Search

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
07/063605 PROCESS FOR CHEMICAL STABILIZATION OF HEAVY METAL BEARING DUSTS AND SLUDGES, SUCH AS EAF DUST Jun 17, 1987 Abandoned
Array ( [id] => 2559872 [patent_doc_number] => 04837187 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1989-06-06 [patent_title] => 'Alumina-based core containing yttria' [patent_app_type] => 1 [patent_app_number] => 7/058129 [patent_app_country] => US [patent_app_date] => 1987-06-04 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 1 [patent_figures_cnt] => 1 [patent_no_of_words] => 4433 [patent_no_of_claims] => 13 [patent_no_of_ind_claims] => 4 [patent_words_short_claim] => 50 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/837/04837187.pdf [firstpage_image] =>[orig_patent_app_number] => 058129 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/058129
Alumina-based core containing yttria Jun 3, 1987 Issued
Array ( [id] => 2442793 [patent_doc_number] => 04778778 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1988-10-18 [patent_title] => 'Process for the production of sintered aluminum nitrides' [patent_app_type] => 1 [patent_app_number] => 7/057623 [patent_app_country] => US [patent_app_date] => 1987-06-03 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 2 [patent_figures_cnt] => 4 [patent_no_of_words] => 3945 [patent_no_of_claims] => 14 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 268 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/778/04778778.pdf [firstpage_image] =>[orig_patent_app_number] => 057623 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/057623
Process for the production of sintered aluminum nitrides Jun 2, 1987 Issued
Array ( [id] => 2547817 [patent_doc_number] => 04808327 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1989-02-28 [patent_title] => 'Compositions of particulate magnetic oxides with a defect spinel structure, preparation thereof and application thereof' [patent_app_type] => 1 [patent_app_number] => 7/062609 [patent_app_country] => US [patent_app_date] => 1987-06-01 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 6538 [patent_no_of_claims] => 16 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 171 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/808/04808327.pdf [firstpage_image] =>[orig_patent_app_number] => 062609 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/062609
Compositions of particulate magnetic oxides with a defect spinel structure, preparation thereof and application thereof May 31, 1987 Issued
Array ( [id] => 2413545 [patent_doc_number] => 04786618 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1988-11-22 [patent_title] => 'Sol-gel method for making ultra-low expansion glass' [patent_app_type] => 1 [patent_app_number] => 7/055632 [patent_app_country] => US [patent_app_date] => 1987-05-29 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 1 [patent_figures_cnt] => 2 [patent_no_of_words] => 5475 [patent_no_of_claims] => 13 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 209 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/786/04786618.pdf [firstpage_image] =>[orig_patent_app_number] => 055632 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/055632
Sol-gel method for making ultra-low expansion glass May 28, 1987 Issued
07/055725 CELLULAR CONCRETE May 28, 1987 Abandoned
Array ( [id] => 2415718 [patent_doc_number] => 04746634 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1988-05-24 [patent_title] => 'Solarization-resistant glass microsheet' [patent_app_type] => 1 [patent_app_number] => 7/055015 [patent_app_country] => US [patent_app_date] => 1987-05-28 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 1967 [patent_no_of_claims] => 2 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 122 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/746/04746634.pdf [firstpage_image] =>[orig_patent_app_number] => 055015 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/055015
Solarization-resistant glass microsheet May 27, 1987 Issued
07/054440 ABRASIVE GRITS FORMED OF CERAMIC, IMPREGNATION METHOD OF MAKING THE SAME AND PRODUCTS MADE THEREWITH May 26, 1987 Abandoned
Array ( [id] => 2447080 [patent_doc_number] => 04759820 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1988-07-26 [patent_title] => 'Process for making a polymer matrix containing non-centrosymmetric crystals' [patent_app_type] => 1 [patent_app_number] => 7/051910 [patent_app_country] => US [patent_app_date] => 1987-05-19 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 9 [patent_figures_cnt] => 9 [patent_no_of_words] => 3274 [patent_no_of_claims] => 5 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 79 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/759/04759820.pdf [firstpage_image] =>[orig_patent_app_number] => 051910 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/051910
Process for making a polymer matrix containing non-centrosymmetric crystals May 18, 1987 Issued
07/051964 SIALON CUTTING TOOL COMPOSITION May 18, 1987 Abandoned
Array ( [id] => 2554022 [patent_doc_number] => 04857107 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1989-08-15 [patent_title] => 'Gold inquartation process' [patent_app_type] => 1 [patent_app_number] => 7/082405 [patent_app_country] => US [patent_app_date] => 1987-05-18 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 2 [patent_figures_cnt] => 2 [patent_no_of_words] => 5592 [patent_no_of_claims] => 4 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 102 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/857/04857107.pdf [firstpage_image] =>[orig_patent_app_number] => 082405 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/082405
Gold inquartation process May 17, 1987 Issued
