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] => 15149117 [patent_doc_number] => 20190353036 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2019-11-21 [patent_title] => Rotary Piston Engine with Solid Particle Fuel Capability [patent_app_type] => utility [patent_app_number] => 15/980162 [patent_app_country] => US [patent_app_date] => 2018-05-15 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 9922 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -14 [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] => 15980162 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/980162
Rotary Piston Engine with Solid Particle Fuel Capability May 14, 2018 Abandoned
Array ( [id] => 16415217 [patent_doc_number] => 10823097 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2020-11-03 [patent_title] => Method and system for non-functional combustion chamber detection [patent_app_type] => utility [patent_app_number] => 15/980724 [patent_app_country] => US [patent_app_date] => 2018-05-15 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 6 [patent_figures_cnt] => 6 [patent_no_of_words] => 6436 [patent_no_of_claims] => 18 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 144 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 15980724 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/980724
Method and system for non-functional combustion chamber detection May 14, 2018 Issued
Array ( [id] => 16246828 [patent_doc_number] => 10746175 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2020-08-18 [patent_title] => Scroll compressor with suction pipe improvements [patent_app_type] => utility [patent_app_number] => 16/628000 [patent_app_country] => US [patent_app_date] => 2018-05-09 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 6 [patent_figures_cnt] => 6 [patent_no_of_words] => 4993 [patent_no_of_claims] => 7 [patent_no_of_ind_claims] => 1 [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] => 16628000 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/628000
Scroll compressor with suction pipe improvements May 8, 2018 Issued
Array ( [id] => 13553725 [patent_doc_number] => 20180328410 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2018-11-15 [patent_title] => LUBRICATION OF GEARS IN TWIN-SHAFT PUMPS [patent_app_type] => utility [patent_app_number] => 15/975208 [patent_app_country] => US [patent_app_date] => 2018-05-09 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 3845 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -18 [patent_words_short_claim] => 99 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 15975208 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/975208
LUBRICATION OF GEARS IN TWIN-SHAFT PUMPS May 8, 2018 Abandoned
Array ( [id] => 13553629 [patent_doc_number] => 20180328362 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2018-11-15 [patent_title] => SCROLL COMPRESSOR [patent_app_type] => utility [patent_app_number] => 15/974358 [patent_app_country] => US [patent_app_date] => 2018-05-08 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 14889 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -18 [patent_words_short_claim] => 152 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 15974358 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/974358
Scroll compressor with oil separator May 7, 2018 Issued
Array ( [id] => 13538285 [patent_doc_number] => 20180320689 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2018-11-08 [patent_title] => SCROLL COMPRESSOR [patent_app_type] => utility [patent_app_number] => 15/963269 [patent_app_country] => US [patent_app_date] => 2018-04-26 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 5013 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -9 [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] => 15963269 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/963269
Scroll compressor with fixing features Apr 25, 2018 Issued
Array ( [id] => 13373571 [patent_doc_number] => 20180238327 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2018-08-23 [patent_title] => SCROLL COMPRESSOR WITH RECESSES AND PROTRUSIONS [patent_app_type] => utility [patent_app_number] => 15/956970 [patent_app_country] => US [patent_app_date] => 2018-04-19 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 5655 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 140 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 15956970 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/956970
Scroll compressor with recesses and protrusions Apr 18, 2018 Issued
Array ( [id] => 16415290 [patent_doc_number] => 10823170 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2020-11-03 [patent_title] => Transmission with double-flow sliding vane pump [patent_app_type] => utility [patent_app_number] => 15/956838 [patent_app_country] => US [patent_app_date] => 2018-04-19 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 3 [patent_no_of_words] => 6602 [patent_no_of_claims] => 10 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 316 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 15956838 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/956838
Transmission with double-flow sliding vane pump Apr 18, 2018 Issued
Array ( [id] => 13344593 [patent_doc_number] => 20180223836 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2018-08-09 [patent_title] => FLUID TRANSPORT DEVICE [patent_app_type] => utility [patent_app_number] => 15/947781 [patent_app_country] => US [patent_app_date] => 2018-04-07 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 2591 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -1 [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] => 15947781 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/947781
Axis eccentric screw pump with decreasing sectional area of stator with a constant diameter rotor Apr 6, 2018 Issued
Array ( [id] => 13344595 [patent_doc_number] => 20180223837 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2018-08-09 [patent_title] => FLUID TRANSPORT DEVICE [patent_app_type] => utility [patent_app_number] => 15/947783 [patent_app_country] => US [patent_app_date] => 2018-04-07 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 2591 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -1 [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] => 15947783 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/947783
