Search

Keith D. Walker

Supervisory Patent Examiner (ID: 7518, Phone: (571)272-3458 , Office: P/1735 )

Most Active Art Unit
1735
Art Unit(s)
1726, 1745, 1795, 1735
Total Applications
565
Issued Applications
152
Pending Applications
54
Abandoned Applications
362

Applications

Application numberTitle of the applicationFiling DateStatus
Array ( [id] => 7469981 [patent_doc_number] => 20040096727 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2004-05-20 [patent_title] => 'Fuel cell, fuel cell generator, and equipment using the same' [patent_app_type] => new [patent_app_number] => 10/706908 [patent_app_country] => US [patent_app_date] => 2003-11-14 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 25 [patent_figures_cnt] => 25 [patent_no_of_words] => 15461 [patent_no_of_claims] => 12 [patent_no_of_ind_claims] => 6 [patent_words_short_claim] => 91 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] => publications/A1/0096/20040096727.pdf [firstpage_image] =>[orig_patent_app_number] => 10706908 [rel_patent_id] =>[rel_patent_doc_number] =>)
10/706908
Fuel cell, fuel cell generator, and equipment using the same Nov 13, 2003 Abandoned
Array ( [id] => 408030 [patent_doc_number] => 07285347 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2007-10-23 [patent_title] => 'Anode-supported flat-tubular solid oxide fuel cell stack and fabrication method of the same' [patent_app_type] => utility [patent_app_number] => 10/700025 [patent_app_country] => US [patent_app_date] => 2003-11-03 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 8 [patent_figures_cnt] => 12 [patent_no_of_words] => 8406 [patent_no_of_claims] => 7 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 479 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/07/285/07285347.pdf [firstpage_image] =>[orig_patent_app_number] => 10700025 [rel_patent_id] =>[rel_patent_doc_number] =>)
10/700025
Anode-supported flat-tubular solid oxide fuel cell stack and fabrication method of the same Nov 2, 2003 Issued
Array ( [id] => 7425542 [patent_doc_number] => 20040265664 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2004-12-30 [patent_title] => 'Fuel cell device with a textured electrolyte sheet and a method of making such sheet' [patent_app_type] => new [patent_app_number] => 10/700295 [patent_app_country] => US [patent_app_date] => 2003-11-03 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 11 [patent_figures_cnt] => 11 [patent_no_of_words] => 11783 [patent_no_of_claims] => 28 [patent_no_of_ind_claims] => 4 [patent_words_short_claim] => 88 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] => publications/A1/0265/20040265664.pdf [firstpage_image] =>[orig_patent_app_number] => 10700295 [rel_patent_id] =>[rel_patent_doc_number] =>)
10/700295
Fuel cell device with a textured electrolyte sheet and a method of making such sheet Nov 2, 2003 Abandoned
Array ( [id] => 5056655 [patent_doc_number] => 20070059577 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2007-03-15 [patent_title] => 'Proton exchange membrane fuel cell using solid electrolyte membrane of sheet silicate minerals and an intercalation compound' [patent_app_type] => utility [patent_app_number] => 10/529877 [patent_app_country] => US [patent_app_date] => 2003-10-20 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 6 [patent_figures_cnt] => 6 [patent_no_of_words] => 2937 [patent_no_of_claims] => 13 [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/A1/0059/20070059577.pdf [firstpage_image] =>[orig_patent_app_number] => 10529877 [rel_patent_id] =>[rel_patent_doc_number] =>)
10/529877
Proton exchange membrane fuel cell using solid electrolyte membrane of sheet silicate minerals and an intercalation compound Oct 19, 2003 Abandoned
Array ( [id] => 7363268 [patent_doc_number] => 20040091762 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2004-05-13 [patent_title] => 'Polymer composition, membrane containing said composition, method for the production and uses thereof' [patent_app_type] => new [patent_app_number] => 10/685179 [patent_app_country] => US [patent_app_date] => 2003-10-14 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 4742 [patent_no_of_claims] => 25 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 27 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] => publications/A1/0091/20040091762.pdf [firstpage_image] =>[orig_patent_app_number] => 10685179 [rel_patent_id] =>[rel_patent_doc_number] =>)
10/685179
Polymer composition, membrane containing said composition, method for the production and uses thereof Oct 13, 2003 Abandoned
Array ( [id] => 5873747 [patent_doc_number] => 20060166075 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2006-07-27 [patent_title] => 'Flame-resistant acrylic fiber nonwoven fabric, carbon fiber nonwoven fabric, and method for production thereof' [patent_app_type] => utility [patent_app_number] => 10/528633 [patent_app_country] => US [patent_app_date] => 2003-09-25 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 21200 [patent_no_of_claims] => 34 [patent_no_of_ind_claims] => 13 [patent_words_short_claim] => 0 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] => publications/A1/0166/20060166075.pdf [firstpage_image] =>[orig_patent_app_number] => 10528633 [rel_patent_id] =>[rel_patent_doc_number] =>)
10/528633
Flame-resistant acrylic fiber nonwoven fabric, carbon fiber nonwoven fabric, and method for production thereof Sep 24, 2003 Abandoned
