Search

David J. Walczak

Examiner (ID: 16217, Phone: (571)272-4895 , Office: P/3754 )

Most Active Art Unit
3754
Art Unit(s)
2403, 3751, 2899, 3105, 3754, 2832
Total Applications
4701
Issued Applications
3668
Pending Applications
254
Abandoned Applications
823

Applications

Application numberTitle of the applicationFiling DateStatus
Array ( [id] => 14717025 [patent_doc_number] => 20190249576 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2019-08-15 [patent_title] => CONNECTING ROD [patent_app_type] => utility [patent_app_number] => 16/256379 [patent_app_country] => US [patent_app_date] => 2019-01-24 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 3957 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -4 [patent_words_short_claim] => 267 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16256379 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/256379
Connecting rod Jan 23, 2019 Issued
Array ( [id] => 14717025 [patent_doc_number] => 20190249576 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2019-08-15 [patent_title] => CONNECTING ROD [patent_app_type] => utility [patent_app_number] => 16/256379 [patent_app_country] => US [patent_app_date] => 2019-01-24 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 3957 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -4 [patent_words_short_claim] => 267 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16256379 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/256379
Connecting rod Jan 23, 2019 Issued
Array ( [id] => 16629434 [patent_doc_number] => 20210048087 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2021-02-18 [patent_title] => BALANCER DEVICE FOR INTERNAL COMBUSTION ENGINES [patent_app_type] => utility [patent_app_number] => 16/977952 [patent_app_country] => US [patent_app_date] => 2019-01-15 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 9233 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -10 [patent_words_short_claim] => 180 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16977952 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/977952
Balancer device for internal combustion engines Jan 14, 2019 Issued
Array ( [id] => 16231199 [patent_doc_number] => 10738742 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2020-08-11 [patent_title] => Method and system for engine water injection [patent_app_type] => utility [patent_app_number] => 16/214931 [patent_app_country] => US [patent_app_date] => 2018-12-10 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 5 [patent_figures_cnt] => 6 [patent_no_of_words] => 15394 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 59 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16214931 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/214931
Method and system for engine water injection Dec 9, 2018 Issued
Array ( [id] => 14469605 [patent_doc_number] => 20190186445 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2019-06-20 [patent_title] => BLOW-BY GAS PROCESSING DEVICE, AND ENGINE [patent_app_type] => utility [patent_app_number] => 16/209460 [patent_app_country] => US [patent_app_date] => 2018-12-04 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 3467 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -2 [patent_words_short_claim] => 254 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16209460 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/209460
BLOW-BY GAS PROCESSING DEVICE, AND ENGINE Dec 3, 2018 Abandoned
Array ( [id] => 15994931 [patent_doc_number] => 20200173336 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2020-06-04 [patent_title] => COOLING FAN MODULE [patent_app_type] => utility [patent_app_number] => 16/208670 [patent_app_country] => US [patent_app_date] => 2018-12-04 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 3129 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 80 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16208670 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/208670
Cooling fan module Dec 3, 2018 Issued
Array ( [id] => 16342718 [patent_doc_number] => 20200307368 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2020-10-01 [patent_title] => METHOD FOR CONTROLLING AN INTERNAL COMBUSTION ENGINE OF A HYBRID POWERTRAIN [patent_app_type] => utility [patent_app_number] => 16/768089 [patent_app_country] => US [patent_app_date] => 2018-11-30 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 2752 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [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] => 16768089 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/768089
Method for controlling an internal combustion engine of a hybrid powertrain Nov 29, 2018 Issued
Array ( [id] => 16029491 [patent_doc_number] => 10677156 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2020-06-09 [patent_title] => Variable compression ratio apparatus [patent_app_type] => utility [patent_app_number] => 16/205972 [patent_app_country] => US [patent_app_date] => 2018-11-30 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 10 [patent_figures_cnt] => 10 [patent_no_of_words] => 7378 [patent_no_of_claims] => 13 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 465 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16205972 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/205972
Variable compression ratio apparatus Nov 29, 2018 Issued
Array ( [id] => 15651113 [patent_doc_number] => 20200088086 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2020-03-19 [patent_title] => ENGINE COOLING SYSTEM [patent_app_type] => utility [patent_app_number] => 16/201007 [patent_app_country] => US [patent_app_date] => 2018-11-27 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 5112 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -10 [patent_words_short_claim] => 138 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16201007 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/201007
ENGINE COOLING SYSTEM Nov 26, 2018 Abandoned
Array ( [id] => 14344007 [patent_doc_number] => 20190153976 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2019-05-23 [patent_title] => PISTON, IN PARTICULAR FOR AN HPDI DIESEL/GAS INTERNAL COMBUSTION ENGINE [patent_app_type] => utility [patent_app_number] => 16/196210 [patent_app_country] => US [patent_app_date] => 2018-11-20 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 6193 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 64 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16196210 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/196210
Piston, in particular for an HPDI diesel/gas internal combustion engine Nov 19, 2018 Issued
