Search

Keith D. Walker

Supervisory Patent Examiner (ID: 17867, Phone: (571)272-3458 , Office: P/1735 )

Most Active Art Unit
1735
Art Unit(s)
1735, 1795, 1726, 1745
Total Applications
568
Issued Applications
152
Pending Applications
56
Abandoned Applications
363

Applications

Application numberTitle of the applicationFiling DateStatus
Array ( [id] => 5165483 [patent_doc_number] => 20070287069 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2007-12-13 [patent_title] => 'Organic solid electrolyte and secondary battery' [patent_app_type] => utility [patent_app_number] => 11/808680 [patent_app_country] => US [patent_app_date] => 2007-06-12 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 3522 [patent_no_of_claims] => 4 [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] => publications/A1/0287/20070287069.pdf [firstpage_image] =>[orig_patent_app_number] => 11808680 [rel_patent_id] =>[rel_patent_doc_number] =>)
11/808680
Organic solid electrolyte and secondary battery Jun 11, 2007 Issued
Array ( [id] => 8642293 [patent_doc_number] => 08367273 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2013-02-05 [patent_title] => 'Method for preparation of the solid oxide fuel cell single cell' [patent_app_type] => utility [patent_app_number] => 12/602391 [patent_app_country] => US [patent_app_date] => 2007-05-31 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 34 [patent_figures_cnt] => 34 [patent_no_of_words] => 4359 [patent_no_of_claims] => 10 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 279 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 12602391 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/602391
Method for preparation of the solid oxide fuel cell single cell May 30, 2007 Issued
Array ( [id] => 5545528 [patent_doc_number] => 20090155405 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2009-06-18 [patent_title] => 'Injection-molding nozzle, in particular hot-runner nozzle, for an injector' [patent_app_type] => utility [patent_app_number] => 12/302340 [patent_app_country] => US [patent_app_date] => 2007-05-23 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 4 [patent_no_of_words] => 1600 [patent_no_of_claims] => 9 [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] => publications/A1/0155/20090155405.pdf [firstpage_image] =>[orig_patent_app_number] => 12302340 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/302340
Injection-molding nozzle, in particular hot-runner nozzle, for an injector May 22, 2007 Abandoned
Array ( [id] => 8005515 [patent_doc_number] => 08084158 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2011-12-27 [patent_title] => 'Battery tab location design and method of construction' [patent_app_type] => utility [patent_app_number] => 11/748286 [patent_app_country] => US [patent_app_date] => 2007-05-14 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 9 [patent_figures_cnt] => 20 [patent_no_of_words] => 9069 [patent_no_of_claims] => 26 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 159 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/08/084/08084158.pdf [firstpage_image] =>[orig_patent_app_number] => 11748286 [rel_patent_id] =>[rel_patent_doc_number] =>)
11/748286
Battery tab location design and method of construction May 13, 2007 Issued
Array ( [id] => 5016049 [patent_doc_number] => 20070259258 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2007-11-08 [patent_title] => 'BATTERY ASSEMBLY WITH TEMPERATURE CONTROL DEVICE' [patent_app_type] => utility [patent_app_number] => 11/743777 [patent_app_country] => US [patent_app_date] => 2007-05-03 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 6 [patent_figures_cnt] => 6 [patent_no_of_words] => 3913 [patent_no_of_claims] => 29 [patent_no_of_ind_claims] => 5 [patent_words_short_claim] => 0 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] => publications/A1/0259/20070259258.pdf [firstpage_image] =>[orig_patent_app_number] => 11743777 [rel_patent_id] =>[rel_patent_doc_number] =>)
11/743777
BATTERY ASSEMBLY WITH TEMPERATURE CONTROL DEVICE May 2, 2007 Abandoned
Array ( [id] => 5206964 [patent_doc_number] => 20070245548 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2007-10-25 [patent_title] => 'Rechargeable battery fabrication method' [patent_app_type] => utility [patent_app_number] => 11/785476 [patent_app_country] => US [patent_app_date] => 2007-04-18 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 7 [patent_figures_cnt] => 7 [patent_no_of_words] => 2374 [patent_no_of_claims] => 5 [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] => publications/A1/0245/20070245548.pdf [firstpage_image] =>[orig_patent_app_number] => 11785476 [rel_patent_id] =>[rel_patent_doc_number] =>)
11/785476
Rechargeable battery fabrication method Apr 17, 2007 Abandoned
