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] => 2978741 [patent_doc_number] => 05250275 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1993-10-05 [patent_title] => 'Process for separating silicon compounds contained in a hydrochloric bath used for pickling' [patent_app_type] => 1 [patent_app_number] => 7/803207 [patent_app_country] => US [patent_app_date] => 1991-12-06 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 1 [patent_figures_cnt] => 1 [patent_no_of_words] => 1435 [patent_no_of_claims] => 8 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 118 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/250/05250275.pdf [firstpage_image] =>[orig_patent_app_number] => 803207 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/803207
Process for separating silicon compounds contained in a hydrochloric bath used for pickling Dec 5, 1991 Issued
07/804241 METHOD OF PRODUCING CELLULOSE DOPE Dec 4, 1991 Abandoned
Array ( [id] => 2911597 [patent_doc_number] => 05234495 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1993-08-10 [patent_title] => 'Process for the emulsification of polydimethyl siloxane oils, organomodified siloxane oils and organic oil using non-ionic surfactants' [patent_app_type] => 1 [patent_app_number] => 7/801517 [patent_app_country] => US [patent_app_date] => 1991-12-02 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 6546 [patent_no_of_claims] => 14 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 66 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/234/05234495.pdf [firstpage_image] =>[orig_patent_app_number] => 801517 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/801517
Process for the emulsification of polydimethyl siloxane oils, organomodified siloxane oils and organic oil using non-ionic surfactants Dec 1, 1991 Issued
Array ( [id] => 2967394 [patent_doc_number] => 05256195 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1993-10-26 [patent_title] => 'Bitumen emulsion, process for its preparation, breaking additive for use therein and the use of said bitument emulsion' [patent_app_type] => 1 [patent_app_number] => 7/801369 [patent_app_country] => US [patent_app_date] => 1991-12-02 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 3206 [patent_no_of_claims] => 14 [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/05/256/05256195.pdf [firstpage_image] =>[orig_patent_app_number] => 801369 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/801369
Bitumen emulsion, process for its preparation, breaking additive for use therein and the use of said bitument emulsion Dec 1, 1991 Issued
Array ( [id] => 2782607 [patent_doc_number] => 05164348 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1992-11-17 [patent_title] => 'Abrasive grits formed by ceramic impregnation method of making the same, and products made therewith' [patent_app_type] => 1 [patent_app_number] => 7/799867 [patent_app_country] => US [patent_app_date] => 1991-11-27 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 5759 [patent_no_of_claims] => 33 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 90 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/164/05164348.pdf [firstpage_image] =>[orig_patent_app_number] => 799867 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/799867
Abrasive grits formed by ceramic impregnation method of making the same, and products made therewith Nov 26, 1991 Issued
Array ( [id] => 3695908 [patent_doc_number] => 05595945 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1997-01-21 [patent_title] => 'Ceramic composite coating' [patent_app_type] => 1 [patent_app_number] => 7/796974 [patent_app_country] => US [patent_app_date] => 1991-11-25 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 2584 [patent_no_of_claims] => 12 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 116 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/595/05595945.pdf [firstpage_image] =>[orig_patent_app_number] => 796974 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/796974
Ceramic composite coating Nov 24, 1991 Issued
Array ( [id] => 2925556 [patent_doc_number] => 05188667 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1993-02-23 [patent_title] => 'Tungstic oxide-stannic oxide composite sol and method of preparing the same' [patent_app_type] => 1 [patent_app_number] => 7/795678 [patent_app_country] => US [patent_app_date] => 1991-11-21 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 13819 [patent_no_of_claims] => 19 [patent_no_of_ind_claims] => 8 [patent_words_short_claim] => 92 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/188/05188667.pdf [firstpage_image] =>[orig_patent_app_number] => 795678 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/795678
Tungstic oxide-stannic oxide composite sol and method of preparing the same Nov 20, 1991 Issued
Array ( [id] => 2966405 [patent_doc_number] => 05224989 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1993-07-06 [patent_title] => 'Film-forming dispersion for a protective coating of drug and food containing articles and objects' [patent_app_type] => 1 [patent_app_number] => 7/793454 [patent_app_country] => US [patent_app_date] => 1991-11-18 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 2725 [patent_no_of_claims] => 17 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 58 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/224/05224989.pdf [firstpage_image] =>[orig_patent_app_number] => 793454 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/793454
Film-forming dispersion for a protective coating of drug and food containing articles and objects Nov 17, 1991 Issued
07/794643 CERAMIC SUBSTRATE, CIRCUIT SUBSTRATE AND ELECTRONIC CIRCUIT SUBSTRATE BY USE THEREOF AND METHOD FOR PREPARING CERAMIC SUBSTRATE Nov 17, 1991 Abandoned
Array ( [id] => 2910354 [patent_doc_number] => 05205863 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1993-04-27 [patent_title] => 'Agricultural biodegradable plastics' [patent_app_type] => 1 [patent_app_number] => 7/791721 [patent_app_country] => US [patent_app_date] => 1991-11-14 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 1 [patent_figures_cnt] => 1 [patent_no_of_words] => 8254 [patent_no_of_claims] => 23 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 63 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/205/05205863.pdf [firstpage_image] =>[orig_patent_app_number] => 791721 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/791721
Agricultural biodegradable plastics Nov 13, 1991 Issued
