Search

Dah Wei D. Yuan

Supervisory Patent Examiner (ID: 10199, Phone: (571)272-1295 , Office: P/1717 )

Most Active Art Unit
1745
Art Unit(s)
1795, 1727, 1717, 1745
Total Applications
504
Issued Applications
341
Pending Applications
54
Abandoned Applications
113

Applications

Application numberTitle of the applicationFiling DateStatus
Array ( [id] => 6782815 [patent_doc_number] => 20030064262 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2003-04-03 [patent_title] => 'Method and apparatus for controlling a combined heat and power fuel cell system' [patent_app_type] => new [patent_app_number] => 10/158371 [patent_app_country] => US [patent_app_date] => 2002-05-30 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 10 [patent_figures_cnt] => 10 [patent_no_of_words] => 15930 [patent_no_of_claims] => 19 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 102 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] => publications/A1/0064/20030064262.pdf [firstpage_image] =>[orig_patent_app_number] => 10158371 [rel_patent_id] =>[rel_patent_doc_number] =>)
10/158371
Method and apparatus for controlling a combined heat and power fuel cell system May 29, 2002 Abandoned
Array ( [id] => 6701347 [patent_doc_number] => 20030224227 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2003-12-04 [patent_title] => 'Conditioning and maintenance methods for fuel cells' [patent_app_type] => new [patent_app_number] => 10/159594 [patent_app_country] => US [patent_app_date] => 2002-05-30 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 1 [patent_figures_cnt] => 1 [patent_no_of_words] => 4419 [patent_no_of_claims] => 19 [patent_no_of_ind_claims] => 5 [patent_words_short_claim] => 34 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] => publications/A1/0224/20030224227.pdf [firstpage_image] =>[orig_patent_app_number] => 10159594 [rel_patent_id] =>[rel_patent_doc_number] =>)
10/159594
Conditioning and maintenance methods for fuel cells May 29, 2002 Abandoned
Array ( [id] => 6523915 [patent_doc_number] => 20020192538 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2002-12-19 [patent_title] => 'Current collector for fuel cell and method of producing the same' [patent_app_type] => new [patent_app_number] => 10/157287 [patent_app_country] => US [patent_app_date] => 2002-05-29 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 2 [patent_figures_cnt] => 2 [patent_no_of_words] => 4551 [patent_no_of_claims] => 13 [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/A1/0192/20020192538.pdf [firstpage_image] =>[orig_patent_app_number] => 10157287 [rel_patent_id] =>[rel_patent_doc_number] =>)
10/157287
Current collector for fuel cell and method of producing the same May 28, 2002 Abandoned
Array ( [id] => 6317484 [patent_doc_number] => 20020195778 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2002-12-26 [patent_title] => 'Seal' [patent_app_type] => new [patent_app_number] => 10/156644 [patent_app_country] => US [patent_app_date] => 2002-05-24 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 8 [patent_figures_cnt] => 8 [patent_no_of_words] => 8830 [patent_no_of_claims] => 27 [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/A1/0195/20020195778.pdf [firstpage_image] =>[orig_patent_app_number] => 10156644 [rel_patent_id] =>[rel_patent_doc_number] =>)
10/156644
Seal May 23, 2002 Abandoned
Array ( [id] => 6404469 [patent_doc_number] => 20020182465 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2002-12-05 [patent_title] => 'Vaporizer temperature control in fuel cell power plant' [patent_app_type] => new [patent_app_number] => 10/151943 [patent_app_country] => US [patent_app_date] => 2002-05-22 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 8 [patent_figures_cnt] => 8 [patent_no_of_words] => 8019 [patent_no_of_claims] => 14 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 128 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] => publications/A1/0182/20020182465.pdf [firstpage_image] =>[orig_patent_app_number] => 10151943 [rel_patent_id] =>[rel_patent_doc_number] =>)
10/151943
Vaporizer temperature control in fuel cell power plant May 21, 2002 Issued
Array ( [id] => 6796721 [patent_doc_number] => 20030175595 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2003-09-18 [patent_title] => 'Non-aqueous electrolyte additive for improving safety and lithium ion secondary battery comprising the same' [patent_app_type] => new [patent_app_number] => 10/312672 [patent_app_country] => US [patent_app_date] => 2002-12-31 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 3 [patent_no_of_words] => 3252 [patent_no_of_claims] => 7 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 17 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] => publications/A1/0175/20030175595.pdf [firstpage_image] =>[orig_patent_app_number] => 10312672 [rel_patent_id] =>[rel_patent_doc_number] =>)
10/312672
Non-aqueous electrolyte additive for improving safety and lithium ion secondary battery comprising the same May 21, 2002 Issued
