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] => 5545763 [patent_doc_number] => 20090155640 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2009-06-18 [patent_title] => 'SYSTEM AND PROCESS FOR GENERATING ELECTRICAL POWER' [patent_app_type] => utility [patent_app_number] => 12/335370 [patent_app_country] => US [patent_app_date] => 2008-12-15 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 5 [patent_figures_cnt] => 5 [patent_no_of_words] => 35349 [patent_no_of_claims] => 12 [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/A1/0155/20090155640.pdf [firstpage_image] =>[orig_patent_app_number] => 12335370 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/335370
SYSTEM AND PROCESS FOR GENERATING ELECTRICAL POWER Dec 14, 2008 Abandoned
Array ( [id] => 5545772 [patent_doc_number] => 20090155649 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2009-06-18 [patent_title] => 'SYSTEM AND PROCESS FOR GENERATING ELECTRICAL POWER' [patent_app_type] => utility [patent_app_number] => 12/335375 [patent_app_country] => US [patent_app_date] => 2008-12-15 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 5 [patent_figures_cnt] => 5 [patent_no_of_words] => 20313 [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] => publications/A1/0155/20090155649.pdf [firstpage_image] =>[orig_patent_app_number] => 12335375 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/335375
SYSTEM AND PROCESS FOR GENERATING ELECTRICAL POWER Dec 14, 2008 Abandoned
Array ( [id] => 5545761 [patent_doc_number] => 20090155638 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2009-06-18 [patent_title] => 'SYSTEM AND PROCESS FOR GENERATING ELECTRICAL POWER' [patent_app_type] => utility [patent_app_number] => 12/335382 [patent_app_country] => US [patent_app_date] => 2008-12-15 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 7 [patent_figures_cnt] => 7 [patent_no_of_words] => 38224 [patent_no_of_claims] => 15 [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/A1/0155/20090155638.pdf [firstpage_image] =>[orig_patent_app_number] => 12335382 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/335382
SYSTEM AND PROCESS FOR GENERATING ELECTRICAL POWER Dec 14, 2008 Abandoned
Array ( [id] => 5575286 [patent_doc_number] => 20090142648 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2009-06-04 [patent_title] => 'Thin film glass composite catalyst electrode' [patent_app_type] => utility [patent_app_number] => 12/288587 [patent_app_country] => US [patent_app_date] => 2008-10-22 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 14 [patent_figures_cnt] => 14 [patent_no_of_words] => 5375 [patent_no_of_claims] => 26 [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/A1/0142/20090142648.pdf [firstpage_image] =>[orig_patent_app_number] => 12288587 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/288587
Thin film glass composite catalyst electrode Oct 21, 2008 Abandoned
Array ( [id] => 5514608 [patent_doc_number] => 20090214915 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2009-08-27 [patent_title] => 'Fuel cell system using evaporative cooling and method of cooling fuel cell system' [patent_app_type] => utility [patent_app_number] => 12/286881 [patent_app_country] => US [patent_app_date] => 2008-10-01 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 14 [patent_figures_cnt] => 14 [patent_no_of_words] => 10877 [patent_no_of_claims] => 16 [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/A1/0214/20090214915.pdf [firstpage_image] =>[orig_patent_app_number] => 12286881 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/286881
Fuel cell system using evaporative cooling method Sep 30, 2008 Issued
Array ( [id] => 23152 [patent_doc_number] => 07794889 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2010-09-14 [patent_title] => 'Method for detecting abnormality in fuel cell' [patent_app_type] => utility [patent_app_number] => 12/242226 [patent_app_country] => US [patent_app_date] => 2008-09-30 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 7 [patent_figures_cnt] => 9 [patent_no_of_words] => 8314 [patent_no_of_claims] => 12 [patent_no_of_ind_claims] => 6 [patent_words_short_claim] => 174 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/07/794/07794889.pdf [firstpage_image] =>[orig_patent_app_number] => 12242226 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/242226
Method for detecting abnormality in fuel cell Sep 29, 2008 Issued
Array ( [id] => 5344728 [patent_doc_number] => 20090000089 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2009-01-01 [patent_title] => 'Apparatus for producing a grid for a battery plate, and method of producing the same' [patent_app_type] => utility [patent_app_number] => 12/229812 [patent_app_country] => US [patent_app_date] => 2008-08-27 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 7 [patent_figures_cnt] => 7 [patent_no_of_words] => 7015 [patent_no_of_claims] => 3 [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/A1/0000/20090000089.pdf [firstpage_image] =>[orig_patent_app_number] => 12229812 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/229812
