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
Array ( [id] => 2732472 [patent_doc_number] => 05039629 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1991-08-13 [patent_title] => 'Hybrid ceramic composition and process for its manufacture' [patent_app_type] => 1 [patent_app_number] => 7/353541 [patent_app_country] => US [patent_app_date] => 1989-05-18 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 3930 [patent_no_of_claims] => 25 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 112 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/039/05039629.pdf [firstpage_image] =>[orig_patent_app_number] => 353541 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/353541
Hybrid ceramic composition and process for its manufacture May 17, 1989 Issued
Array ( [id] => 2595324 [patent_doc_number] => 04911757 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1990-03-27 [patent_title] => 'Process for chemical stabilization of heavy metal bearing dusts and sludges' [patent_app_type] => 1 [patent_app_number] => 7/349006 [patent_app_country] => US [patent_app_date] => 1989-05-09 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 5122 [patent_no_of_claims] => 11 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 97 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/911/04911757.pdf [firstpage_image] =>[orig_patent_app_number] => 349006 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/349006
Process for chemical stabilization of heavy metal bearing dusts and sludges May 8, 1989 Issued
07/348851 CONCRETE COMPOSITION CONTAINING A SUPERFLUIDIFYING ADDITIVE May 7, 1989 Abandoned
Array ( [id] => 2630051 [patent_doc_number] => 04909848 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1990-03-20 [patent_title] => 'Dry grouting agent and method of producing the same' [patent_app_type] => 1 [patent_app_number] => 7/347275 [patent_app_country] => US [patent_app_date] => 1989-05-04 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 2784 [patent_no_of_claims] => 9 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 53 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/909/04909848.pdf [firstpage_image] =>[orig_patent_app_number] => 347275 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/347275
Dry grouting agent and method of producing the same May 3, 1989 Issued
Array ( [id] => 2522522 [patent_doc_number] => 04880755 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1989-11-14 [patent_title] => 'Sialon cutting tool composition' [patent_app_type] => 1 [patent_app_number] => 7/333716 [patent_app_country] => US [patent_app_date] => 1989-04-03 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 2 [patent_figures_cnt] => 4 [patent_no_of_words] => 3777 [patent_no_of_claims] => 52 [patent_no_of_ind_claims] => 7 [patent_words_short_claim] => 47 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/880/04880755.pdf [firstpage_image] =>[orig_patent_app_number] => 333716 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/333716
Sialon cutting tool composition Apr 2, 1989 Issued
07/327607 AQUEOUS EMULSIONS OF POLYISOCYANATES AND PROCESS FOR PREPARING THEM Mar 22, 1989 Abandoned
Array ( [id] => 2702980 [patent_doc_number] => 05061320 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1991-10-29 [patent_title] => 'Sweetener composition' [patent_app_type] => 1 [patent_app_number] => 7/327760 [patent_app_country] => US [patent_app_date] => 1989-03-23 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 5 [patent_no_of_words] => 3674 [patent_no_of_claims] => 13 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 15 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/061/05061320.pdf [firstpage_image] =>[orig_patent_app_number] => 327760 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/327760
Sweetener composition Mar 22, 1989 Issued
07/327484 PRECURSOR COATING COMPOSITIONS SUITABLE FOR SPRAYING WITH SUPERCRITICAL FLUIDS AS DILUENTS Mar 21, 1989 Abandoned
07/327274 PRECURSOR COATING COMPOSITIONS CONTAINING WATER AND AN ORGANIC COUPLING SOLVENT SUITABLE FOR SPRAYING WITH SUPERCRITICAL FLUIDS AS DILUENTS Mar 21, 1989 Abandoned
Array ( [id] => 2580360 [patent_doc_number] => 04963190 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1990-10-16 [patent_title] => 'Dispersant composition for cement' [patent_app_type] => 1 [patent_app_number] => 7/325382 [patent_app_country] => US [patent_app_date] => 1989-03-17 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 4310 [patent_no_of_claims] => 10 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 95 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/963/04963190.pdf [firstpage_image] =>[orig_patent_app_number] => 325382 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/325382
Dispersant composition for cement Mar 16, 1989 Issued