Array ( [id] => 4682140 [patent_doc_number] => 20080248366 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2008-10-09 [patent_title] => 'FUEL CELL WITH A COMBINED FUEL SUPPLY UNIT AND POWER GENERATING UNIT STRUCTURE' [patent_app_type] => utility [patent_app_number] => 11/695878 [patent_app_country] => US [patent_app_date] => 2007-04-03 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 6 [patent_figures_cnt] => 6 [patent_no_of_words] => 1255 [patent_no_of_claims] => 6 [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] => publications/A1/0248/20080248366.pdf [firstpage_image] =>[orig_patent_app_number] => 11695878 [rel_patent_id] =>[rel_patent_doc_number] =>)
11/695878
FUEL CELL WITH A COMBINED FUEL SUPPLY UNIT AND POWER GENERATING UNIT STRUCTURE Apr 2, 2007 Abandoned
Array ( [id] => 4988434 [patent_doc_number] => 20070154773 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2007-07-05 [patent_title] => 'Electrochemical cells, a producing process thereof, and electrochemical devices using such electrochemical cells' [patent_app_type] => utility [patent_app_number] => 11/711653 [patent_app_country] => US [patent_app_date] => 2007-02-28 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 12 [patent_figures_cnt] => 12 [patent_no_of_words] => 6228 [patent_no_of_claims] => 8 [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] => publications/A1/0154/20070154773.pdf [firstpage_image] =>[orig_patent_app_number] => 11711653 [rel_patent_id] =>[rel_patent_doc_number] =>)
11/711653
Electrochemical cell having gas flow channels surrounded by solid electrolyte and interconnector Feb 27, 2007 Issued
Array ( [id] => 5002710 [patent_doc_number] => 20070200277 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2007-08-30 [patent_title] => 'FUEL CELL PLATE DESIGN' [patent_app_type] => utility [patent_app_number] => 11/674179 [patent_app_country] => US [patent_app_date] => 2007-02-13 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 6 [patent_figures_cnt] => 6 [patent_no_of_words] => 3596 [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] => publications/A1/0200/20070200277.pdf [firstpage_image] =>[orig_patent_app_number] => 11674179 [rel_patent_id] =>[rel_patent_doc_number] =>)
11/674179
Method of making bipolar plate with coolant channels Feb 12, 2007 Issued
Array ( [id] => 4813220 [patent_doc_number] => 20080193851 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2008-08-14 [patent_title] => 'ALKALINE ELECTROCHEMICAL CELL HAVING IMPROVED GELLED ANODE' [patent_app_type] => utility [patent_app_number] => 11/673377 [patent_app_country] => US [patent_app_date] => 2007-02-09 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 14 [patent_figures_cnt] => 14 [patent_no_of_words] => 15184 [patent_no_of_claims] => 46 [patent_no_of_ind_claims] => 22 [patent_words_short_claim] => 0 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] => publications/A1/0193/20080193851.pdf [firstpage_image] =>[orig_patent_app_number] => 11673377 [rel_patent_id] =>[rel_patent_doc_number] =>)
11/673377
ALKALINE ELECTROCHEMICAL CELL HAVING IMPROVED GELLED ANODE Feb 8, 2007 Abandoned
Array ( [id] => 4954779 [patent_doc_number] => 20080187803 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2008-08-07 [patent_title] => 'Use of Wax Elements as Passive Control Devices in Fuel Cell Power Systems' [patent_app_type] => utility [patent_app_number] => 11/671379 [patent_app_country] => US [patent_app_date] => 2007-02-05 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 5 [patent_figures_cnt] => 5 [patent_no_of_words] => 2747 [patent_no_of_claims] => 14 [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] => publications/A1/0187/20080187803.pdf [firstpage_image] =>[orig_patent_app_number] => 11671379 [rel_patent_id] =>[rel_patent_doc_number] =>)
11/671379
Wax elements as passive control devices in fuel cell power systems Feb 4, 2007 Issued
Array ( [id] => 4765753 [patent_doc_number] => 20080176965 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2008-07-24 [patent_title] => 'Enhancing proton conductivity of proton exchange membranes' [patent_app_type] => utility [patent_app_number] => 11/625876 [patent_app_country] => US [patent_app_date] => 2007-01-23 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 1 [patent_figures_cnt] => 1 [patent_no_of_words] => 2818 [patent_no_of_claims] => 14 [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] => publications/A1/0176/20080176965.pdf [firstpage_image] =>[orig_patent_app_number] => 11625876 [rel_patent_id] =>[rel_patent_doc_number] =>)
11/625876
Enhancing proton conductivity of proton exchange membranes Jan 22, 2007 Abandoned
Array ( [id] => 5403817 [patent_doc_number] => 20090239131 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2009-09-24 [patent_title] => 'Electrochemical energy cell system' [patent_app_type] => utility [patent_app_number] => 11/654380 [patent_app_country] => US [patent_app_date] => 2007-01-16 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 4 [patent_no_of_words] => 3674 [patent_no_of_claims] => 74 [patent_no_of_ind_claims] => 10 [patent_words_short_claim] => 0 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] => publications/A1/0239/20090239131.pdf [firstpage_image] =>[orig_patent_app_number] => 11654380 [rel_patent_id] =>[rel_patent_doc_number] =>)
11/654380
Electrochemical energy cell system Jan 15, 2007 Abandoned