Array ( [id] => 7434267 [patent_doc_number] => 20040049908 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2004-03-18 [patent_title] => 'Electric storage battery construction and method of manufacture' [patent_app_type] => new [patent_app_number] => 10/665509 [patent_app_country] => US [patent_app_date] => 2003-09-17 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 12 [patent_figures_cnt] => 12 [patent_no_of_words] => 4465 [patent_no_of_claims] => 65 [patent_no_of_ind_claims] => 15 [patent_words_short_claim] => 14 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] => publications/A1/0049/20040049908.pdf [firstpage_image] =>[orig_patent_app_number] => 10665509 [rel_patent_id] =>[rel_patent_doc_number] =>)
10/665509
Electric storage battery construction and method of manufacture Sep 16, 2003 Abandoned
Array ( [id] => 7127139 [patent_doc_number] => 20050058883 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2005-03-17 [patent_title] => 'Plasma sprayed ceramic-metal fuel electrode' [patent_app_type] => utility [patent_app_number] => 10/663949 [patent_app_country] => US [patent_app_date] => 2003-09-16 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 5 [patent_figures_cnt] => 5 [patent_no_of_words] => 5464 [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/A1/0058/20050058883.pdf [firstpage_image] =>[orig_patent_app_number] => 10663949 [rel_patent_id] =>[rel_patent_doc_number] =>)
10/663949
Plasma sprayed ceramic-metal fuel electrode Sep 15, 2003 Issued
Array ( [id] => 7675473 [patent_doc_number] => 20040126645 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2004-07-01 [patent_title] => 'Fuel battery' [patent_app_type] => new [patent_app_number] => 10/661524 [patent_app_country] => US [patent_app_date] => 2003-09-15 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 6 [patent_figures_cnt] => 6 [patent_no_of_words] => 5762 [patent_no_of_claims] => 15 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 92 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] => publications/A1/0126/20040126645.pdf [firstpage_image] =>[orig_patent_app_number] => 10661524 [rel_patent_id] =>[rel_patent_doc_number] =>)
10/661524
Fuel battery Sep 14, 2003 Abandoned
Array ( [id] => 7153517 [patent_doc_number] => 20050026038 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2005-02-03 [patent_title] => 'Compositions, zinc electrodes, batteries and their methods of manufacture' [patent_app_type] => utility [patent_app_number] => 10/662785 [patent_app_country] => US [patent_app_date] => 2003-09-15 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 4 [patent_no_of_words] => 7248 [patent_no_of_claims] => 87 [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/A1/0026/20050026038.pdf [firstpage_image] =>[orig_patent_app_number] => 10662785 [rel_patent_id] =>[rel_patent_doc_number] =>)
10/662785
Method of making zinc electrode including a fatty acid Sep 14, 2003 Issued
Array ( [id] => 7350926 [patent_doc_number] => 20040048160 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2004-03-11 [patent_title] => 'Non-aqueous electrode battery' [patent_app_type] => new [patent_app_number] => 10/660807 [patent_app_country] => US [patent_app_date] => 2003-09-11 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 2 [patent_figures_cnt] => 2 [patent_no_of_words] => 11717 [patent_no_of_claims] => 10 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 105 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] => publications/A1/0048/20040048160.pdf [firstpage_image] =>[orig_patent_app_number] => 10660807 [rel_patent_id] =>[rel_patent_doc_number] =>)
10/660807
Non-aqueous electrode battery Sep 10, 2003 Abandoned
Array ( [id] => 7210111 [patent_doc_number] => 20050053834 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2005-03-10 [patent_title] => 'Positive electrode material and method' [patent_app_type] => utility [patent_app_number] => 10/656677 [patent_app_country] => US [patent_app_date] => 2003-09-04 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 7 [patent_figures_cnt] => 7 [patent_no_of_words] => 3581 [patent_no_of_claims] => 31 [patent_no_of_ind_claims] => 4 [patent_words_short_claim] => 0 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] => publications/A1/0053/20050053834.pdf [firstpage_image] =>[orig_patent_app_number] => 10656677 [rel_patent_id] =>[rel_patent_doc_number] =>)
10/656677
Positive electrode material and method Sep 3, 2003 Abandoned
Array ( [id] => 7245907 [patent_doc_number] => 20050271947 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2005-12-08 [patent_title] => 'Separator, battery with separator and method for producing a separator' [patent_app_type] => utility [patent_app_number] => 10/524277 [patent_app_country] => US [patent_app_date] => 2003-08-28 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 8 [patent_figures_cnt] => 8 [patent_no_of_words] => 4623 [patent_no_of_claims] => 18 [patent_no_of_ind_claims] => 8 [patent_words_short_claim] => 0 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] => publications/A1/0271/20050271947.pdf [firstpage_image] =>[orig_patent_app_number] => 10524277 [rel_patent_id] =>[rel_patent_doc_number] =>)
10/524277
Separator, battery with separator and method for producing a separator Aug 27, 2003 Abandoned