07/328198 METHOD OF PRODUCING A SOLID SECONDARY RAW MATERIAL CONTAINING CALCIUM SULFATE Mar 15, 1989 Abandoned
Array ( [id] => 2602839 [patent_doc_number] => 04948765 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1990-08-14 [patent_title] => 'Refractory coating for making refractory shells' [patent_app_type] => 1 [patent_app_number] => 7/322315 [patent_app_country] => US [patent_app_date] => 1989-03-10 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 2182 [patent_no_of_claims] => 14 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 69 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/948/04948765.pdf [firstpage_image] =>[orig_patent_app_number] => 322315 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/322315
Refractory coating for making refractory shells Mar 9, 1989 Issued
07/320858 FLAME-RESISTANT GLASS FIBERS, STRUCTURES EMPLOYING SUCH GLASS FIBERS AND PROCESS FOR FORMING SAME Mar 7, 1989 Abandoned
Array ( [id] => 2693015 [patent_doc_number] => 04988388 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1991-01-29 [patent_title] => 'Free-flowing guayule resin and bagasse mixtures and their use as fuel or soil amendent' [patent_app_type] => 1 [patent_app_number] => 7/318270 [patent_app_country] => US [patent_app_date] => 1989-03-03 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 4821 [patent_no_of_claims] => 3 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 71 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/988/04988388.pdf [firstpage_image] =>[orig_patent_app_number] => 318270 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/318270
Free-flowing guayule resin and bagasse mixtures and their use as fuel or soil amendent Mar 2, 1989 Issued
07/318468 HIGH TEMPERATURE LUBRICANT CONTAINING CARBOXYLATED STYRENE-BUTADIENE LATEX Feb 27, 1989 Abandoned
Array ( [id] => 2688080 [patent_doc_number] => 04990191 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1991-02-05 [patent_title] => 'Aminated sulfonated or sulfomethylated lignins as cement fluid loss control additives' [patent_app_type] => 1 [patent_app_number] => 7/312497 [patent_app_country] => US [patent_app_date] => 1989-02-21 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 2956 [patent_no_of_claims] => 4 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 135 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/990/04990191.pdf [firstpage_image] =>[orig_patent_app_number] => 312497 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/312497
Aminated sulfonated or sulfomethylated lignins as cement fluid loss control additives Feb 20, 1989 Issued
07/312959 METHOD OF PREPARING CERAMIC MICROSPHERES Feb 20, 1989 Abandoned
Array ( [id] => 2671721 [patent_doc_number] => 04954643 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1990-09-04 [patent_title] => 'Process for preparation of perfluoropropane oxide' [patent_app_type] => 1 [patent_app_number] => 7/306262 [patent_app_country] => US [patent_app_date] => 1989-01-31 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 2600 [patent_no_of_claims] => 12 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 117 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/954/04954643.pdf [firstpage_image] =>[orig_patent_app_number] => 306262 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/306262
Process for preparation of perfluoropropane oxide Jan 30, 1989 Issued
Array ( [id] => 2632543 [patent_doc_number] => 04952539 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1990-08-28 [patent_title] => 'Method for the manufacture of transparent aluminum oxide ceramic' [patent_app_type] => 1 [patent_app_number] => 7/302189 [patent_app_country] => US [patent_app_date] => 1989-01-23 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 4034 [patent_no_of_claims] => 12 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 101 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/952/04952539.pdf [firstpage_image] =>[orig_patent_app_number] => 302189 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/302189
Method for the manufacture of transparent aluminum oxide ceramic Jan 22, 1989 Issued
Array ( [id] => 2632543 [patent_doc_number] => 04952539 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1990-08-28 [patent_title] => 'Method for the manufacture of transparent aluminum oxide ceramic' [patent_app_type] => 1 [patent_app_number] => 7/302189 [patent_app_country] => US [patent_app_date] => 1989-01-23 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 4034 [patent_no_of_claims] => 12 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 101 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/952/04952539.pdf [firstpage_image] =>[orig_patent_app_number] => 302189 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/302189
Method for the manufacture of transparent aluminum oxide ceramic Jan 22, 1989 Issued
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