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] => 6041683 [patent_doc_number] => 20110203760 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2011-08-25 [patent_title] => 'METHOD FOR MAKING A MOLD FOR CASTING HIGHLY REACTIVE MOLTEN MASSES' [patent_app_type] => utility [patent_app_number] => 12/998168 [patent_app_country] => US [patent_app_date] => 2009-09-24 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 2 [patent_figures_cnt] => 2 [patent_no_of_words] => 2499 [patent_no_of_claims] => 25 [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/A1/0203/20110203760.pdf [firstpage_image] =>[orig_patent_app_number] => 12998168 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/998168
METHOD FOR MAKING A MOLD FOR CASTING HIGHLY REACTIVE MOLTEN MASSES Sep 23, 2009 Abandoned
Array ( [id] => 6621568 [patent_doc_number] => 20100003602 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2010-01-07 [patent_title] => 'ELECTRODE MATERIAL FOR NON-AQUEOUS SECONDARY BATTERY' [patent_app_type] => utility [patent_app_number] => 12/554313 [patent_app_country] => US [patent_app_date] => 2009-09-04 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 8099 [patent_no_of_claims] => 17 [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/A1/0003/20100003602.pdf [firstpage_image] =>[orig_patent_app_number] => 12554313 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/554313
ELECTRODE MATERIAL FOR NON-AQUEOUS SECONDARY BATTERY Sep 3, 2009 Abandoned
Array ( [id] => 8621289 [patent_doc_number] => 08354201 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2013-01-15 [patent_title] => 'Fuel cell with spatially non-homogeneous ionic membrane' [patent_app_type] => utility [patent_app_number] => 12/549885 [patent_app_country] => US [patent_app_date] => 2009-08-28 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 8 [patent_no_of_words] => 5244 [patent_no_of_claims] => 17 [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] =>[firstpage_image] =>[orig_patent_app_number] => 12549885 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/549885
Fuel cell with spatially non-homogeneous ionic membrane Aug 27, 2009 Issued
Array ( [id] => 6253829 [patent_doc_number] => 20100028747 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2010-02-04 [patent_title] => 'PRECONDITIONING TREATMENT TO ENHANCE REDOX TOLERANCE OF SOLID OXIDE FUEL CELLS' [patent_app_type] => utility [patent_app_number] => 12/510432 [patent_app_country] => US [patent_app_date] => 2009-07-28 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 8 [patent_figures_cnt] => 8 [patent_no_of_words] => 2563 [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/A1/0028/20100028747.pdf [firstpage_image] =>[orig_patent_app_number] => 12510432 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/510432
Preconditioning treatment to enhance redox tolerance of solid oxide fuel cells Jul 27, 2009 Issued
Array ( [id] => 5313905 [patent_doc_number] => 20090278503 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2009-11-12 [patent_title] => 'THIN-FILM BATTERY EQUIPMENT' [patent_app_type] => utility [patent_app_number] => 12/506184 [patent_app_country] => US [patent_app_date] => 2009-07-20 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 8 [patent_figures_cnt] => 8 [patent_no_of_words] => 2991 [patent_no_of_claims] => 11 [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/A1/0278/20090278503.pdf [firstpage_image] =>[orig_patent_app_number] => 12506184 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/506184
THIN-FILM BATTERY EQUIPMENT Jul 19, 2009 Abandoned
Array ( [id] => 5366984 [patent_doc_number] => 20090304543 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2009-12-10 [patent_title] => 'Steel for nitrocarburizing use, steel product for nitrocarburizing use and crankshaft' [patent_app_type] => utility [patent_app_number] => 12/457268 [patent_app_country] => US [patent_app_date] => 2009-06-05 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 1 [patent_figures_cnt] => 1 [patent_no_of_words] => 10459 [patent_no_of_claims] => 11 [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/A1/0304/20090304543.pdf [firstpage_image] =>[orig_patent_app_number] => 12457268 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/457268
Steel for nitrocarburizing use, steel product for nitrocarburizing use and crankshaft Jun 4, 2009 Abandoned
