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] => 6720568 [patent_doc_number] => 20030054256 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2003-03-20 [patent_title] => 'Totally solid type polymer lithium ion secondary battery and manufacturing method of the same' [patent_app_type] => new [patent_app_number] => 10/202628 [patent_app_country] => US [patent_app_date] => 2002-07-25 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 10 [patent_figures_cnt] => 10 [patent_no_of_words] => 8487 [patent_no_of_claims] => 15 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 86 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] => publications/A1/0054/20030054256.pdf [firstpage_image] =>[orig_patent_app_number] => 10202628 [rel_patent_id] =>[rel_patent_doc_number] =>)
10/202628
Totally solid type polymer lithium ion secondary battery and manufacturing method of the same Jul 24, 2002 Abandoned
Array ( [id] => 581711 [patent_doc_number] => 07445861 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2008-11-04 [patent_title] => 'Method for detecting abnormality in fuel cell' [patent_app_type] => utility [patent_app_number] => 10/206016 [patent_app_country] => US [patent_app_date] => 2002-07-25 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 7 [patent_figures_cnt] => 9 [patent_no_of_words] => 8267 [patent_no_of_claims] => 6 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 127 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/07/445/07445861.pdf [firstpage_image] =>[orig_patent_app_number] => 10206016 [rel_patent_id] =>[rel_patent_doc_number] =>)
10/206016
Method for detecting abnormality in fuel cell Jul 24, 2002 Issued
Array ( [id] => 7396708 [patent_doc_number] => 20040018422 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2004-01-29 [patent_title] => 'Device including flexible battery and method of producing same' [patent_app_type] => new [patent_app_number] => 10/201272 [patent_app_country] => US [patent_app_date] => 2002-07-24 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 9 [patent_figures_cnt] => 9 [patent_no_of_words] => 5156 [patent_no_of_claims] => 46 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 50 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] => publications/A1/0018/20040018422.pdf [firstpage_image] =>[orig_patent_app_number] => 10201272 [rel_patent_id] =>[rel_patent_doc_number] =>)
10/201272
Device including flexible battery and method of producing same Jul 23, 2002 Abandoned
Array ( [id] => 6782829 [patent_doc_number] => 20030064276 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2003-04-03 [patent_title] => 'Fuel Cell' [patent_app_type] => new [patent_app_number] => 10/110822 [patent_app_country] => US [patent_app_date] => 2002-07-18 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 11 [patent_figures_cnt] => 11 [patent_no_of_words] => 18090 [patent_no_of_claims] => 16 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 98 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] => publications/A1/0064/20030064276.pdf [firstpage_image] =>[orig_patent_app_number] => 10110822 [rel_patent_id] =>[rel_patent_doc_number] =>)
10/110822
Fuel Cell Jul 17, 2002 Abandoned
Array ( [id] => 6755574 [patent_doc_number] => 20030003351 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2003-01-02 [patent_title] => 'Secondary battery' [patent_app_type] => new [patent_app_number] => 10/188729 [patent_app_country] => US [patent_app_date] => 2002-07-02 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 14 [patent_figures_cnt] => 14 [patent_no_of_words] => 4786 [patent_no_of_claims] => 7 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 71 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] => publications/A1/0003/20030003351.pdf [firstpage_image] =>[orig_patent_app_number] => 10188729 [rel_patent_id] =>[rel_patent_doc_number] =>)
10/188729
Secondary battery Jul 1, 2002 Abandoned
Array ( [id] => 7431156 [patent_doc_number] => 20040001985 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2004-01-01 [patent_title] => 'Fuel cell cooling system' [patent_app_type] => new [patent_app_number] => 10/184104 [patent_app_country] => US [patent_app_date] => 2002-06-28 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 3 [patent_no_of_words] => 4912 [patent_no_of_claims] => 32 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 141 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] => publications/A1/0001/20040001985.pdf [firstpage_image] =>[orig_patent_app_number] => 10184104 [rel_patent_id] =>[rel_patent_doc_number] =>)
10/184104
Fuel cell cooling system Jun 27, 2002 Abandoned
Array ( [id] => 482890 [patent_doc_number] => 07220693 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2007-05-22 [patent_title] => 'Fuel cell catalyst electrodes' [patent_app_type] => utility [patent_app_number] => 10/187033 [patent_app_country] => US [patent_app_date] => 2002-06-27 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 5 [patent_figures_cnt] => 5 [patent_no_of_words] => 3677 [patent_no_of_claims] => 8 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 79 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/07/220/07220693.pdf [firstpage_image] =>[orig_patent_app_number] => 10187033 [rel_patent_id] =>[rel_patent_doc_number] =>)
