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] => 15179785 [patent_doc_number] => 20190360484 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2019-11-28 [patent_title] => Connection Assembly with Feed Pump and Elastic Element [patent_app_type] => utility [patent_app_number] => 16/419386 [patent_app_country] => US [patent_app_date] => 2019-05-22 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 3631 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -10 [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] => 16419386 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/419386
Connection assembly with feed pump and elastic element May 21, 2019 Issued
Array ( [id] => 17891157 [patent_doc_number] => 11454116 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2022-09-27 [patent_title] => Scroll expander with exhaust path thru bearings and a partition plate [patent_app_type] => utility [patent_app_number] => 17/055968 [patent_app_country] => US [patent_app_date] => 2019-05-17 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 5 [patent_figures_cnt] => 5 [patent_no_of_words] => 5868 [patent_no_of_claims] => 7 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 549 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17055968 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/055968
Scroll expander with exhaust path thru bearings and a partition plate May 16, 2019 Issued
Array ( [id] => 14809401 [patent_doc_number] => 20190271310 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2019-09-05 [patent_title] => ROTARY POSITIVE-DISPLACEMENT MACHINE [patent_app_type] => utility [patent_app_number] => 16/415613 [patent_app_country] => US [patent_app_date] => 2019-05-17 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 12403 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -23 [patent_words_short_claim] => 109 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16415613 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/415613
Synchronized conical screw compressor or pump May 16, 2019 Issued
Array ( [id] => 17681492 [patent_doc_number] => 11365734 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2022-06-21 [patent_title] => Positive-displacement compressor having an automatic compression ratio-adjustment system [patent_app_type] => utility [patent_app_number] => 15/733771 [patent_app_country] => US [patent_app_date] => 2019-04-24 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 5 [patent_figures_cnt] => 14 [patent_no_of_words] => 4246 [patent_no_of_claims] => 9 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 375 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 15733771 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/733771
Positive-displacement compressor having an automatic compression ratio-adjustment system Apr 23, 2019 Issued
Array ( [id] => 14686289 [patent_doc_number] => 20190242259 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2019-08-08 [patent_title] => CIRCULATING PISTON ENGINE HAVING A ROTARY VALVE ASSEMBLY [patent_app_type] => utility [patent_app_number] => 16/384211 [patent_app_country] => US [patent_app_date] => 2019-04-15 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 8517 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -16 [patent_words_short_claim] => 144 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16384211 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/384211
Circulating piston engine having a rotary valve assembly Apr 14, 2019 Issued
Array ( [id] => 16376935 [patent_doc_number] => 20200325777 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2020-10-15 [patent_title] => APEX SEAL ARRANGEMENT FOR ROTARY INTERNAL COMBUSTION ENGINE [patent_app_type] => utility [patent_app_number] => 16/382776 [patent_app_country] => US [patent_app_date] => 2019-04-12 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 5340 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 110 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16382776 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/382776
Apex seal arrangement for rotary internal combustion engine Apr 11, 2019 Issued
Array ( [id] => 17491040 [patent_doc_number] => 11280334 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2022-03-22 [patent_title] => Fluid delivery system with a shaft having a through-passage [patent_app_type] => utility [patent_app_number] => 16/374456 [patent_app_country] => US [patent_app_date] => 2019-04-03 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 12 [patent_figures_cnt] => 14 [patent_no_of_words] => 15768 [patent_no_of_claims] => 18 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 371 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16374456 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/374456
Fluid delivery system with a shaft having a through-passage Apr 2, 2019 Issued
Array ( [id] => 14582891 [patent_doc_number] => 20190219054 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2019-07-18 [patent_title] => PUMP MOTOR FOR HIGH TEMPERATURE FLUIDS [patent_app_type] => utility [patent_app_number] => 16/368160 [patent_app_country] => US [patent_app_date] => 2019-03-28 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 6443 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -19 [patent_words_short_claim] => 168 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16368160 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/368160
Pump motor for high temperature fluids Mar 27, 2019 Issued
Array ( [id] => 16763057 [patent_doc_number] => 20210108638 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2021-04-15 [patent_title] => DRY-TYPE VACUUM PUMP [patent_app_type] => utility [patent_app_number] => 17/044615 [patent_app_country] => US [patent_app_date] => 2019-03-27 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 4741 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -10 [patent_words_short_claim] => 135 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17044615 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/044615
Dry vacuum pump with a pressure variation reducing expansion device between a pumping side volume and an oil sump Mar 26, 2019 Issued
Array ( [id] => 16762979 [patent_doc_number] => 20210108560 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2021-04-15 [patent_title] => ROTARY PISTON ENGINE [patent_app_type] => utility [patent_app_number] => 16/981044 [patent_app_country] => US [patent_app_date] => 2019-03-13 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 4012 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -5 [patent_words_short_claim] => 27 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16981044 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/981044
Rotary piston compressor/pump/blower with a ventilation channel Mar 12, 2019 Issued
