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] => 2408136 [patent_doc_number] => 04786328 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1988-11-22 [patent_title] => 'Magnesium phosphate cement systems' [patent_app_type] => 1 [patent_app_number] => 7/176656 [patent_app_country] => US [patent_app_date] => 1988-04-01 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 2864 [patent_no_of_claims] => 18 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 52 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/786/04786328.pdf [firstpage_image] =>[orig_patent_app_number] => 176656 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/176656
Magnesium phosphate cement systems Mar 31, 1988 Issued
Array ( [id] => 2625897 [patent_doc_number] => 04920085 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1990-04-24 [patent_title] => 'Silicon nitride sintered body and process for preparation thereof' [patent_app_type] => 1 [patent_app_number] => 7/176605 [patent_app_country] => US [patent_app_date] => 1988-04-01 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 4 [patent_no_of_words] => 12957 [patent_no_of_claims] => 12 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 129 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/920/04920085.pdf [firstpage_image] =>[orig_patent_app_number] => 176605 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/176605
Silicon nitride sintered body and process for preparation thereof Mar 31, 1988 Issued
Array ( [id] => 2478327 [patent_doc_number] => 04882237 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1989-11-21 [patent_title] => 'Aluminum-ceramic complex material' [patent_app_type] => 1 [patent_app_number] => 7/167571 [patent_app_country] => US [patent_app_date] => 1988-03-14 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 1 [patent_figures_cnt] => 3 [patent_no_of_words] => 2830 [patent_no_of_claims] => 11 [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/04/882/04882237.pdf [firstpage_image] =>[orig_patent_app_number] => 167571 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/167571
Aluminum-ceramic complex material Mar 13, 1988 Issued
Array ( [id] => 2491491 [patent_doc_number] => 04843043 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1989-06-27 [patent_title] => 'Method for manufacturing a sintered body with high density' [patent_app_type] => 1 [patent_app_number] => 7/163024 [patent_app_country] => US [patent_app_date] => 1988-03-02 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 1 [patent_figures_cnt] => 2 [patent_no_of_words] => 4359 [patent_no_of_claims] => 25 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 110 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/843/04843043.pdf [firstpage_image] =>[orig_patent_app_number] => 163024 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/163024
Method for manufacturing a sintered body with high density Mar 1, 1988 Issued
Array ( [id] => 2658047 [patent_doc_number] => 04978640 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1990-12-18 [patent_title] => 'Dispersion strengthened composite' [patent_app_type] => 1 [patent_app_number] => 7/159781 [patent_app_country] => US [patent_app_date] => 1988-02-24 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 3432 [patent_no_of_claims] => 21 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 20 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/978/04978640.pdf [firstpage_image] =>[orig_patent_app_number] => 159781 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/159781
Dispersion strengthened composite Feb 23, 1988 Issued
Array ( [id] => 2589722 [patent_doc_number] => 04963679 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1990-10-16 [patent_title] => 'Process for preparing bis (3,5-dioxopiperazinyl) alkanes or alkenes' [patent_app_type] => 1 [patent_app_number] => 7/157195 [patent_app_country] => US [patent_app_date] => 1988-02-17 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 3213 [patent_no_of_claims] => 10 [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/04/963/04963679.pdf [firstpage_image] =>[orig_patent_app_number] => 157195 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/157195
Process for preparing bis (3,5-dioxopiperazinyl) alkanes or alkenes Feb 16, 1988 Issued
07/158044 SILICON NITRIDE SINTERED BODY AND A METHOD OF PRODUCING THE SAME Feb 15, 1988 Abandoned
Array ( [id] => 2482735 [patent_doc_number] => 04828619 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1989-05-09 [patent_title] => 'Air-entraining agent for flyash cement composition' [patent_app_type] => 1 [patent_app_number] => 7/155502 [patent_app_country] => US [patent_app_date] => 1988-02-12 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 7911 [patent_no_of_claims] => 10 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 534 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/828/04828619.pdf [firstpage_image] =>[orig_patent_app_number] => 155502 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/155502
Air-entraining agent for flyash cement composition Feb 11, 1988 Issued
Array ( [id] => 2553588 [patent_doc_number] => 04836856 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1989-06-06 [patent_title] => 'Stabilizing road base composition and method for preparing same' [patent_app_type] => 1 [patent_app_number] => 7/155373 [patent_app_country] => US [patent_app_date] => 1988-02-12 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 3244 [patent_no_of_claims] => 17 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 100 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/836/04836856.pdf [firstpage_image] =>[orig_patent_app_number] => 155373 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/155373
Stabilizing road base composition and method for preparing same Feb 11, 1988 Issued
Array ( [id] => 2482477 [patent_doc_number] => 04866017 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1989-09-12 [patent_title] => 'Dielectric ceramic composition of matter' [patent_app_type] => 1 [patent_app_number] => 7/158026 [patent_app_country] => US [patent_app_date] => 1988-02-12 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 2493 [patent_no_of_claims] => 2 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 126 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/866/04866017.pdf [firstpage_image] =>[orig_patent_app_number] => 158026 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/158026
