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] => 3085677 [patent_doc_number] => 05312483 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1994-05-17 [patent_title] => 'Adhesion of asphalt to aggregates' [patent_app_type] => 1 [patent_app_number] => 7/815835 [patent_app_country] => US [patent_app_date] => 1991-12-27 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 4 [patent_no_of_words] => 5128 [patent_no_of_claims] => 11 [patent_no_of_ind_claims] => 5 [patent_words_short_claim] => 123 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/312/05312483.pdf [firstpage_image] =>[orig_patent_app_number] => 815835 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/815835
Adhesion of asphalt to aggregates Dec 26, 1991 Issued
07/776242 PRODUCTION OF ACID SOLUBLE TITANIA Dec 26, 1991 Abandoned
Array ( [id] => 2944419 [patent_doc_number] => 05262136 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1993-11-16 [patent_title] => 'Recovery of gold and silver from complex refractory sulphide ores by cyanidisation and oxidation with peroxides' [patent_app_type] => 1 [patent_app_number] => 7/778871 [patent_app_country] => US [patent_app_date] => 1991-12-24 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 2059 [patent_no_of_claims] => 7 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 91 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/262/05262136.pdf [firstpage_image] =>[orig_patent_app_number] => 778871 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/778871
Recovery of gold and silver from complex refractory sulphide ores by cyanidisation and oxidation with peroxides Dec 23, 1991 Issued
Array ( [id] => 2941482 [patent_doc_number] => 05180428 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1993-01-19 [patent_title] => 'In situ rejuvenation of aged and cracked asphalt pavement' [patent_app_type] => 1 [patent_app_number] => 7/814066 [patent_app_country] => US [patent_app_date] => 1991-12-24 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 1959 [patent_no_of_claims] => 4 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 153 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/180/05180428.pdf [firstpage_image] =>[orig_patent_app_number] => 814066 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/814066
In situ rejuvenation of aged and cracked asphalt pavement Dec 23, 1991 Issued
Array ( [id] => 3036152 [patent_doc_number] => 05286289 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1994-02-15 [patent_title] => 'Combination iron stain and coating for masonry concrete and like material and method of forming the same' [patent_app_type] => 1 [patent_app_number] => 7/811659 [patent_app_country] => US [patent_app_date] => 1991-12-23 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 2489 [patent_no_of_claims] => 8 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 221 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/286/05286289.pdf [firstpage_image] =>[orig_patent_app_number] => 811659 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/811659
Combination iron stain and coating for masonry concrete and like material and method of forming the same Dec 22, 1991 Issued
Array ( [id] => 2978758 [patent_doc_number] => 05250276 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1993-10-05 [patent_title] => 'Method for preparing ferric chloride' [patent_app_type] => 1 [patent_app_number] => 7/811313 [patent_app_country] => US [patent_app_date] => 1991-12-20 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 1 [patent_figures_cnt] => 1 [patent_no_of_words] => 1685 [patent_no_of_claims] => 7 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 110 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/250/05250276.pdf [firstpage_image] =>[orig_patent_app_number] => 811313 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/811313
Method for preparing ferric chloride Dec 19, 1991 Issued
Array ( [id] => 2910369 [patent_doc_number] => 05205864 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1993-04-27 [patent_title] => 'Inorganic based strippable coatings for isolating hazardous materials and method for making and using the same' [patent_app_type] => 1 [patent_app_number] => 7/811362 [patent_app_country] => US [patent_app_date] => 1991-12-20 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 1655 [patent_no_of_claims] => 7 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 77 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/205/05205864.pdf [firstpage_image] =>[orig_patent_app_number] => 811362 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/811362
Inorganic based strippable coatings for isolating hazardous materials and method for making and using the same Dec 19, 1991 Issued
Array ( [id] => 3796873 [patent_doc_number] => 05830266 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1998-11-03 [patent_title] => 'Slow burning alcohol-free nitrocellulose' [patent_app_type] => 1 [patent_app_number] => 7/811336 [patent_app_country] => US [patent_app_date] => 1991-12-20 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 1931 [patent_no_of_claims] => 12 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 60 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/830/05830266.pdf [firstpage_image] =>[orig_patent_app_number] => 811336 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/811336
Slow burning alcohol-free nitrocellulose Dec 19, 1991 Issued
Array ( [id] => 2999709 [patent_doc_number] => 05330569 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1994-07-19 [patent_title] => 'Industrial asphalts' [patent_app_type] => 1 [patent_app_number] => 7/809655 [patent_app_country] => US [patent_app_date] => 1991-12-18 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 1 [patent_figures_cnt] => 1 [patent_no_of_words] => 7214 [patent_no_of_claims] => 9 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 144 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/330/05330569.pdf [firstpage_image] =>[orig_patent_app_number] => 809655 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/809655
Industrial asphalts Dec 17, 1991 Issued
Array ( [id] => 2938504 [patent_doc_number] => 05254320 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1993-10-19 [patent_title] => 'Method for roasting sulphide ores' [patent_app_type] => 1 [patent_app_number] => 7/808720 [patent_app_country] => US [patent_app_date] => 1991-12-17 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 3141 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 140 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/254/05254320.pdf [firstpage_image] =>[orig_patent_app_number] => 808720 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/808720