10/187033
Fuel cell catalyst electrodes Jun 26, 2002 Issued
Array ( [id] => 6825115 [patent_doc_number] => 20030235737 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2003-12-25 [patent_title] => 'Metal-coated polymer electrolyte and method of manufacturing thereof' [patent_app_type] => new [patent_app_number] => 10/173825 [patent_app_country] => US [patent_app_date] => 2002-06-19 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 12 [patent_figures_cnt] => 12 [patent_no_of_words] => 5358 [patent_no_of_claims] => 37 [patent_no_of_ind_claims] => 9 [patent_words_short_claim] => 42 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] => publications/A1/0235/20030235737.pdf [firstpage_image] =>[orig_patent_app_number] => 10173825 [rel_patent_id] =>[rel_patent_doc_number] =>)
10/173825
Metal-coated polymer electrolyte and method of manufacturing thereof Jun 18, 2002 Abandoned
Array ( [id] => 6765483 [patent_doc_number] => 20030099882 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2003-05-29 [patent_title] => 'Methods and materials for the preparation of a zinc anode useful for batteries and fuel cells' [patent_app_type] => new [patent_app_number] => 10/171079 [patent_app_country] => US [patent_app_date] => 2002-06-12 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 6 [patent_figures_cnt] => 6 [patent_no_of_words] => 4215 [patent_no_of_claims] => 26 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 29 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] => publications/A1/0099/20030099882.pdf [firstpage_image] =>[orig_patent_app_number] => 10171079 [rel_patent_id] =>[rel_patent_doc_number] =>)
10/171079
Methods and materials for the preparation of a zinc anode useful for batteries and fuel cells Jun 11, 2002 Abandoned
Array ( [id] => 6523878 [patent_doc_number] => 20020192535 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2002-12-19 [patent_title] => 'Electrode for solid polymer type fuel cell and manufacturing method therefor' [patent_app_type] => new [patent_app_number] => 10/166717 [patent_app_country] => US [patent_app_date] => 2002-06-12 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 7 [patent_figures_cnt] => 7 [patent_no_of_words] => 8331 [patent_no_of_claims] => 33 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 37 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] => publications/A1/0192/20020192535.pdf [firstpage_image] =>[orig_patent_app_number] => 10166717 [rel_patent_id] =>[rel_patent_doc_number] =>)
10/166717
Electrode for solid polymer type fuel cell and manufacturing method therefor Jun 11, 2002 Abandoned
Array ( [id] => 6701343 [patent_doc_number] => 20030224223 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2003-12-04 [patent_title] => 'Battery pack electronics assembly' [patent_app_type] => new [patent_app_number] => 10/163666 [patent_app_country] => US [patent_app_date] => 2002-06-06 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 4 [patent_no_of_words] => 2424 [patent_no_of_claims] => 34 [patent_no_of_ind_claims] => 6 [patent_words_short_claim] => 45 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] => publications/A1/0224/20030224223.pdf [firstpage_image] =>[orig_patent_app_number] => 10163666 [rel_patent_id] =>[rel_patent_doc_number] =>)
10/163666
Battery pack electronics assembly Jun 5, 2002 Abandoned
Array ( [id] => 6259488 [patent_doc_number] => 20020187384 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2002-12-12 [patent_title] => 'Seal structure of a fuel cell' [patent_app_type] => new [patent_app_number] => 10/161617 [patent_app_country] => US [patent_app_date] => 2002-06-05 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 6 [patent_figures_cnt] => 6 [patent_no_of_words] => 5736 [patent_no_of_claims] => 14 [patent_no_of_ind_claims] => 4 [patent_words_short_claim] => 113 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] => publications/A1/0187/20020187384.pdf [firstpage_image] =>[orig_patent_app_number] => 10161617 [rel_patent_id] =>[rel_patent_doc_number] =>)
10/161617
Separator seal structure for a fuel cell Jun 4, 2002 Issued
Array ( [id] => 6157281 [patent_doc_number] => 20020146611 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2002-10-10 [patent_title] => 'ELECTROCHEMICAL CELL HAVING GAS FLOW CHANNELS SURROUNDED BY SOLID ELECTROLYTE AND INTERCONNECTOR' [patent_app_type] => new [patent_app_number] => 10/158085 [patent_app_country] => US [patent_app_date] => 2002-05-31 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 12 [patent_figures_cnt] => 12 [patent_no_of_words] => 6282 [patent_no_of_claims] => 8 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 197 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] => publications/A1/0146/20020146611.pdf [firstpage_image] =>[orig_patent_app_number] => 10158085 [rel_patent_id] =>[rel_patent_doc_number] =>)
10/158085
ELECTROCHEMICAL CELL HAVING GAS FLOW CHANNELS SURROUNDED BY SOLID ELECTROLYTE AND INTERCONNECTOR May 30, 2002 Abandoned