Array ( [id] => 6445753 [patent_doc_number] => 20100104949 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2010-04-29 [patent_title] => 'Electrolyte and rechargeable lithium battery' [patent_app_type] => utility [patent_app_number] => 12/385669 [patent_app_country] => US [patent_app_date] => 2009-04-15 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 2 [patent_figures_cnt] => 2 [patent_no_of_words] => 8534 [patent_no_of_claims] => 31 [patent_no_of_ind_claims] => 7 [patent_words_short_claim] => 0 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] => publications/A1/0104/20100104949.pdf [firstpage_image] =>[orig_patent_app_number] => 12385669 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/385669
Electrolyte solvent and rechargeable lithium battery Apr 14, 2009 Issued
Array ( [id] => 6342518 [patent_doc_number] => 20100247994 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2010-09-30 [patent_title] => 'Battery holder for a battery array, and battery array' [patent_app_type] => utility [patent_app_number] => 12/382913 [patent_app_country] => US [patent_app_date] => 2009-03-26 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 19 [patent_figures_cnt] => 19 [patent_no_of_words] => 7808 [patent_no_of_claims] => 20 [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/A1/0247/20100247994.pdf [firstpage_image] =>[orig_patent_app_number] => 12382913 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/382913
Battery holder for a battery array, and battery array Mar 25, 2009 Issued
Array ( [id] => 7478810 [patent_doc_number] => 20110247778 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2011-10-13 [patent_title] => 'METHOD OF SYNTHESIZING METAL -BASED COMPOSITE MATERIAL BY MELT REACTION IN COUPLING MAGNETIC FIELD AND ULTRASONIC FIELD' [patent_app_type] => utility [patent_app_number] => 13/126510 [patent_app_country] => US [patent_app_date] => 2009-03-10 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 4 [patent_no_of_words] => 3582 [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/A1/0247/20110247778.pdf [firstpage_image] =>[orig_patent_app_number] => 13126510 [rel_patent_id] =>[rel_patent_doc_number] =>)
13/126510
METHOD OF SYNTHESIZING METAL -BASED COMPOSITE MATERIAL BY MELT REACTION IN COUPLING MAGNETIC FIELD AND ULTRASONIC FIELD Mar 9, 2009 Abandoned
Array ( [id] => 8642284 [patent_doc_number] => 08367264 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2013-02-05 [patent_title] => 'Fuel cell system with co detector' [patent_app_type] => utility [patent_app_number] => 12/594991 [patent_app_country] => US [patent_app_date] => 2009-02-20 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 10 [patent_figures_cnt] => 10 [patent_no_of_words] => 8965 [patent_no_of_claims] => 14 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 150 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 12594991 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/594991
Fuel cell system with co detector Feb 19, 2009 Issued
Array ( [id] => 5495675 [patent_doc_number] => 20090263703 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2009-10-22 [patent_title] => 'CAP ASSEMBLY AND SECONDARY BATTERY USING THE SAME' [patent_app_type] => utility [patent_app_number] => 12/372985 [patent_app_country] => US [patent_app_date] => 2009-02-18 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 5 [patent_figures_cnt] => 5 [patent_no_of_words] => 4300 [patent_no_of_claims] => 23 [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/A1/0263/20090263703.pdf [firstpage_image] =>[orig_patent_app_number] => 12372985 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/372985
CAP ASSEMBLY AND SECONDARY BATTERY USING THE SAME Feb 17, 2009 Abandoned
Array ( [id] => 141333 [patent_doc_number] => 07687179 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2010-03-30 [patent_title] => 'Fuel cell device with air filter' [patent_app_type] => utility [patent_app_number] => 12/369591 [patent_app_country] => US [patent_app_date] => 2009-02-11 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 6 [patent_figures_cnt] => 12 [patent_no_of_words] => 5799 [patent_no_of_claims] => 2 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 224 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/07/687/07687179.pdf [firstpage_image] =>[orig_patent_app_number] => 12369591 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/369591
Fuel cell device with air filter Feb 10, 2009 Issued
Array ( [id] => 8469519 [patent_doc_number] => 08298698 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2012-10-30 [patent_title] => 'Battery pack case providing improved uniformity in coolant flux' [patent_app_type] => utility [patent_app_number] => 12/321486 [patent_app_country] => US [patent_app_date] => 2009-01-21 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 5 [patent_figures_cnt] => 10 [patent_no_of_words] => 7172 [patent_no_of_claims] => 15 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 257 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 12321486 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/321486