Array ( [id] => 14073747 [patent_doc_number] => 20190085761 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2019-03-21 [patent_title] => POWER UNIT [patent_app_type] => utility [patent_app_number] => 16/193491 [patent_app_country] => US [patent_app_date] => 2018-11-16 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 3250 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -3 [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] => 16193491 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/193491
Power unit Nov 15, 2018 Issued
Array ( [id] => 15728377 [patent_doc_number] => 10612615 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2020-04-07 [patent_title] => Engine reciprocative rotating mechanism and method for manufacturing the same [patent_app_type] => utility [patent_app_number] => 16/165782 [patent_app_country] => US [patent_app_date] => 2018-10-19 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 9 [patent_figures_cnt] => 12 [patent_no_of_words] => 11059 [patent_no_of_claims] => 7 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 302 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16165782 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/165782
Engine reciprocative rotating mechanism and method for manufacturing the same Oct 18, 2018 Issued
Array ( [id] => 16534028 [patent_doc_number] => 10876618 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2020-12-29 [patent_title] => Device and method for activating a synchronous machine arranged in a vehicle [patent_app_type] => utility [patent_app_number] => 16/162578 [patent_app_country] => US [patent_app_date] => 2018-10-17 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 4 [patent_no_of_words] => 6396 [patent_no_of_claims] => 10 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 177 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16162578 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/162578
Device and method for activating a synchronous machine arranged in a vehicle Oct 16, 2018 Issued
Array ( [id] => 16231128 [patent_doc_number] => 10738670 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2020-08-11 [patent_title] => Utility vehicle [patent_app_type] => utility [patent_app_number] => 16/157524 [patent_app_country] => US [patent_app_date] => 2018-10-11 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 7 [patent_figures_cnt] => 7 [patent_no_of_words] => 6004 [patent_no_of_claims] => 7 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 181 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16157524 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/157524
Utility vehicle Oct 10, 2018 Issued
Array ( [id] => 14701681 [patent_doc_number] => 10378578 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2019-08-13 [patent_title] => Internal combustion engine using yoke assemblies in unopposed cylinder units [patent_app_type] => utility [patent_app_number] => 16/148663 [patent_app_country] => US [patent_app_date] => 2018-10-01 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 11 [patent_figures_cnt] => 11 [patent_no_of_words] => 6648 [patent_no_of_claims] => 12 [patent_no_of_ind_claims] => 3 [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] => 16148663 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/148663
Internal combustion engine using yoke assemblies in unopposed cylinder units Sep 30, 2018 Issued
Array ( [id] => 14278919 [patent_doc_number] => 20190136744 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2019-05-09 [patent_title] => ENGINE COOLANT PUMP APPARATUS WITH THREADED CONNECTIONS [patent_app_type] => utility [patent_app_number] => 16/127502 [patent_app_country] => US [patent_app_date] => 2018-09-11 [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] => -15 [patent_words_short_claim] => 141 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16127502 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/127502
ENGINE COOLANT PUMP APPARATUS WITH THREADED CONNECTIONS Sep 10, 2018 Abandoned
Array ( [id] => 14073705 [patent_doc_number] => 20190085740 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2019-03-21 [patent_title] => INTERNAL COMBUSTION ENGINE [patent_app_type] => utility [patent_app_number] => 16/125186 [patent_app_country] => US [patent_app_date] => 2018-09-07 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 16223 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -8 [patent_words_short_claim] => 159 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16125186 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/125186
INTERNAL COMBUSTION ENGINE Sep 6, 2018 Abandoned
Array ( [id] => 15591177 [patent_doc_number] => 20200072123 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2020-03-05 [patent_title] => FUEL GELLING PREVENTION USING ENGINE AUTO START FUNCTIONALITY [patent_app_type] => utility [patent_app_number] => 16/119310 [patent_app_country] => US [patent_app_date] => 2018-08-31 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 4513 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 33 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16119310 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/119310
Fuel gelling prevention using engine auto start functionality Aug 30, 2018 Issued
Array ( [id] => 13988415 [patent_doc_number] => 20190063365 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2019-02-28 [patent_title] => PISTON WITH BROAD OVATE GALLERY [patent_app_type] => utility [patent_app_number] => 16/109328 [patent_app_country] => US [patent_app_date] => 2018-08-22 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 2092 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -18 [patent_words_short_claim] => 131 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16109328 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/109328
Piston with broad ovate gallery Aug 21, 2018 Issued
Array ( [id] => 17307869 [patent_doc_number] => 11208967 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2021-12-28 [patent_title] => Method for operating an internal combustion engine having an injection system, injection system designed to carry out a method of this type, and internal combustion engine having an injection system of this type [patent_app_type] => utility [patent_app_number] => 16/635397 [patent_app_country] => US [patent_app_date] => 2018-08-07 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 6 [patent_figures_cnt] => 7 [patent_no_of_words] => 13171 [patent_no_of_claims] => 13 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 143 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16635397 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/635397
Method for operating an internal combustion engine having an injection system, injection system designed to carry out a method of this type, and internal combustion engine having an injection system of this type Aug 6, 2018 Issued
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