Array ( [id] => 2388713 [patent_doc_number] => 04764491 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1988-08-16 [patent_title] => 'Low temperature sintering of yttria stabilized zirconia with lanthana borate additions' [patent_app_type] => 1 [patent_app_number] => 7/048561 [patent_app_country] => US [patent_app_date] => 1987-05-11 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 2543 [patent_no_of_claims] => 8 [patent_no_of_ind_claims] => 8 [patent_words_short_claim] => 43 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/764/04764491.pdf [firstpage_image] =>[orig_patent_app_number] => 048561 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/048561
Low temperature sintering of yttria stabilized zirconia with lanthana borate additions May 10, 1987 Issued
07/047748 WELAN GUM IN CEMENT COMPOSITIONS May 6, 1987 Abandoned
07/046956 STRUCTURAL CERAMIC MATERIALS HAVING REFRACTORY INTERFACE LAYERS May 4, 1987 Abandoned
Array ( [id] => 2393486 [patent_doc_number] => 04769351 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1988-09-06 [patent_title] => 'Hydrothermal process for preparing zirconia-alumina base ultra-fine powders of high purity' [patent_app_type] => 1 [patent_app_number] => 7/045564 [patent_app_country] => US [patent_app_date] => 1987-05-04 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 1 [patent_figures_cnt] => 1 [patent_no_of_words] => 2043 [patent_no_of_claims] => 8 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 113 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/769/04769351.pdf [firstpage_image] =>[orig_patent_app_number] => 045564 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/045564
Hydrothermal process for preparing zirconia-alumina base ultra-fine powders of high purity May 3, 1987 Issued
Array ( [id] => 2680155 [patent_doc_number] => 05066624 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1991-11-19 [patent_title] => 'Refractory thixotropic vibration compound for the vibration lining of metallurgical vessels' [patent_app_type] => 1 [patent_app_number] => 7/041032 [patent_app_country] => US [patent_app_date] => 1987-04-23 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 2045 [patent_no_of_claims] => 9 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 194 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/066/05066624.pdf [firstpage_image] =>[orig_patent_app_number] => 041032 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/041032
Refractory thixotropic vibration compound for the vibration lining of metallurgical vessels Apr 22, 1987 Issued
Array ( [id] => 2384660 [patent_doc_number] => 04729973 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1988-03-08 [patent_title] => 'Process for producing ceramic composites from microcomposite particles having dispersed fibrous microstructures and the product thereof' [patent_app_type] => 1 [patent_app_number] => 7/035568 [patent_app_country] => US [patent_app_date] => 1987-04-07 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 6 [patent_figures_cnt] => 9 [patent_no_of_words] => 5154 [patent_no_of_claims] => 16 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 88 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/729/04729973.pdf [firstpage_image] =>[orig_patent_app_number] => 035568 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/035568
Process for producing ceramic composites from microcomposite particles having dispersed fibrous microstructures and the product thereof Apr 6, 1987 Issued
Array ( [id] => 2387832 [patent_doc_number] => 04772575 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1988-09-20 [patent_title] => 'Method of manufacturing sintered compact of cubic boron nitride' [patent_app_type] => 1 [patent_app_number] => 7/033170 [patent_app_country] => US [patent_app_date] => 1987-03-31 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 2 [patent_figures_cnt] => 4 [patent_no_of_words] => 5512 [patent_no_of_claims] => 7 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 131 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/772/04772575.pdf [firstpage_image] =>[orig_patent_app_number] => 033170 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/033170
Method of manufacturing sintered compact of cubic boron nitride Mar 30, 1987 Issued
Array ( [id] => 2546303 [patent_doc_number] => 04804645 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1989-02-14 [patent_title] => 'Ceramic material based on alumina and refractory hard constituents' [patent_app_type] => 1 [patent_app_number] => 7/030582 [patent_app_country] => US [patent_app_date] => 1987-03-27 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 4844 [patent_no_of_claims] => 9 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 162 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/804/04804645.pdf [firstpage_image] =>[orig_patent_app_number] => 030582 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/030582
Ceramic material based on alumina and refractory hard constituents Mar 26, 1987 Issued
Array ( [id] => 2487126 [patent_doc_number] => 04801566 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1989-01-31 [patent_title] => 'Low expansion ceramic' [patent_app_type] => 1 [patent_app_number] => 7/025700 [patent_app_country] => US [patent_app_date] => 1987-03-13 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 5 [patent_no_of_words] => 3309 [patent_no_of_claims] => 4 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 84 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/801/04801566.pdf [firstpage_image] =>[orig_patent_app_number] => 025700 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/025700
Low expansion ceramic Mar 12, 1987 Issued
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