Array ( [id] => 16878709 [patent_doc_number] => 11028847 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2021-06-08 [patent_title] => Gear pump for venting trapped volume [patent_app_type] => utility [patent_app_number] => 16/290887 [patent_app_country] => US [patent_app_date] => 2019-03-02 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 7 [patent_no_of_words] => 4804 [patent_no_of_claims] => 17 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 184 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16290887 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/290887
Gear pump for venting trapped volume Mar 1, 2019 Issued
Array ( [id] => 17030347 [patent_doc_number] => 11092154 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2021-08-17 [patent_title] => Scroll compressor [patent_app_type] => utility [patent_app_number] => 16/290099 [patent_app_country] => US [patent_app_date] => 2019-03-01 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 6 [patent_figures_cnt] => 7 [patent_no_of_words] => 7250 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 202 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16290099 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/290099
Scroll compressor Feb 28, 2019 Issued
Array ( [id] => 17491043 [patent_doc_number] => 11280337 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2022-03-22 [patent_title] => Pump body assembly and compressor having crank shaft with eccentric components, disc partition plate, and annular partition plate [patent_app_type] => utility [patent_app_number] => 16/280898 [patent_app_country] => US [patent_app_date] => 2019-02-20 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 8 [patent_figures_cnt] => 12 [patent_no_of_words] => 6949 [patent_no_of_claims] => 14 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 169 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16280898 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/280898
Pump body assembly and compressor having crank shaft with eccentric components, disc partition plate, and annular partition plate Feb 19, 2019 Issued
Array ( [id] => 16658207 [patent_doc_number] => 20210054843 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2021-02-25 [patent_title] => DRY VACUUM PUMP [patent_app_type] => utility [patent_app_number] => 16/964813 [patent_app_country] => US [patent_app_date] => 2019-02-14 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 4399 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -12 [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] => 16964813 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/964813
Dry vacuum pump with at least one sealing device with a deflector Feb 13, 2019 Issued
Array ( [id] => 14408591 [patent_doc_number] => 20190170139 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2019-06-06 [patent_title] => Compressor [patent_app_type] => utility [patent_app_number] => 16/257743 [patent_app_country] => US [patent_app_date] => 2019-01-25 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 10832 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -52 [patent_words_short_claim] => 230 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16257743 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/257743
Scroll compressor orbital path balancing mass Jan 24, 2019 Issued
Array ( [id] => 16191609 [patent_doc_number] => 20200232458 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2020-07-23 [patent_title] => GEAR PUMP AND GEAR ASSEMBLY [patent_app_type] => utility [patent_app_number] => 16/253546 [patent_app_country] => US [patent_app_date] => 2019-01-22 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 3319 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -18 [patent_words_short_claim] => 151 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16253546 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/253546
Gear pump and gear assembly Jan 21, 2019 Issued
Array ( [id] => 17208246 [patent_doc_number] => 11168608 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2021-11-09 [patent_title] => Single chamber multiple independent contour rotary machine [patent_app_type] => utility [patent_app_number] => 16/252837 [patent_app_country] => US [patent_app_date] => 2019-01-21 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 32 [patent_figures_cnt] => 32 [patent_no_of_words] => 8133 [patent_no_of_claims] => 21 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 326 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16252837 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/252837
Single chamber multiple independent contour rotary machine Jan 20, 2019 Issued
Array ( [id] => 16843479 [patent_doc_number] => 11015553 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2021-05-25 [patent_title] => Exhaust gas recirculation and control with twin scroll turbines [patent_app_type] => utility [patent_app_number] => 16/243386 [patent_app_country] => US [patent_app_date] => 2019-01-09 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 10 [patent_no_of_words] => 7240 [patent_no_of_claims] => 15 [patent_no_of_ind_claims] => 4 [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] => 16243386 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/243386
Exhaust gas recirculation and control with twin scroll turbines Jan 8, 2019 Issued
Array ( [id] => 16476843 [patent_doc_number] => 10851776 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2020-12-01 [patent_title] => Sliding member and sliding machine [patent_app_type] => utility [patent_app_number] => 16/239015 [patent_app_country] => US [patent_app_date] => 2019-01-03 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 23 [patent_figures_cnt] => 28 [patent_no_of_words] => 11735 [patent_no_of_claims] => 8 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 151 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16239015 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/239015
Sliding member and sliding machine Jan 2, 2019 Issued
Array ( [id] => 17068054 [patent_doc_number] => 20210270269 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2021-09-02 [patent_title] => Slide Valve, Slide Valve Adjustment Mechanism and Screw Compressor [patent_app_type] => utility [patent_app_number] => 17/261203 [patent_app_country] => US [patent_app_date] => 2018-12-20 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 4411 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -10 [patent_words_short_claim] => 181 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17261203 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/261203
Slide valve, slide valve adjustment mechanism and screw compressor Dec 19, 2018 Issued
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