Array ( [id] => 6650111 [patent_doc_number] => 20030008213 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2003-01-09 [patent_title] => 'Method for manufacturing lithium battery' [patent_app_type] => new [patent_app_number] => 10/153223 [patent_app_country] => US [patent_app_date] => 2002-05-23 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 2 [patent_figures_cnt] => 2 [patent_no_of_words] => 3873 [patent_no_of_claims] => 36 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 91 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] => publications/A1/0008/20030008213.pdf [firstpage_image] =>[orig_patent_app_number] => 10153223 [rel_patent_id] =>[rel_patent_doc_number] =>)
10/153223
Method for manufacturing lithium battery May 22, 2002 Abandoned
Array ( [id] => 6650111 [patent_doc_number] => 20030008213 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2003-01-09 [patent_title] => 'Method for manufacturing lithium battery' [patent_app_type] => new [patent_app_number] => 10/153223 [patent_app_country] => US [patent_app_date] => 2002-05-23 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 2 [patent_figures_cnt] => 2 [patent_no_of_words] => 3873 [patent_no_of_claims] => 36 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 91 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] => publications/A1/0008/20030008213.pdf [firstpage_image] =>[orig_patent_app_number] => 10153223 [rel_patent_id] =>[rel_patent_doc_number] =>)
10/153223
Method for manufacturing lithium battery May 22, 2002 Abandoned
Array ( [id] => 6650097 [patent_doc_number] => 20030008210 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2003-01-09 [patent_title] => 'Silver maganese salt cathodes for alkaline batteries' [patent_app_type] => new [patent_app_number] => 10/076268 [patent_app_country] => US [patent_app_date] => 2002-05-13 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 9 [patent_figures_cnt] => 9 [patent_no_of_words] => 3154 [patent_no_of_claims] => 31 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 66 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] => publications/A1/0008/20030008210.pdf [firstpage_image] =>[orig_patent_app_number] => 10076268 [rel_patent_id] =>[rel_patent_doc_number] =>)
10/076268
Silver maganese salt cathodes for alkaline batteries May 12, 2002 Abandoned
Array ( [id] => 151019 [patent_doc_number] => 07682714 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2010-03-23 [patent_title] => 'Connecting structure of a cell monitor connector to a fuel cell stack' [patent_app_type] => utility [patent_app_number] => 10/140828 [patent_app_country] => US [patent_app_date] => 2002-05-09 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 5 [patent_figures_cnt] => 9 [patent_no_of_words] => 4908 [patent_no_of_claims] => 5 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 306 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/07/682/07682714.pdf [firstpage_image] =>[orig_patent_app_number] => 10140828 [rel_patent_id] =>[rel_patent_doc_number] =>)
10/140828
Connecting structure of a cell monitor connector to a fuel cell stack May 8, 2002 Issued
Array ( [id] => 602243 [patent_doc_number] => 07432005 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2008-10-07 [patent_title] => 'Model-based feed-forward control system for power (or current) in a fuel cell system' [patent_app_type] => utility [patent_app_number] => 10/134669 [patent_app_country] => US [patent_app_date] => 2002-04-29 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 5 [patent_no_of_words] => 2068 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 175 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/07/432/07432005.pdf [firstpage_image] =>[orig_patent_app_number] => 10134669 [rel_patent_id] =>[rel_patent_doc_number] =>)
10/134669
Model-based feed-forward control system for power (or current) in a fuel cell system Apr 28, 2002 Issued
Array ( [id] => 6523828 [patent_doc_number] => 20020192530 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2002-12-19 [patent_title] => 'Fuel cell that can stably generate electricity with excellent characteristics' [patent_app_type] => new [patent_app_number] => 10/088515 [patent_app_country] => US [patent_app_date] => 2002-03-29 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 12 [patent_figures_cnt] => 12 [patent_no_of_words] => 11967 [patent_no_of_claims] => 19 [patent_no_of_ind_claims] => 8 [patent_words_short_claim] => 39 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] => publications/A1/0192/20020192530.pdf [firstpage_image] =>[orig_patent_app_number] => 10088515 [rel_patent_id] =>[rel_patent_doc_number] =>)
10/088515
Fuel cell that can stably generate electricity with excellent characteristics Mar 28, 2002 Abandoned
Array ( [id] => 7303598 [patent_doc_number] => 20040115488 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2004-06-17 [patent_title] => 'Fuel battery system and purging method therefor' [patent_app_type] => new [patent_app_number] => 10/470779 [patent_app_country] => US [patent_app_date] => 2004-01-05 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 8 [patent_figures_cnt] => 8 [patent_no_of_words] => 6754 [patent_no_of_claims] => 27 [patent_no_of_ind_claims] => 9 [patent_words_short_claim] => 49 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] => publications/A1/0115/20040115488.pdf [firstpage_image] =>[orig_patent_app_number] => 10470779 [rel_patent_id] =>[rel_patent_doc_number] =>)
10/470779
Purging method of fuel cell system Jan 28, 2002 Issued
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