Array ( [id] => 3064610 [patent_doc_number] => 05336328 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1994-08-09 [patent_title] => 'White waxy starch dextrins for use in adhesives' [patent_app_type] => 1 [patent_app_number] => 7/788257 [patent_app_country] => US [patent_app_date] => 1991-11-05 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 2541 [patent_no_of_claims] => 9 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 104 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/336/05336328.pdf [firstpage_image] =>[orig_patent_app_number] => 788257 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/788257
White waxy starch dextrins for use in adhesives Nov 4, 1991 Issued
07/787091 COMBUSTIBLE SLURRY FOR JOINING METALLIC OR CERAMIC SURFACES OR FOR COATING METALLIC, CERAMIC AND REFRACTORY SURFACES Nov 3, 1991 Abandoned
Array ( [id] => 2954204 [patent_doc_number] => 05273592 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1993-12-28 [patent_title] => 'Method of cleaning using partially fluorinated ethers having a tertiary structure' [patent_app_type] => 1 [patent_app_number] => 7/786473 [patent_app_country] => US [patent_app_date] => 1991-11-01 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 10041 [patent_no_of_claims] => 18 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 66 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/273/05273592.pdf [firstpage_image] =>[orig_patent_app_number] => 786473 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/786473
Method of cleaning using partially fluorinated ethers having a tertiary structure Oct 31, 1991 Issued
Array ( [id] => 2944879 [patent_doc_number] => 05221337 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1993-06-22 [patent_title] => 'SiO.sub.2 flatting agent, process for its production and its use' [patent_app_type] => 1 [patent_app_number] => 7/785900 [patent_app_country] => US [patent_app_date] => 1991-11-01 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 4010 [patent_no_of_claims] => 8 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 77 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/221/05221337.pdf [firstpage_image] =>[orig_patent_app_number] => 785900 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/785900
SiO.sub.2 flatting agent, process for its production and its use Oct 31, 1991 Issued
Array ( [id] => 2935395 [patent_doc_number] => 05254161 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1993-10-19 [patent_title] => 'Thermally stable nitrocellulose emulsions, solutions and coatings' [patent_app_type] => 1 [patent_app_number] => 7/781839 [patent_app_country] => US [patent_app_date] => 1991-10-24 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 1471 [patent_no_of_claims] => 13 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 33 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/254/05254161.pdf [firstpage_image] =>[orig_patent_app_number] => 781839 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/781839
Thermally stable nitrocellulose emulsions, solutions and coatings Oct 23, 1991 Issued
Array ( [id] => 2954397 [patent_doc_number] => 05264028 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1993-11-23 [patent_title] => 'Modified waxes and applications thereof' [patent_app_type] => 1 [patent_app_number] => 7/779946 [patent_app_country] => US [patent_app_date] => 1991-10-21 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 3277 [patent_no_of_claims] => 8 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 52 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/264/05264028.pdf [firstpage_image] =>[orig_patent_app_number] => 779946 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/779946
Modified waxes and applications thereof Oct 20, 1991 Issued
Array ( [id] => 2797636 [patent_doc_number] => 05147456 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1992-09-15 [patent_title] => 'Polyglycidol sulfated surfactants having antimicrobial activity' [patent_app_type] => 1 [patent_app_number] => 7/778548 [patent_app_country] => US [patent_app_date] => 1991-10-18 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 2520 [patent_no_of_claims] => 7 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 78 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/147/05147456.pdf [firstpage_image] =>[orig_patent_app_number] => 778548 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/778548
Polyglycidol sulfated surfactants having antimicrobial activity Oct 17, 1991 Issued
Array ( [id] => 3038527 [patent_doc_number] => 05286412 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1994-02-15 [patent_title] => 'Modified lignosulfonate dispersant for gypsum' [patent_app_type] => 1 [patent_app_number] => 7/777073 [patent_app_country] => US [patent_app_date] => 1991-10-16 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 5674 [patent_no_of_claims] => 17 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 56 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/286/05286412.pdf [firstpage_image] =>[orig_patent_app_number] => 777073 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/777073
Modified lignosulfonate dispersant for gypsum Oct 15, 1991 Issued
Array ( [id] => 2776050 [patent_doc_number] => 05164002 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1992-11-17 [patent_title] => 'Antistripping asphalt compositions and additives used therein' [patent_app_type] => 1 [patent_app_number] => 7/771566 [patent_app_country] => US [patent_app_date] => 1991-10-07 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 4150 [patent_no_of_claims] => 15 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 53 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/164/05164002.pdf [firstpage_image] =>[orig_patent_app_number] => 771566 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/771566
Antistripping asphalt compositions and additives used therein Oct 6, 1991 Issued
Array ( [id] => 2967545 [patent_doc_number] => 05207826 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1993-05-04 [patent_title] => 'Bacterial cellulose binding agent' [patent_app_type] => 1 [patent_app_number] => 7/771811 [patent_app_country] => US [patent_app_date] => 1991-10-07 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 7629 [patent_no_of_claims] => 16 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 80 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/207/05207826.pdf [firstpage_image] =>[orig_patent_app_number] => 771811 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/771811
Bacterial cellulose binding agent Oct 6, 1991 Issued
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