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] => 11699484 [patent_doc_number] => 09689390 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2017-06-27 [patent_title] => 'Fluid pump with shaft driven pumping element' [patent_app_type] => utility [patent_app_number] => 14/187482 [patent_app_country] => US [patent_app_date] => 2014-02-24 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 2 [patent_figures_cnt] => 4 [patent_no_of_words] => 2649 [patent_no_of_claims] => 11 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 274 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 14187482 [rel_patent_id] =>[rel_patent_doc_number] =>)
14/187482
Fluid pump with shaft driven pumping element Feb 23, 2014 Issued
Array ( [id] => 9670284 [patent_doc_number] => 20140234148 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2014-08-21 [patent_title] => 'Scroll Compressor' [patent_app_type] => utility [patent_app_number] => 14/177922 [patent_app_country] => US [patent_app_date] => 2014-02-11 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 11 [patent_figures_cnt] => 11 [patent_no_of_words] => 8993 [patent_no_of_claims] => 6 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 0 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 14177922 [rel_patent_id] =>[rel_patent_doc_number] =>)
14/177922
Scroll compressor with intermittent communication between back pressure chamber and compression chambers Feb 10, 2014 Issued
Array ( [id] => 12247987 [patent_doc_number] => 09920758 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2018-03-20 [patent_title] => 'Eccentric screw pump with overpressure protection' [patent_app_type] => utility [patent_app_number] => 14/769351 [patent_app_country] => US [patent_app_date] => 2014-02-06 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 1 [patent_figures_cnt] => 2 [patent_no_of_words] => 3731 [patent_no_of_claims] => 5 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 254 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 14769351 [rel_patent_id] =>[rel_patent_doc_number] =>)
14/769351
Eccentric screw pump with overpressure protection Feb 5, 2014 Issued
Array ( [id] => 9641741 [patent_doc_number] => 20140219853 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2014-08-07 [patent_title] => 'Vane for a Vane Cell Device, as Well as a Vane Cell Device' [patent_app_type] => utility [patent_app_number] => 14/168641 [patent_app_country] => US [patent_app_date] => 2014-01-30 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 3 [patent_no_of_words] => 4060 [patent_no_of_claims] => 11 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 0 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 14168641 [rel_patent_id] =>[rel_patent_doc_number] =>)
14/168641
Vane with offset walls and fluid passages used in a vane cell device Jan 29, 2014 Issued
Array ( [id] => 10784981 [patent_doc_number] => 20160131137 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2016-05-12 [patent_title] => 'ROTARY COMPRESSOR' [patent_app_type] => utility [patent_app_number] => 14/897075 [patent_app_country] => US [patent_app_date] => 2014-01-29 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 13 [patent_figures_cnt] => 13 [patent_no_of_words] => 7893 [patent_no_of_claims] => 2 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 0 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 14897075 [rel_patent_id] =>[rel_patent_doc_number] =>)
14/897075
Lubrication of a rotary compressor Jan 28, 2014 Issued
Array ( [id] => 12172652 [patent_doc_number] => 09890785 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2018-02-13 [patent_title] => 'Rotary compressor with silicon dioxide' [patent_app_type] => utility [patent_app_number] => 14/894317 [patent_app_country] => US [patent_app_date] => 2014-01-29 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 2 [patent_figures_cnt] => 2 [patent_no_of_words] => 4343 [patent_no_of_claims] => 3 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 247 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 14894317 [rel_patent_id] =>[rel_patent_doc_number] =>)
14/894317
Rotary compressor with silicon dioxide Jan 28, 2014 Issued
Array ( [id] => 9596605 [patent_doc_number] => 20140193285 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2014-07-10 [patent_title] => 'OPTIMIZED HELIX ANGLE ROTORS FOR ROOTS-STYLE SUPERCHARGER' [patent_app_type] => utility [patent_app_number] => 14/158163 [patent_app_country] => US [patent_app_date] => 2014-01-17 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 9 [patent_figures_cnt] => 9 [patent_no_of_words] => 6955 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 0 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 14158163 [rel_patent_id] =>[rel_patent_doc_number] =>)