Apparatus for producing a battery plate expanded grid Aug 26, 2008 Issued
Array ( [id] => 6456690 [patent_doc_number] => 20100006191 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2010-01-14 [patent_title] => 'HIGH STRENGTH Be/Cu ALLOYS WITH IMPROVED ELECTRICAL CONDUCTIVITY' [patent_app_type] => utility [patent_app_number] => 12/170029 [patent_app_country] => US [patent_app_date] => 2008-07-09 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 1 [patent_figures_cnt] => 1 [patent_no_of_words] => 7149 [patent_no_of_claims] => 22 [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/A1/0006/20100006191.pdf [firstpage_image] =>[orig_patent_app_number] => 12170029 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/170029
HIGH STRENGTH Be/Cu ALLOYS WITH IMPROVED ELECTRICAL CONDUCTIVITY Jul 8, 2008 Abandoned
Array ( [id] => 8533108 [patent_doc_number] => 08309261 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2012-11-13 [patent_title] => 'Fuel cell with control unit for recirculating fuel' [patent_app_type] => utility [patent_app_number] => 12/666489 [patent_app_country] => US [patent_app_date] => 2008-06-30 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 5 [patent_no_of_words] => 4558 [patent_no_of_claims] => 2 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 192 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 12666489 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/666489
Fuel cell with control unit for recirculating fuel Jun 29, 2008 Issued
Array ( [id] => 8398119 [patent_doc_number] => 08268497 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2012-09-18 [patent_title] => 'Fuel cell with fuel-stoichiometric ratio control portion' [patent_app_type] => utility [patent_app_number] => 12/137951 [patent_app_country] => US [patent_app_date] => 2008-06-12 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 7 [patent_figures_cnt] => 7 [patent_no_of_words] => 10307 [patent_no_of_claims] => 11 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 271 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 12137951 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/137951
Fuel cell with fuel-stoichiometric ratio control portion Jun 11, 2008 Issued
Array ( [id] => 5552158 [patent_doc_number] => 20090286144 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2009-11-19 [patent_title] => 'Battery case for carrying rechargeable battery' [patent_app_type] => utility [patent_app_number] => 12/153289 [patent_app_country] => US [patent_app_date] => 2008-05-16 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 5 [patent_figures_cnt] => 5 [patent_no_of_words] => 1378 [patent_no_of_claims] => 8 [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/A1/0286/20090286144.pdf [firstpage_image] =>[orig_patent_app_number] => 12153289 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/153289
Battery case for carrying rechargeable battery May 15, 2008 Abandoned
Array ( [id] => 8457759 [patent_doc_number] => 08293424 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2012-10-23 [patent_title] => 'Flow field unit for a fuel cell stack' [patent_app_type] => utility [patent_app_number] => 12/599188 [patent_app_country] => US [patent_app_date] => 2008-05-13 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 5 [patent_figures_cnt] => 7 [patent_no_of_words] => 3795 [patent_no_of_claims] => 11 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 128 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 12599188 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/599188
Flow field unit for a fuel cell stack May 12, 2008 Issued
Array ( [id] => 4959971 [patent_doc_number] => 20080274396 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2008-11-06 [patent_title] => 'Battery Vent' [patent_app_type] => utility [patent_app_number] => 12/113490 [patent_app_country] => US [patent_app_date] => 2008-05-01 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 10 [patent_figures_cnt] => 10 [patent_no_of_words] => 5944 [patent_no_of_claims] => 17 [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/A1/0274/20080274396.pdf [firstpage_image] =>[orig_patent_app_number] => 12113490 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/113490
Battery Vent Apr 30, 2008 Abandoned