Method for roasting sulphide ores Dec 16, 1991 Issued
Array ( [id] => 2960481 [patent_doc_number] => 05201946 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1993-04-13 [patent_title] => 'Liquid spray mask and method' [patent_app_type] => 1 [patent_app_number] => 7/808737 [patent_app_country] => US [patent_app_date] => 1991-12-17 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 2 [patent_figures_cnt] => 5 [patent_no_of_words] => 4874 [patent_no_of_claims] => 1 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 159 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/201/05201946.pdf [firstpage_image] =>[orig_patent_app_number] => 808737 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/808737
Liquid spray mask and method Dec 16, 1991 Issued
07/809210 ZINC SULFIDE BODIES HAVING IMPROVED OPTICAL TRANSMITTANCE CHARACTERISTICS AND MECHANICAL CHARACTERISTICS Dec 15, 1991 Abandoned
Array ( [id] => 2905263 [patent_doc_number] => 05215945 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1993-06-01 [patent_title] => 'High hardness, wear resistant materials' [patent_app_type] => 1 [patent_app_number] => 7/807806 [patent_app_country] => US [patent_app_date] => 1991-12-13 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 4 [patent_no_of_words] => 13904 [patent_no_of_claims] => 23 [patent_no_of_ind_claims] => 11 [patent_words_short_claim] => 113 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/215/05215945.pdf [firstpage_image] =>[orig_patent_app_number] => 807806 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/807806
High hardness, wear resistant materials Dec 12, 1991 Issued
Array ( [id] => 2975355 [patent_doc_number] => 05256608 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1993-10-26 [patent_title] => 'High hardness, wear resistant materials' [patent_app_type] => 1 [patent_app_number] => 7/806984 [patent_app_country] => US [patent_app_date] => 1991-12-13 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 4 [patent_no_of_words] => 13919 [patent_no_of_claims] => 33 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 165 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/256/05256608.pdf [firstpage_image] =>[orig_patent_app_number] => 806984 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/806984
High hardness, wear resistant materials Dec 12, 1991 Issued
Array ( [id] => 2941201 [patent_doc_number] => 05223460 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1993-06-29 [patent_title] => 'High hardness, wear resistant materials' [patent_app_type] => 1 [patent_app_number] => 7/806983 [patent_app_country] => US [patent_app_date] => 1991-12-13 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 4 [patent_no_of_words] => 13921 [patent_no_of_claims] => 3 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 129 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/223/05223460.pdf [firstpage_image] =>[orig_patent_app_number] => 806983 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/806983
High hardness, wear resistant materials Dec 12, 1991 Issued
Array ( [id] => 2944820 [patent_doc_number] => 05223652 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1993-06-29 [patent_title] => 'Key and keyboard' [patent_app_type] => 1 [patent_app_number] => 7/804966 [patent_app_country] => US [patent_app_date] => 1991-12-11 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 1 [patent_figures_cnt] => 4 [patent_no_of_words] => 2098 [patent_no_of_claims] => 8 [patent_no_of_ind_claims] => 6 [patent_words_short_claim] => 86 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/223/05223652.pdf [firstpage_image] =>[orig_patent_app_number] => 804966 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/804966
Key and keyboard Dec 10, 1991 Issued
Array ( [id] => 3022633 [patent_doc_number] => 05342449 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1994-08-30 [patent_title] => 'Process for the decontamination of toxic, heavy-metal containing soils' [patent_app_type] => 1 [patent_app_number] => 7/804065 [patent_app_country] => US [patent_app_date] => 1991-12-09 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 3 [patent_no_of_words] => 9147 [patent_no_of_claims] => 64 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 150 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/342/05342449.pdf [firstpage_image] =>[orig_patent_app_number] => 804065 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/804065
Process for the decontamination of toxic, heavy-metal containing soils Dec 8, 1991 Issued
Array ( [id] => 3084224 [patent_doc_number] => 05290351 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1994-03-01 [patent_title] => 'Composition for rendering waste substances harmless' [patent_app_type] => 1 [patent_app_number] => 7/804310 [patent_app_country] => US [patent_app_date] => 1991-12-09 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 2379 [patent_no_of_claims] => 13 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 39 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/290/05290351.pdf [firstpage_image] =>[orig_patent_app_number] => 804310 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/804310
Composition for rendering waste substances harmless Dec 8, 1991 Issued
Array ( [id] => 3011332 [patent_doc_number] => 05288317 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1994-02-22 [patent_title] => 'Dissolving method' [patent_app_type] => 1 [patent_app_number] => 7/803969 [patent_app_country] => US [patent_app_date] => 1991-12-09 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 1 [patent_figures_cnt] => 4 [patent_no_of_words] => 3493 [patent_no_of_claims] => 5 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 100 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/288/05288317.pdf [firstpage_image] =>[orig_patent_app_number] => 803969 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/803969
Dissolving method Dec 8, 1991 Issued
Array ( [id] => 2933047 [patent_doc_number] => 05223035 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1993-06-29 [patent_title] => 'Pozzolan blends' [patent_app_type] => 1 [patent_app_number] => 7/804359 [patent_app_country] => US [patent_app_date] => 1991-12-09 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 3548 [patent_no_of_claims] => 15 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 208 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/223/05223035.pdf [firstpage_image] =>[orig_patent_app_number] => 804359 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/804359
Pozzolan blends Dec 8, 1991 Issued
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