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David P Porta

Supervisory Patent Examiner (ID: 12383, Phone: (571)272-2444 , Office: P/2884 )

Most Active Art Unit
2506
Art Unit(s)
2884, 2899, 2878, 2882, 3621, 2876, 2506
Total Applications
1617
Issued Applications
1310
Pending Applications
166
Abandoned Applications
141

Applications

Application numberTitle of the applicationFiling DateStatus
Array ( [id] => 2420312 [patent_doc_number] => 04788168 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1988-11-29 [patent_title] => 'Method for producing carbon-ceramic composite material' [patent_app_type] => 1 [patent_app_number] => 6/876426 [patent_app_country] => US [patent_app_date] => 1986-06-20 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 1551 [patent_no_of_claims] => 10 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 75 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/788/04788168.pdf [firstpage_image] =>[orig_patent_app_number] => 876426 [rel_patent_id] =>[rel_patent_doc_number] =>)
06/876426
Method for producing carbon-ceramic composite material Jun 19, 1986 Issued
Array ( [id] => 2484446 [patent_doc_number] => 04820666 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1989-04-11 [patent_title] => 'Zirconia base ceramics' [patent_app_type] => 1 [patent_app_number] => 6/842496 [patent_app_country] => US [patent_app_date] => 1986-03-21 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 10 [patent_figures_cnt] => 10 [patent_no_of_words] => 11908 [patent_no_of_claims] => 26 [patent_no_of_ind_claims] => 5 [patent_words_short_claim] => 27 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/820/04820666.pdf [firstpage_image] =>[orig_patent_app_number] => 842496 [rel_patent_id] =>[rel_patent_doc_number] =>)
06/842496
Zirconia base ceramics Mar 20, 1986 Issued
Array ( [id] => 2550521 [patent_doc_number] => 04803004 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1989-02-07 [patent_title] => 'Reaction products of alkenylsuccinic compounds with aromatic amines and hindered alcohols and lubricant compositions thereof' [patent_app_type] => 1 [patent_app_number] => 6/702989 [patent_app_country] => US [patent_app_date] => 1985-02-19 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 2428 [patent_no_of_claims] => 30 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 112 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/803/04803004.pdf [firstpage_image] =>[orig_patent_app_number] => 702989 [rel_patent_id] =>[rel_patent_doc_number] =>)
06/702989
Reaction products of alkenylsuccinic compounds with aromatic amines and hindered alcohols and lubricant compositions thereof Feb 18, 1985 Issued
Array ( [id] => 2423288 [patent_doc_number] => 04780446 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1988-10-25 [patent_title] => 'Alumina-silica cogel' [patent_app_type] => 1 [patent_app_number] => 6/697186 [patent_app_country] => US [patent_app_date] => 1985-02-01 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 1 [patent_figures_cnt] => 1 [patent_no_of_words] => 2219 [patent_no_of_claims] => 6 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 92 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/780/04780446.pdf [firstpage_image] =>[orig_patent_app_number] => 697186 [rel_patent_id] =>[rel_patent_doc_number] =>)
06/697186
Alumina-silica cogel Jan 31, 1985 Issued
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