Axis eccentric screw pump with an increasing diameter rotor with a constant sectional area stator Apr 6, 2018 Issued
Array ( [id] => 13344597 [patent_doc_number] => 20180223838 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2018-08-09 [patent_title] => FLUID TRANSPORT DEVICE [patent_app_type] => utility [patent_app_number] => 15/947785 [patent_app_country] => US [patent_app_date] => 2018-04-07 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 2571 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -1 [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] => 15947785 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/947785
Liquid transport device with decreasing eccentricity of the rotor Apr 6, 2018 Issued
Array ( [id] => 13463265 [patent_doc_number] => 20180283175 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2018-10-04 [patent_title] => ROTARY ENGINE [patent_app_type] => utility [patent_app_number] => 15/942832 [patent_app_country] => US [patent_app_date] => 2018-04-02 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 10081 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -18 [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] => 15942832 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/942832
Rotary engine with oil pump Apr 1, 2018 Issued
Array ( [id] => 17527447 [patent_doc_number] => 11300124 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2022-04-12 [patent_title] => Single-screw compressor with a gap adjuster mechanism [patent_app_type] => utility [patent_app_number] => 16/496267 [patent_app_country] => US [patent_app_date] => 2018-03-20 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 13 [patent_figures_cnt] => 13 [patent_no_of_words] => 22591 [patent_no_of_claims] => 11 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 182 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16496267 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/496267
Single-screw compressor with a gap adjuster mechanism Mar 19, 2018 Issued
Array ( [id] => 15325761 [patent_doc_number] => 20200003210 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2020-01-02 [patent_title] => OIL PUMP [patent_app_type] => utility [patent_app_number] => 16/489711 [patent_app_country] => US [patent_app_date] => 2018-03-12 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 7854 [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] => 16489711 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/489711
OIL PUMP Mar 11, 2018 Abandoned
Array ( [id] => 15325759 [patent_doc_number] => 20200003209 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2020-01-02 [patent_title] => OIL PUMP [patent_app_type] => utility [patent_app_number] => 16/489710 [patent_app_country] => US [patent_app_date] => 2018-03-12 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 7677 [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] => 16489710 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/489710
OIL PUMP Mar 11, 2018 Abandoned
Array ( [id] => 16369750 [patent_doc_number] => 10801496 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2020-10-13 [patent_title] => Positive-displacement machine according to the spiral principle, method for operating a positive-displacement machine, positive-displacement spiral, vehicle air-conditioning system and vehicle [patent_app_type] => utility [patent_app_number] => 15/916527 [patent_app_country] => US [patent_app_date] => 2018-03-09 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 7 [patent_figures_cnt] => 11 [patent_no_of_words] => 7668 [patent_no_of_claims] => 11 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 213 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 15916527 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/916527
Positive-displacement machine according to the spiral principle, method for operating a positive-displacement machine, positive-displacement spiral, vehicle air-conditioning system and vehicle Mar 8, 2018 Issued
Array ( [id] => 13734933 [patent_doc_number] => 20180371934 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2018-12-27 [patent_title] => SCREW EXPANDER [patent_app_type] => utility [patent_app_number] => 15/911181 [patent_app_country] => US [patent_app_date] => 2018-03-05 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 2732 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -9 [patent_words_short_claim] => 117 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 15911181 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/911181
Screw expander with adjustable valve Mar 4, 2018 Issued
Array ( [id] => 15498123 [patent_doc_number] => 20200049250 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2020-02-13 [patent_title] => CONTINUOUSLY VARIABLE TRANSMISSION AND TRANSMISSION SYSTEM [patent_app_type] => utility [patent_app_number] => 16/492699 [patent_app_country] => US [patent_app_date] => 2018-03-02 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 10682 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -19 [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] => 16492699 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/492699
Continuously variable transmission and transmission system Mar 1, 2018 Issued
Array ( [id] => 15325763 [patent_doc_number] => 20200003211 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2020-01-02 [patent_title] => SCREW COMPRESSOR [patent_app_type] => utility [patent_app_number] => 16/484796 [patent_app_country] => US [patent_app_date] => 2018-02-09 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 24202 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -13 [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] => 16484796 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/484796
SCREW COMPRESSOR Feb 8, 2018 Abandoned
Array ( [id] => 12815113 [patent_doc_number] => 20180163541 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2018-06-14 [patent_title] => ROTORY ENGINE WITH ROTOR LAND [patent_app_type] => utility [patent_app_number] => 15/880688 [patent_app_country] => US [patent_app_date] => 2018-01-26 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 5228 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -15 [patent_words_short_claim] => 162 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 15880688 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/880688
ROTORY ENGINE WITH ROTOR LAND Jan 25, 2018 Abandoned
Menu