14/158163
OPTIMIZED HELIX ANGLE ROTORS FOR ROOTS-STYLE SUPERCHARGER Jan 16, 2014 Abandoned
Array ( [id] => 9593769 [patent_doc_number] => 20140190446 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2014-07-10 [patent_title] => 'FIXED VANE ROTARY ABUTMENT ENGINE' [patent_app_type] => utility [patent_app_number] => 14/152163 [patent_app_country] => US [patent_app_date] => 2014-01-10 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 6 [patent_figures_cnt] => 6 [patent_no_of_words] => 3551 [patent_no_of_claims] => 14 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 0 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 14152163 [rel_patent_id] =>[rel_patent_doc_number] =>)
14/152163
FIXED VANE ROTARY ABUTMENT ENGINE Jan 9, 2014 Abandoned
Array ( [id] => 9564830 [patent_doc_number] => 20140182542 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2014-07-03 [patent_title] => 'Circulating Piston Engine' [patent_app_type] => utility [patent_app_number] => 14/145546 [patent_app_country] => US [patent_app_date] => 2013-12-31 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 5 [patent_figures_cnt] => 5 [patent_no_of_words] => 3787 [patent_no_of_claims] => 18 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 0 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 14145546 [rel_patent_id] =>[rel_patent_doc_number] =>)
14/145546
Circulating Piston Engine Dec 30, 2013 Abandoned
Array ( [id] => 11522285 [patent_doc_number] => 09605674 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2017-03-28 [patent_title] => 'Vacuum scroll pump having pressure-balanced orbiting plate scroll' [patent_app_type] => utility [patent_app_number] => 14/140591 [patent_app_country] => US [patent_app_date] => 2013-12-26 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 8 [patent_figures_cnt] => 8 [patent_no_of_words] => 5675 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 405 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 14140591 [rel_patent_id] =>[rel_patent_doc_number] =>)
14/140591
Vacuum scroll pump having pressure-balanced orbiting plate scroll Dec 25, 2013 Issued
Array ( [id] => 11357953 [patent_doc_number] => 09534599 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2017-01-03 [patent_title] => 'Scroll compressor having a first and second oldham couplings' [patent_app_type] => utility [patent_app_number] => 14/138258 [patent_app_country] => US [patent_app_date] => 2013-12-23 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 10 [patent_no_of_words] => 4478 [patent_no_of_claims] => 13 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 291 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 14138258 [rel_patent_id] =>[rel_patent_doc_number] =>)
14/138258
Scroll compressor having a first and second oldham couplings Dec 22, 2013 Issued
Array ( [id] => 12099787 [patent_doc_number] => 09856877 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2018-01-02 [patent_title] => 'Vacuum pump having a disconnectable drive coupling' [patent_app_type] => utility [patent_app_number] => 14/650595 [patent_app_country] => US [patent_app_date] => 2013-12-19 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 5 [patent_figures_cnt] => 13 [patent_no_of_words] => 4905 [patent_no_of_claims] => 15 [patent_no_of_ind_claims] => 1 [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] => 14650595 [rel_patent_id] =>[rel_patent_doc_number] =>)
14/650595
Vacuum pump having a disconnectable drive coupling Dec 18, 2013 Issued
Array ( [id] => 10636249 [patent_doc_number] => 09353743 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2016-05-31 [patent_title] => 'Fixed and variable pumps with parallel flow' [patent_app_type] => utility [patent_app_number] => 14/132773 [patent_app_country] => US [patent_app_date] => 2013-12-18 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 8 [patent_figures_cnt] => 20 [patent_no_of_words] => 6318 [patent_no_of_claims] => 11 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 246 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 14132773 [rel_patent_id] =>[rel_patent_doc_number] =>)
14/132773
Fixed and variable pumps with parallel flow Dec 17, 2013 Issued