Array ( [id] => 5569629 [patent_doc_number] => 20090253007 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2009-10-08 [patent_title] => 'Method and apparatus for anode oxidation prevention and cooling of a solid-oxide fuel cell stack' [patent_app_type] => utility [patent_app_number] => 12/080588 [patent_app_country] => US [patent_app_date] => 2008-04-04 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 3 [patent_no_of_words] => 3500 [patent_no_of_claims] => 21 [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/A1/0253/20090253007.pdf [firstpage_image] =>[orig_patent_app_number] => 12080588 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/080588
Method and apparatus for anode oxidation prevention and cooling of a solid-oxide fuel cell stack Apr 3, 2008 Abandoned
Array ( [id] => 4719096 [patent_doc_number] => 20080241618 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2008-10-02 [patent_title] => 'FUEL CELL' [patent_app_type] => utility [patent_app_number] => 12/054889 [patent_app_country] => US [patent_app_date] => 2008-03-25 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 12 [patent_figures_cnt] => 12 [patent_no_of_words] => 11945 [patent_no_of_claims] => 17 [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/A1/0241/20080241618.pdf [firstpage_image] =>[orig_patent_app_number] => 12054889 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/054889
FUEL CELL Mar 24, 2008 Abandoned
Array ( [id] => 5400755 [patent_doc_number] => 20090236068 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2009-09-24 [patent_title] => 'STRIP CASTING APPARATUS FOR RAPID SET AND CHANGE OF CASTING ROLLS' [patent_app_type] => utility [patent_app_number] => 12/050987 [patent_app_country] => US [patent_app_date] => 2008-03-19 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 16 [patent_figures_cnt] => 16 [patent_no_of_words] => 11297 [patent_no_of_claims] => 66 [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/A1/0236/20090236068.pdf [firstpage_image] =>[orig_patent_app_number] => 12050987 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/050987
STRIP CASTING APPARATUS FOR RAPID SET AND CHANGE OF CASTING ROLLS Mar 18, 2008 Abandoned
Array ( [id] => 4873021 [patent_doc_number] => 20080199755 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2008-08-21 [patent_title] => 'CONDUCTIVE POLYMERS' [patent_app_type] => utility [patent_app_number] => 12/049590 [patent_app_country] => US [patent_app_date] => 2008-03-17 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 4721 [patent_no_of_claims] => 36 [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/A1/0199/20080199755.pdf [firstpage_image] =>[orig_patent_app_number] => 12049590 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/049590
CONDUCTIVE POLYMERS Mar 16, 2008 Abandoned
Array ( [id] => 5296285 [patent_doc_number] => 20090011211 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2009-01-08 [patent_title] => 'Metal matrix composite bodies, and methods for making same' [patent_app_type] => utility [patent_app_number] => 12/074703 [patent_app_country] => US [patent_app_date] => 2008-03-05 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 15 [patent_figures_cnt] => 15 [patent_no_of_words] => 7600 [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] => publications/A1/0011/20090011211.pdf [firstpage_image] =>[orig_patent_app_number] => 12074703 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/074703
Metal matrix composite bodies, and methods for making same Mar 4, 2008 Abandoned
Array ( [id] => 6313203 [patent_doc_number] => 20100111753 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2010-05-06 [patent_title] => 'Pb-FREE COPPER-BASED SINTERED SLIDING MATERIAL' [patent_app_type] => utility [patent_app_number] => 12/527003 [patent_app_country] => US [patent_app_date] => 2008-02-13 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 3 [patent_no_of_words] => 3687 [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/A1/0111/20100111753.pdf [firstpage_image] =>[orig_patent_app_number] => 12527003 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/527003
Pb-FREE COPPER-BASED SINTERED SLIDING MATERIAL Feb 12, 2008 Abandoned
Array ( [id] => 4759245 [patent_doc_number] => 20080311471 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2008-12-18 [patent_title] => 'Non-aqueous electrolyte secondary battery and production method thereof' [patent_app_type] => utility [patent_app_number] => 12/010343 [patent_app_country] => US [patent_app_date] => 2008-01-24 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 9 [patent_figures_cnt] => 9 [patent_no_of_words] => 10281 [patent_no_of_claims] => 10 [patent_no_of_ind_claims] => 6 [patent_words_short_claim] => 0 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] => publications/A1/0311/20080311471.pdf [firstpage_image] =>[orig_patent_app_number] => 12010343 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/010343
Non-aqueous electrolyte secondary battery and production method thereof Jan 23, 2008 Abandoned
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