Array ( [id] => 782625 [patent_doc_number] => 06991871 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2006-01-31 [patent_title] => 'Fuel cell' [patent_app_type] => utility [patent_app_number] => 10/650610 [patent_app_country] => US [patent_app_date] => 2003-08-27 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 17 [patent_figures_cnt] => 17 [patent_no_of_words] => 7105 [patent_no_of_claims] => 8 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 119 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/06/991/06991871.pdf [firstpage_image] =>[orig_patent_app_number] => 10650610 [rel_patent_id] =>[rel_patent_doc_number] =>)
10/650610
Fuel cell Aug 26, 2003 Issued
Array ( [id] => 7201708 [patent_doc_number] => 20050042494 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2005-02-24 [patent_title] => 'Compliant member for wet seal' [patent_app_type] => utility [patent_app_number] => 10/643544 [patent_app_country] => US [patent_app_date] => 2003-08-19 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 8 [patent_figures_cnt] => 8 [patent_no_of_words] => 3537 [patent_no_of_claims] => 37 [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/A1/0042/20050042494.pdf [firstpage_image] =>[orig_patent_app_number] => 10643544 [rel_patent_id] =>[rel_patent_doc_number] =>)
10/643544
Compliant member for wet seal Aug 18, 2003 Abandoned
Array ( [id] => 7391851 [patent_doc_number] => 20040038103 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2004-02-26 [patent_title] => 'Solid polymer electrolyte fuel cell assembly' [patent_app_type] => new [patent_app_number] => 10/641592 [patent_app_country] => US [patent_app_date] => 2003-08-15 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 9 [patent_figures_cnt] => 9 [patent_no_of_words] => 5219 [patent_no_of_claims] => 4 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 113 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] => publications/A1/0038/20040038103.pdf [firstpage_image] =>[orig_patent_app_number] => 10641592 [rel_patent_id] =>[rel_patent_doc_number] =>)
10/641592
Solid polymer electrolyte fuel cell assembly Aug 14, 2003 Abandoned
Array ( [id] => 946492 [patent_doc_number] => 06964824 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2005-11-15 [patent_title] => 'Fuel cell and method of operating the same' [patent_app_type] => utility [patent_app_number] => 10/641591 [patent_app_country] => US [patent_app_date] => 2003-08-15 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 21 [patent_figures_cnt] => 24 [patent_no_of_words] => 10474 [patent_no_of_claims] => 14 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 142 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/06/964/06964824.pdf [firstpage_image] =>[orig_patent_app_number] => 10641591 [rel_patent_id] =>[rel_patent_doc_number] =>)
10/641591
Fuel cell and method of operating the same Aug 14, 2003 Issued
Array ( [id] => 7391949 [patent_doc_number] => 20040038122 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2004-02-26 [patent_title] => 'Laminate cell, assembled battery, battery module and electric vehicle' [patent_app_type] => new [patent_app_number] => 10/640029 [patent_app_country] => US [patent_app_date] => 2003-08-14 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 8 [patent_figures_cnt] => 8 [patent_no_of_words] => 7674 [patent_no_of_claims] => 10 [patent_no_of_ind_claims] => 5 [patent_words_short_claim] => 116 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] => publications/A1/0038/20040038122.pdf [firstpage_image] =>[orig_patent_app_number] => 10640029 [rel_patent_id] =>[rel_patent_doc_number] =>)
10/640029
Laminate cell, assembled battery, battery module and electric vehicle Aug 13, 2003 Abandoned
Array ( [id] => 7469941 [patent_doc_number] => 20040096719 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2004-05-20 [patent_title] => 'Passive vapor exchange systems and techniques for fuel reforming and prevention of carbon fouling' [patent_app_type] => new [patent_app_number] => 10/636394 [patent_app_country] => US [patent_app_date] => 2003-08-07 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 10 [patent_figures_cnt] => 10 [patent_no_of_words] => 6056 [patent_no_of_claims] => 26 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 44 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] => publications/A1/0096/20040096719.pdf [firstpage_image] =>[orig_patent_app_number] => 10636394 [rel_patent_id] =>[rel_patent_doc_number] =>)
10/636394
Passive vapor exchange systems and techniques for fuel reforming and prevention of carbon fouling Aug 6, 2003 Abandoned
Array ( [id] => 7397564 [patent_doc_number] => 20040023081 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2004-02-05 [patent_title] => 'Fuel cell system, fuel pack, camera, portable telephone with camera and portable terminal' [patent_app_type] => new [patent_app_number] => 10/631894 [patent_app_country] => US [patent_app_date] => 2003-08-01 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 15 [patent_figures_cnt] => 15 [patent_no_of_words] => 8142 [patent_no_of_claims] => 23 [patent_no_of_ind_claims] => 4 [patent_words_short_claim] => 93 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] => publications/A1/0023/20040023081.pdf [firstpage_image] =>[orig_patent_app_number] => 10631894 [rel_patent_id] =>[rel_patent_doc_number] =>)
10/631894
Fuel cell system, fuel pack, camera, portable telephone with camera and portable terminal Jul 31, 2003 Abandoned
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