Array ( [id] => 6796722 [patent_doc_number] => 20030175596 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2003-09-18 [patent_title] => 'Non-aqueous electrolyte additive for improving safety and lithium ion secondary battery comprising the same' [patent_app_type] => new [patent_app_number] => 10/312674 [patent_app_country] => US [patent_app_date] => 2002-12-31 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 3 [patent_no_of_words] => 3853 [patent_no_of_claims] => 5 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 17 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] => publications/A1/0175/20030175596.pdf [firstpage_image] =>[orig_patent_app_number] => 10312674 [rel_patent_id] =>[rel_patent_doc_number] =>)
10/312674
Non-aqueous electrolyte additive for improving safety and lithium ion secondary battery comprising the same May 21, 2002 Issued
Array ( [id] => 484838 [patent_doc_number] => 07217471 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2007-05-15 [patent_title] => 'Membrane electrode assembly with compression control gasket' [patent_app_type] => utility [patent_app_number] => 10/150473 [patent_app_country] => US [patent_app_date] => 2002-05-17 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 2 [patent_figures_cnt] => 6 [patent_no_of_words] => 4188 [patent_no_of_claims] => 6 [patent_no_of_ind_claims] => 4 [patent_words_short_claim] => 374 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/07/217/07217471.pdf [firstpage_image] =>[orig_patent_app_number] => 10150473 [rel_patent_id] =>[rel_patent_doc_number] =>)
10/150473
Membrane electrode assembly with compression control gasket May 16, 2002 Issued
Array ( [id] => 740430 [patent_doc_number] => 07029797 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2006-04-18 [patent_title] => 'Electrode plate for alkaline storage battery and alkaline storage battery using the same' [patent_app_type] => utility [patent_app_number] => 10/150788 [patent_app_country] => US [patent_app_date] => 2002-05-17 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 8 [patent_figures_cnt] => 8 [patent_no_of_words] => 4617 [patent_no_of_claims] => 9 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 166 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/07/029/07029797.pdf [firstpage_image] =>[orig_patent_app_number] => 10150788 [rel_patent_id] =>[rel_patent_doc_number] =>)
10/150788
Electrode plate for alkaline storage battery and alkaline storage battery using the same May 16, 2002 Issued
10/049090 Lithium powder anode, lithium battery using the same and preparation thereof May 14, 2002 Abandoned
Array ( [id] => 6769756 [patent_doc_number] => 20030215696 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2003-11-20 [patent_title] => 'Electrode catalysts for H2S fuel cell' [patent_app_type] => new [patent_app_number] => 10/143944 [patent_app_country] => US [patent_app_date] => 2002-05-14 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 10 [patent_figures_cnt] => 10 [patent_no_of_words] => 4477 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 96 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] => publications/A1/0215/20030215696.pdf [firstpage_image] =>[orig_patent_app_number] => 10143944 [rel_patent_id] =>[rel_patent_doc_number] =>)
10/143944
Electrode catalysts for H2S fuel cell May 13, 2002 Abandoned
Array ( [id] => 1049892 [patent_doc_number] => 06861169 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2005-03-01 [patent_title] => 'Cogeneration of power and heat by an integrated fuel cell power system' [patent_app_type] => utility [patent_app_number] => 10/141493 [patent_app_country] => US [patent_app_date] => 2002-05-08 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 6 [patent_figures_cnt] => 8 [patent_no_of_words] => 8330 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 5 [patent_words_short_claim] => 93 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/06/861/06861169.pdf [firstpage_image] =>[orig_patent_app_number] => 10141493 [rel_patent_id] =>[rel_patent_doc_number] =>)
10/141493
Cogeneration of power and heat by an integrated fuel cell power system May 7, 2002 Issued
Array ( [id] => 6715673 [patent_doc_number] => 20030027021 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2003-02-06 [patent_title] => 'Microwave activation of fuel cell gases' [patent_app_type] => new [patent_app_number] => 10/139020 [patent_app_country] => US [patent_app_date] => 2002-05-02 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 5 [patent_figures_cnt] => 5 [patent_no_of_words] => 4879 [patent_no_of_claims] => 17 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 69 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] => publications/A1/0027/20030027021.pdf [firstpage_image] =>[orig_patent_app_number] => 10139020 [rel_patent_id] =>[rel_patent_doc_number] =>)
10/139020
Microwave activation of fuel cell gases May 1, 2002 Abandoned
