651519
Single-entry screw pump Apr 29, 2024 Issued
Array ( [id] => 19381753 [patent_doc_number] => 20240271623 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-08-15 [patent_title] => COMPRESSOR AND REFRIGERATION APPARATUS [patent_app_type] => utility [patent_app_number] => 18/643581 [patent_app_country] => US [patent_app_date] => 2024-04-23 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 11226 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -19 [patent_words_short_claim] => 113 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18643581 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/643581
Scroll compressor with blocking part for oil separation Apr 22, 2024 Issued
Array ( [id] => 20414692 [patent_doc_number] => 12497965 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2025-12-16 [patent_title] => Refrigerant cooled electric motor [patent_app_type] => utility [patent_app_number] => 18/638885 [patent_app_country] => US [patent_app_date] => 2024-04-18 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 5 [patent_figures_cnt] => 5 [patent_no_of_words] => 0 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 116 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18638885 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/638885
Refrigerant cooled electric motor Apr 17, 2024 Issued
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