Array ( [id] => 5188278 [patent_doc_number] => 20070166586 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2007-07-19 [patent_title] => 'PASSIVE-PUMPING LIQUID FEED FUEL CELL SYSTEM' [patent_app_type] => utility [patent_app_number] => 11/617933 [patent_app_country] => US [patent_app_date] => 2006-12-29 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 6 [patent_figures_cnt] => 6 [patent_no_of_words] => 9340 [patent_no_of_claims] => 30 [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] => publications/A1/0166/20070166586.pdf [firstpage_image] =>[orig_patent_app_number] => 11617933 [rel_patent_id] =>[rel_patent_doc_number] =>)
11/617933
PASSIVE-PUMPING LIQUID FEED FUEL CELL SYSTEM Dec 28, 2006 Abandoned
Array ( [id] => 5188270 [patent_doc_number] => 20070166578 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2007-07-19 [patent_title] => 'Electric Power Generation System Incorporating A Liquid Feed Fuel Cell' [patent_app_type] => utility [patent_app_number] => 11/617422 [patent_app_country] => US [patent_app_date] => 2006-12-28 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 5 [patent_figures_cnt] => 5 [patent_no_of_words] => 5718 [patent_no_of_claims] => 22 [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] => publications/A1/0166/20070166578.pdf [firstpage_image] =>[orig_patent_app_number] => 11617422 [rel_patent_id] =>[rel_patent_doc_number] =>)
11/617422
Electric Power Generation System Incorporating A Liquid Feed Fuel Cell Dec 27, 2006 Abandoned
Array ( [id] => 4797341 [patent_doc_number] => 20080008927 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2008-01-10 [patent_title] => 'SAFETY KIT FOR SECONDARY BATTERY' [patent_app_type] => utility [patent_app_number] => 11/617279 [patent_app_country] => US [patent_app_date] => 2006-12-28 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 4 [patent_no_of_words] => 4984 [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] => publications/A1/0008/20080008927.pdf [firstpage_image] =>[orig_patent_app_number] => 11617279 [rel_patent_id] =>[rel_patent_doc_number] =>)
11/617279
Safety kit for secondary battery Dec 27, 2006 Issued
Array ( [id] => 4965104 [patent_doc_number] => 20080107924 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2008-05-08 [patent_title] => 'FUEL CELL SYSTEM WITH REFILL ALARM' [patent_app_type] => utility [patent_app_number] => 11/612478 [patent_app_country] => US [patent_app_date] => 2006-12-19 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 10 [patent_figures_cnt] => 10 [patent_no_of_words] => 2656 [patent_no_of_claims] => 21 [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] => publications/A1/0107/20080107924.pdf [firstpage_image] =>[orig_patent_app_number] => 11612478 [rel_patent_id] =>[rel_patent_doc_number] =>)
11/612478
FUEL CELL SYSTEM WITH REFILL ALARM Dec 18, 2006 Abandoned
Array ( [id] => 6232964 [patent_doc_number] => 20100185264 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2010-07-22 [patent_title] => 'Method For Coating A Cathode Active Material With A Metal Oxide For Incorporation Into A Lithium Electrochemical Cell' [patent_app_type] => utility [patent_app_number] => 11/611904 [patent_app_country] => US [patent_app_date] => 2006-12-18 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 3 [patent_no_of_words] => 4854 [patent_no_of_claims] => 19 [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] => publications/A1/0185/20100185264.pdf [firstpage_image] =>[orig_patent_app_number] => 11611904 [rel_patent_id] =>[rel_patent_doc_number] =>)
11/611904
Method For Coating A Cathode Active Material With A Metal Oxide For Incorporation Into A Lithium Electrochemical Cell Dec 17, 2006 Abandoned
Array ( [id] => 5119732 [patent_doc_number] => 20070141446 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2007-06-21 [patent_title] => 'Fuel cell gas diffusion articles' [patent_app_type] => utility [patent_app_number] => 11/639376 [patent_app_country] => US [patent_app_date] => 2006-12-14 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 2 [patent_figures_cnt] => 2 [patent_no_of_words] => 4604 [patent_no_of_claims] => 33 [patent_no_of_ind_claims] => 5 [patent_words_short_claim] => 0 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] => publications/A1/0141/20070141446.pdf [firstpage_image] =>[orig_patent_app_number] => 11639376 [rel_patent_id] =>[rel_patent_doc_number] =>)
11/639376
Fuel cell gas diffusion articles Dec 13, 2006 Abandoned
Array ( [id] => 6435421 [patent_doc_number] => 20100143825 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2010-06-10 [patent_title] => 'METALLIC SEPARATOR FOR FUEL CELL AND METHOD OF FABRICATING THE SAME' [patent_app_type] => utility [patent_app_number] => 11/996691 [patent_app_country] => US [patent_app_date] => 2006-12-07 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 6 [patent_figures_cnt] => 6 [patent_no_of_words] => 3809 [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] => publications/A1/0143/20100143825.pdf [firstpage_image] =>[orig_patent_app_number] => 11996691 [rel_patent_id] =>[rel_patent_doc_number] =>)
11/996691
Method of fabricating a chromium nitride coated separator Dec 6, 2006 Issued
Menu