Dielectric ceramic composition of matter Feb 11, 1988 Issued
Array ( [id] => 2482440 [patent_doc_number] => 04866015 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1989-09-12 [patent_title] => 'Silica brick and process for producing same' [patent_app_type] => 1 [patent_app_number] => 7/155214 [patent_app_country] => US [patent_app_date] => 1988-02-12 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 1 [patent_figures_cnt] => 3 [patent_no_of_words] => 4436 [patent_no_of_claims] => 21 [patent_no_of_ind_claims] => 6 [patent_words_short_claim] => 29 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/866/04866015.pdf [firstpage_image] =>[orig_patent_app_number] => 155214 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/155214
Silica brick and process for producing same Feb 11, 1988 Issued
Array ( [id] => 2638760 [patent_doc_number] => 04979992 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1990-12-25 [patent_title] => 'Compact reinforced composite' [patent_app_type] => 1 [patent_app_number] => 7/159589 [patent_app_country] => US [patent_app_date] => 1988-02-09 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 20 [patent_figures_cnt] => 65 [patent_no_of_words] => 44403 [patent_no_of_claims] => 61 [patent_no_of_ind_claims] => 4 [patent_words_short_claim] => 170 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/979/04979992.pdf [firstpage_image] =>[orig_patent_app_number] => 159589 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/159589
Compact reinforced composite Feb 8, 1988 Issued
Array ( [id] => 2472971 [patent_doc_number] => 04886767 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1989-12-12 [patent_title] => 'Silicon nitride-ceramic and a manufacturing method therof' [patent_app_type] => 1 [patent_app_number] => 7/152716 [patent_app_country] => US [patent_app_date] => 1988-02-05 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 2 [patent_figures_cnt] => 2 [patent_no_of_words] => 2123 [patent_no_of_claims] => 7 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 110 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/886/04886767.pdf [firstpage_image] =>[orig_patent_app_number] => 152716 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/152716
Silicon nitride-ceramic and a manufacturing method therof Feb 4, 1988 Issued
Array ( [id] => 2744040 [patent_doc_number] => 05015530 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1991-05-14 [patent_title] => 'High expansion, lithium corrosion resistant sealing glasses' [patent_app_type] => 1 [patent_app_number] => 7/146560 [patent_app_country] => US [patent_app_date] => 1988-01-21 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 2535 [patent_no_of_claims] => 9 [patent_no_of_ind_claims] => 9 [patent_words_short_claim] => 51 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/015/05015530.pdf [firstpage_image] =>[orig_patent_app_number] => 146560 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/146560
High expansion, lithium corrosion resistant sealing glasses Jan 20, 1988 Issued
Array ( [id] => 2666825 [patent_doc_number] => 04904624 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1990-02-27 [patent_title] => 'Silicon nitride with improved high temperature strength' [patent_app_type] => 1 [patent_app_number] => 7/144458 [patent_app_country] => US [patent_app_date] => 1988-01-15 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 4150 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 4 [patent_words_short_claim] => 51 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/904/04904624.pdf [firstpage_image] =>[orig_patent_app_number] => 144458 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/144458
Silicon nitride with improved high temperature strength Jan 14, 1988 Issued
07/144565 CEMENTITIOUS COMPOSITE AND PROCESS OF MAKING SAME Jan 14, 1988 Abandoned
Array ( [id] => 2423030 [patent_doc_number] => 04780433 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1988-10-25 [patent_title] => 'Insulating ceramic building material and method with fired clay and garbage mixture' [patent_app_type] => 1 [patent_app_number] => 7/143587 [patent_app_country] => US [patent_app_date] => 1988-01-13 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 1 [patent_figures_cnt] => 2 [patent_no_of_words] => 2706 [patent_no_of_claims] => 5 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 164 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/780/04780433.pdf [firstpage_image] =>[orig_patent_app_number] => 143587 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/143587
Insulating ceramic building material and method with fired clay and garbage mixture Jan 12, 1988 Issued
Array ( [id] => 2505233 [patent_doc_number] => 04851047 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1989-07-25 [patent_title] => 'Process for preparing water-repellent articles from gypsum powder containing hydrophobic agents' [patent_app_type] => 1 [patent_app_number] => 7/141743 [patent_app_country] => US [patent_app_date] => 1988-01-11 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 3232 [patent_no_of_claims] => 4 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 63 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/851/04851047.pdf [firstpage_image] =>[orig_patent_app_number] => 141743 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/141743
Process for preparing water-repellent articles from gypsum powder containing hydrophobic agents Jan 10, 1988 Issued
Array ( [id] => 2475304 [patent_doc_number] => 04879291 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1989-11-07 [patent_title] => 'N-alkyl-2,6-dimethylmorpholinocarboxamide salts, their preparation, and their use as fungicides' [patent_app_type] => 1 [patent_app_number] => 7/139797 [patent_app_country] => US [patent_app_date] => 1987-12-30 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 8152 [patent_no_of_claims] => 7 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 83 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/879/04879291.pdf [firstpage_image] =>[orig_patent_app_number] => 139797 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/139797
N-alkyl-2,6-dimethylmorpholinocarboxamide salts, their preparation, and their use as fungicides Dec 29, 1987 Issued
07/136036 STABLE LYOPHILIZED FORM OF (S)-(+)-BIS-4,4'-(1-METHYL-1,2-ETHANEDIYL) 2,6-PIPERAZINEDIONE AND SOLUTIONS THEREOF Dec 20, 1987 Abandoned
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