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] => 15179789 [patent_doc_number] => 20190360486 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2019-11-28 [patent_title] => SCROLL COMPRESSOR [patent_app_type] => utility [patent_app_number] => 16/478760 [patent_app_country] => US [patent_app_date] => 2018-01-25 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 4095 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -5 [patent_words_short_claim] => 78 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16478760 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/478760
SCROLL COMPRESSOR Jan 24, 2018 Abandoned
Array ( [id] => 12840493 [patent_doc_number] => 20180172004 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2018-06-21 [patent_title] => SCROLL COMPRESSOR [patent_app_type] => utility [patent_app_number] => 15/876396 [patent_app_country] => US [patent_app_date] => 2018-01-22 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 15126 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 197 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 15876396 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/876396
Scroll compressor sealing Jan 21, 2018 Issued
Array ( [id] => 12911005 [patent_doc_number] => 20180195511 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2018-07-12 [patent_title] => FLUID COMPRESSOR [patent_app_type] => utility [patent_app_number] => 15/869151 [patent_app_country] => US [patent_app_date] => 2018-01-12 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 2104 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -7 [patent_words_short_claim] => 78 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 15869151 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/869151
FLUID COMPRESSOR Jan 11, 2018 Abandoned
Array ( [id] => 15325765 [patent_doc_number] => 20200003212 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2020-01-02 [patent_title] => SINGLE-SCREW COMPRESSOR [patent_app_type] => utility [patent_app_number] => 16/481375 [patent_app_country] => US [patent_app_date] => 2017-12-27 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 11814 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -8 [patent_words_short_claim] => 245 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16481375 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/481375
Single-screw compressor Dec 26, 2017 Issued
Array ( [id] => 15437231 [patent_doc_number] => 20200032799 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2020-01-30 [patent_title] => IMPROVEMENTS IN ROTARY CLAW PUMPS [patent_app_type] => utility [patent_app_number] => 16/484214 [patent_app_country] => US [patent_app_date] => 2017-12-27 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 6489 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -11 [patent_words_short_claim] => 19 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16484214 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/484214
IMPROVEMENTS IN ROTARY CLAW PUMPS Dec 26, 2017 Abandoned
Array ( [id] => 16246827 [patent_doc_number] => 10746174 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2020-08-18 [patent_title] => Scroll compressor with an orbital disc lubrication system [patent_app_type] => utility [patent_app_number] => 15/852200 [patent_app_country] => US [patent_app_date] => 2017-12-22 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 5 [patent_figures_cnt] => 8 [patent_no_of_words] => 4866 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 278 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 15852200 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/852200
Scroll compressor with an orbital disc lubrication system Dec 21, 2017 Issued
Array ( [id] => 12840484 [patent_doc_number] => 20180172001 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2018-06-21 [patent_title] => PLATE GEAR PUMP AND HYDRAULIC CENTERING PINS [patent_app_type] => utility [patent_app_number] => 15/846763 [patent_app_country] => US [patent_app_date] => 2017-12-19 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 3296 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -9 [patent_words_short_claim] => 210 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 15846763 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/846763
Plate gear pump and hydraulic centering pins Dec 18, 2017 Issued
Array ( [id] => 12625800 [patent_doc_number] => 20180100430 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2018-04-12 [patent_title] => SUPERCHARGER HAVING CONSTANT LEAD HELIX ANGLE TIMING GEARS [patent_app_type] => utility [patent_app_number] => 15/836991 [patent_app_country] => US [patent_app_date] => 2017-12-11 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 2555 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [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] => 15836991 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/836991
SUPERCHARGER HAVING CONSTANT LEAD HELIX ANGLE TIMING GEARS Dec 10, 2017 Abandoned
Array ( [id] => 15024689 [patent_doc_number] => 20190323349 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2019-10-24 [patent_title] => SCREW ROTOR DEVICE [patent_app_type] => utility [patent_app_number] => 16/462279 [patent_app_country] => US [patent_app_date] => 2017-11-20 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 4509 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -18 [patent_words_short_claim] => 37 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16462279 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/462279
SCREW ROTOR DEVICE Nov 19, 2017 Abandoned
Array ( [id] => 14311341 [patent_doc_number] => 20190145374 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2019-05-16 [patent_title] => Load Balanced Power Section of Progressing Cavity Device [patent_app_type] => utility [patent_app_number] => 15/814541 [patent_app_country] => US [patent_app_date] => 2017-11-16 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 10536 [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] => 15814541 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/814541
Load balanced power section of progressing cavity device Nov 15, 2017 Issued