Array ( [id] => 10643150 [patent_doc_number] => 09360010 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2016-06-07 [patent_title] => 'First and second pumps in a common housing with parallel flow' [patent_app_type] => utility [patent_app_number] => 14/132785 [patent_app_country] => US [patent_app_date] => 2013-12-18 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 8 [patent_figures_cnt] => 20 [patent_no_of_words] => 6627 [patent_no_of_claims] => 16 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 264 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 14132785 [rel_patent_id] =>[rel_patent_doc_number] =>)
14/132785
First and second pumps in a common housing with parallel flow Dec 17, 2013 Issued
Array ( [id] => 10282548 [patent_doc_number] => 20150167546 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2015-06-18 [patent_title] => 'ROTARY ENGINE WITH ROTOR LAND' [patent_app_type] => utility [patent_app_number] => 14/108522 [patent_app_country] => US [patent_app_date] => 2013-12-17 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 9 [patent_figures_cnt] => 9 [patent_no_of_words] => 4458 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 0 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 14108522 [rel_patent_id] =>[rel_patent_doc_number] =>)
14/108522
Rotary engine with rotor land Dec 16, 2013 Issued
Array ( [id] => 10437932 [patent_doc_number] => 20150322944 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2015-11-12 [patent_title] => 'VARIABLE DISPLACEMENT VANE PUMP AND METHOD OF REGULATING THE DISPLACEMENT THEREOF' [patent_app_type] => utility [patent_app_number] => 14/652927 [patent_app_country] => US [patent_app_date] => 2013-12-13 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 6 [patent_figures_cnt] => 6 [patent_no_of_words] => 3852 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 0 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 14652927 [rel_patent_id] =>[rel_patent_doc_number] =>)
14/652927
VARIABLE DISPLACEMENT VANE PUMP AND METHOD OF REGULATING THE DISPLACEMENT THEREOF Dec 12, 2013 Abandoned
Array ( [id] => 12929539 [patent_doc_number] => 09828997 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2017-11-28 [patent_title] => Scroll compressor with a resonator [patent_app_type] => utility [patent_app_number] => 14/762872 [patent_app_country] => US [patent_app_date] => 2013-12-12 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 6 [patent_figures_cnt] => 7 [patent_no_of_words] => 8601 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 240 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 14762872 [rel_patent_id] =>[rel_patent_doc_number] =>)
14/762872
Scroll compressor with a resonator Dec 11, 2013 Issued
Array ( [id] => 10925688 [patent_doc_number] => 20140328709 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2014-11-06 [patent_title] => 'HYDRAULIC MACHINE WITH VANE RETAINING MECHANISM' [patent_app_type] => utility [patent_app_number] => 14/095654 [patent_app_country] => US [patent_app_date] => 2013-12-03 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 38 [patent_figures_cnt] => 38 [patent_no_of_words] => 17067 [patent_no_of_claims] => 1 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 0 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 14095654 [rel_patent_id] =>[rel_patent_doc_number] =>)
14/095654
Hydraulic machine with vane retaining mechanism Dec 2, 2013 Issued
Array ( [id] => 10650014 [patent_doc_number] => 09366255 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2016-06-14 [patent_title] => 'Scroll vacuum pump having external axial adjustment mechanism' [patent_app_type] => utility [patent_app_number] => 14/094683 [patent_app_country] => US [patent_app_date] => 2013-12-02 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 5 [patent_no_of_words] => 6711 [patent_no_of_claims] => 18 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 230 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 14094683 [rel_patent_id] =>[rel_patent_doc_number] =>)
14/094683
Scroll vacuum pump having external axial adjustment mechanism Dec 1, 2013 Issued
Array ( [id] => 9510831 [patent_doc_number] => 20140147322 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2014-05-29 [patent_title] => 'VARIABLE DISPLACEMENT PUMP' [patent_app_type] => utility [patent_app_number] => 14/073347 [patent_app_country] => US [patent_app_date] => 2013-11-06 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 8 [patent_figures_cnt] => 8 [patent_no_of_words] => 10664 [patent_no_of_claims] => 9 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 0 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 14073347 [rel_patent_id] =>[rel_patent_doc_number] =>)
14/073347
Variable vane displacement pump utilizing a control valve and a switching valve Nov 5, 2013 Issued
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