Array ( [id] => 1034324 [patent_doc_number] => 06875533 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2005-04-05 [patent_title] => 'Fuel cell unit and composite block of fuel cells' [patent_app_type] => utility [patent_app_number] => 10/135184 [patent_app_country] => US [patent_app_date] => 2002-04-29 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 19 [patent_figures_cnt] => 24 [patent_no_of_words] => 12984 [patent_no_of_claims] => 26 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 141 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/06/875/06875533.pdf [firstpage_image] =>[orig_patent_app_number] => 10135184 [rel_patent_id] =>[rel_patent_doc_number] =>)
10/135184
Fuel cell unit and composite block of fuel cells Apr 28, 2002 Issued
Array ( [id] => 6175265 [patent_doc_number] => 20020155327 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2002-10-24 [patent_title] => 'Hybrid electrochemical cell system' [patent_app_type] => new [patent_app_number] => 10/128890 [patent_app_country] => US [patent_app_date] => 2002-04-24 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 2 [patent_figures_cnt] => 2 [patent_no_of_words] => 4611 [patent_no_of_claims] => 16 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 71 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] => publications/A1/0155/20020155327.pdf [firstpage_image] =>[orig_patent_app_number] => 10128890 [rel_patent_id] =>[rel_patent_doc_number] =>)
10/128890
Hybrid electrochemical cell system Apr 23, 2002 Issued
Array ( [id] => 6663938 [patent_doc_number] => 20030203264 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2003-10-30 [patent_title] => 'Maximizing PEM fuel cell power plant system efficiency at optimum system pressure' [patent_app_type] => new [patent_app_number] => 10/132789 [patent_app_country] => US [patent_app_date] => 2002-04-24 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 6 [patent_figures_cnt] => 6 [patent_no_of_words] => 2318 [patent_no_of_claims] => 4 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 148 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] => publications/A1/0203/20030203264.pdf [firstpage_image] =>[orig_patent_app_number] => 10132789 [rel_patent_id] =>[rel_patent_doc_number] =>)
10/132789
Maximizing PEM fuel cell power plant system efficiency at optimum system pressure Apr 23, 2002 Abandoned
Array ( [id] => 1305459 [patent_doc_number] => 06617070 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2003-09-09 [patent_title] => 'Methods of detecting the onset of colloid formation in particular sulfur precipitation' [patent_app_type] => B1 [patent_app_number] => 09/980313 [patent_app_country] => US [patent_app_date] => 2002-04-11 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 5 [patent_no_of_words] => 2130 [patent_no_of_claims] => 5 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 229 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/06/617/06617070.pdf [firstpage_image] =>[orig_patent_app_number] => 09980313 [rel_patent_id] =>[rel_patent_doc_number] =>)
09/980313
Methods of detecting the onset of colloid formation in particular sulfur precipitation Apr 10, 2002 Issued
Array ( [id] => 6464889 [patent_doc_number] => 20020150802 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2002-10-17 [patent_title] => 'Fuel cell system' [patent_app_type] => new [patent_app_number] => 10/119978 [patent_app_country] => US [patent_app_date] => 2002-04-10 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 12 [patent_figures_cnt] => 12 [patent_no_of_words] => 6389 [patent_no_of_claims] => 17 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 82 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] => publications/A1/0150/20020150802.pdf [firstpage_image] =>[orig_patent_app_number] => 10119978 [rel_patent_id] =>[rel_patent_doc_number] =>)
10/119978
Water control for a fuel cell system Apr 9, 2002 Issued
Array ( [id] => 1053018 [patent_doc_number] => 06858345 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2005-02-22 [patent_title] => 'Wound bipolar lithium polymer batteries' [patent_app_type] => utility [patent_app_number] => 10/118788 [patent_app_country] => US [patent_app_date] => 2002-04-09 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 5 [patent_figures_cnt] => 8 [patent_no_of_words] => 3314 [patent_no_of_claims] => 12 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 182 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/06/858/06858345.pdf [firstpage_image] =>[orig_patent_app_number] => 10118788 [rel_patent_id] =>[rel_patent_doc_number] =>)
10/118788
Wound bipolar lithium polymer batteries Apr 8, 2002 Issued
Array ( [id] => 6465019 [patent_doc_number] => 20020150815 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2002-10-17 [patent_title] => 'Battery pack' [patent_app_type] => new [patent_app_number] => 10/118211 [patent_app_country] => US [patent_app_date] => 2002-04-09 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 5 [patent_figures_cnt] => 5 [patent_no_of_words] => 4339 [patent_no_of_claims] => 7 [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/A1/0150/20020150815.pdf [firstpage_image] =>[orig_patent_app_number] => 10118211 [rel_patent_id] =>[rel_patent_doc_number] =>)
10/118211
Battery pack comprising heat-sensitive current blocking element and press portion for pressing the element Apr 8, 2002 Issued
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