Array ( [id] => 12731395 [patent_doc_number] => 20180135632 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2018-05-17 [patent_title] => ROTARY COMPRESSOR [patent_app_type] => utility [patent_app_number] => 15/812822 [patent_app_country] => US [patent_app_date] => 2017-11-14 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 12759 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -7 [patent_words_short_claim] => 1062 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 15812822 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/812822
Refrigerant path holes in a rotary compressor Nov 13, 2017 Issued
Array ( [id] => 15365091 [patent_doc_number] => 20200018310 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2020-01-16 [patent_title] => SCROLL-TYPE COMPRESSOR [patent_app_type] => utility [patent_app_number] => 16/471292 [patent_app_country] => US [patent_app_date] => 2017-11-09 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 4836 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -6 [patent_words_short_claim] => 197 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16471292 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/471292
SCROLL-TYPE COMPRESSOR Nov 8, 2017 Abandoned
Array ( [id] => 15310517 [patent_doc_number] => 10519953 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2019-12-31 [patent_title] => Rotary compressor [patent_app_type] => utility [patent_app_number] => 15/801961 [patent_app_country] => US [patent_app_date] => 2017-11-02 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 5 [patent_figures_cnt] => 8 [patent_no_of_words] => 7572 [patent_no_of_claims] => 1 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 514 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 15801961 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/801961
Rotary compressor Nov 1, 2017 Issued
Array ( [id] => 12662266 [patent_doc_number] => 20180112588 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2018-04-26 [patent_title] => METHOD OF SUPERCHARGING AN INTERNAL COMBUSTION ENGINE [patent_app_type] => utility [patent_app_number] => 15/788980 [patent_app_country] => US [patent_app_date] => 2017-10-20 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 6314 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -14 [patent_words_short_claim] => 203 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 15788980 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/788980
Method of supercharging an internal combustion engine Oct 19, 2017 Issued
Array ( [id] => 15346869 [patent_doc_number] => 20200011326 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2020-01-09 [patent_title] => VANE PUMP [patent_app_type] => utility [patent_app_number] => 16/347586 [patent_app_country] => US [patent_app_date] => 2017-10-18 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 14571 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -12 [patent_words_short_claim] => 53 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16347586 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/347586
VANE PUMP Oct 17, 2017 Abandoned
Array ( [id] => 13128435 [patent_doc_number] => 10082142 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2018-09-25 [patent_title] => Screw air compressor with bypass [patent_app_type] => utility [patent_app_number] => 15/786854 [patent_app_country] => US [patent_app_date] => 2017-10-18 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 19 [patent_figures_cnt] => 25 [patent_no_of_words] => 6315 [patent_no_of_claims] => 25 [patent_no_of_ind_claims] => 4 [patent_words_short_claim] => 504 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 15786854 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/786854
Screw air compressor with bypass Oct 17, 2017 Issued
Array ( [id] => 16757322 [patent_doc_number] => 10975863 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2021-04-13 [patent_title] => Gear pump or motor with features for determining if assembled correctly [patent_app_type] => utility [patent_app_number] => 16/651351 [patent_app_country] => US [patent_app_date] => 2017-10-13 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 6 [patent_figures_cnt] => 6 [patent_no_of_words] => 3346 [patent_no_of_claims] => 2 [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] => 16651351 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/651351
Gear pump or motor with features for determining if assembled correctly Oct 12, 2017 Issued
Array ( [id] => 16941708 [patent_doc_number] => 11053937 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2021-07-06 [patent_title] => Curved flexible impeller [patent_app_type] => utility [patent_app_number] => 16/342896 [patent_app_country] => US [patent_app_date] => 2017-10-05 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 8 [patent_figures_cnt] => 10 [patent_no_of_words] => 3609 [patent_no_of_claims] => 2 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 134 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16342896 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/342896
Curved flexible impeller Oct 4, 2017 Issued
Array ( [id] => 14133463 [patent_doc_number] => 20190101121 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2019-04-04 [patent_title] => SCREW COMPRESSOR WITH OIL INJECTION AT MULTIPLE VOLUME RATIOS [patent_app_type] => utility [patent_app_number] => 15/724787 [patent_app_country] => US [patent_app_date] => 2017-10-04 [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] => -18 [patent_words_short_claim] => 55 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 15724787 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/724787
Screw compressor with oil injection at multiple volume ratios Oct 3, 2017 Issued
Array ( [id] => 16383871 [patent_doc_number] => 10808696 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2020-10-20 [patent_title] => Gear pump or gear motor with shaft connecting member [patent_app_type] => utility [patent_app_number] => 16/338297 [patent_app_country] => US [patent_app_date] => 2017-09-26 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 10 [patent_figures_cnt] => 10 [patent_no_of_words] => 9893 [patent_no_of_claims] => 15 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 233 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16338297 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/338297
Gear pump or gear motor with shaft connecting member Sep 25, 2017 Issued
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