Battery pack case providing improved uniformity in coolant flux Jan 20, 2009 Issued
Array ( [id] => 5523569 [patent_doc_number] => 20090193645 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2009-08-06 [patent_title] => 'Method for continuous casting and rolling at increased casting speed followed by hot rolling of relatively thin metal strands, especially steel strands, and a continuous casting and rolling installation' [patent_app_type] => utility [patent_app_number] => 12/321181 [patent_app_country] => US [patent_app_date] => 2009-01-17 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 5 [patent_figures_cnt] => 5 [patent_no_of_words] => 2865 [patent_no_of_claims] => 13 [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/A1/0193/20090193645.pdf [firstpage_image] =>[orig_patent_app_number] => 12321181 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/321181
Method for continuous casting and rolling at increased casting speed followed by hot rolling of relatively thin metal strands, especially steel strands, and a continuous casting and rolling installation Jan 16, 2009 Abandoned
Array ( [id] => 5342629 [patent_doc_number] => 20090181279 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2009-07-16 [patent_title] => 'FUEL FOR FUEL CELL, AND FUEL CELL SYSTEM' [patent_app_type] => utility [patent_app_number] => 12/354390 [patent_app_country] => US [patent_app_date] => 2009-01-15 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 3 [patent_no_of_words] => 5408 [patent_no_of_claims] => 13 [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/A1/0181/20090181279.pdf [firstpage_image] =>[orig_patent_app_number] => 12354390 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/354390
FUEL FOR FUEL CELL, AND FUEL CELL SYSTEM Jan 14, 2009 Abandoned
Array ( [id] => 8457737 [patent_doc_number] => 08293402 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2012-10-23 [patent_title] => 'Battery with circuit board and lead terminals' [patent_app_type] => utility [patent_app_number] => 12/318589 [patent_app_country] => US [patent_app_date] => 2008-12-31 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 7 [patent_no_of_words] => 4677 [patent_no_of_claims] => 4 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 152 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 12318589 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/318589
Battery with circuit board and lead terminals Dec 30, 2008 Issued
Array ( [id] => 5278390 [patent_doc_number] => 20090130522 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2009-05-21 [patent_title] => 'Fuel cell module and structure for gas supply to fuel cell' [patent_app_type] => utility [patent_app_number] => 12/318569 [patent_app_country] => US [patent_app_date] => 2008-12-31 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 19 [patent_figures_cnt] => 19 [patent_no_of_words] => 34009 [patent_no_of_claims] => 1 [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/A1/0130/20090130522.pdf [firstpage_image] =>[orig_patent_app_number] => 12318569 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/318569
Fuel cell module and structure for gas supply to fuel cell Dec 30, 2008 Issued
Array ( [id] => 5545770 [patent_doc_number] => 20090155647 [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] => 12/335355 [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] => 38196 [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/A1/0155/20090155647.pdf [firstpage_image] =>[orig_patent_app_number] => 12335355 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/335355
SYSTEM AND PROCESS FOR GENERATING ELECTRICAL POWER Dec 14, 2008 Abandoned
Array ( [id] => 5545767 [patent_doc_number] => 20090155644 [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] => 12/335387 [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] => 19724 [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/A1/0155/20090155644.pdf [firstpage_image] =>[orig_patent_app_number] => 12335387 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/335387
SYSTEM AND PROCESS FOR GENERATING ELECTRICAL POWER Dec 14, 2008 Abandoned
Array ( [id] => 5545762 [patent_doc_number] => 20090155639 [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] => 12/335358 [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] => 19884 [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/A1/0155/20090155639.pdf [firstpage_image] =>[orig_patent_app_number] => 12335358 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/335358
SYSTEM AND PROCESS FOR GENERATING ELECTRICAL POWER Dec 14, 2008 Abandoned
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