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] => 3410074 [patent_doc_number] => 05393338 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1995-02-28 [patent_title] => 'Cationic compounds useful as drainage aids and stabilizers for rosin-based sizing agents' [patent_app_type] => 1 [patent_app_number] => 7/998212 [patent_app_country] => US [patent_app_date] => 1992-12-30 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 9641 [patent_no_of_claims] => 24 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 54 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/393/05393338.pdf [firstpage_image] =>[orig_patent_app_number] => 998212 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/998212
Cationic compounds useful as drainage aids and stabilizers for rosin-based sizing agents Dec 29, 1992 Issued
Array ( [id] => 3087894 [patent_doc_number] => 05312604 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1994-05-17 [patent_title] => 'Work-up of waste materials from barium or strontium sulfide leaching' [patent_app_type] => 1 [patent_app_number] => 7/988020 [patent_app_country] => US [patent_app_date] => 1992-12-09 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 2541 [patent_no_of_claims] => 8 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 188 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/312/05312604.pdf [firstpage_image] =>[orig_patent_app_number] => 988020 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/988020
Work-up of waste materials from barium or strontium sulfide leaching Dec 8, 1992 Issued
Array ( [id] => 3105643 [patent_doc_number] => 05395439 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1995-03-07 [patent_title] => 'Bitumen based mixture for coating surfaces' [patent_app_type] => 1 [patent_app_number] => 7/987704 [patent_app_country] => US [patent_app_date] => 1992-12-09 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 2 [patent_figures_cnt] => 4 [patent_no_of_words] => 4587 [patent_no_of_claims] => 5 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 78 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/395/05395439.pdf [firstpage_image] =>[orig_patent_app_number] => 987704 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/987704
Bitumen based mixture for coating surfaces Dec 8, 1992 Issued
Array ( [id] => 3042948 [patent_doc_number] => 05324353 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1994-06-28 [patent_title] => 'Zinc sulfide bodies having improved optical transmittance characteristics and mechanical characteristics' [patent_app_type] => 1 [patent_app_number] => 7/985531 [patent_app_country] => US [patent_app_date] => 1992-12-03 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 2 [patent_figures_cnt] => 5 [patent_no_of_words] => 1791 [patent_no_of_claims] => 13 [patent_no_of_ind_claims] => 6 [patent_words_short_claim] => 17 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/324/05324353.pdf [firstpage_image] =>[orig_patent_app_number] => 985531 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/985531
Zinc sulfide bodies having improved optical transmittance characteristics and mechanical characteristics Dec 2, 1992 Issued
Array ( [id] => 3058806 [patent_doc_number] => 05294249 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1994-03-15 [patent_title] => 'Blendpolymers' [patent_app_type] => 1 [patent_app_number] => 7/974337 [patent_app_country] => US [patent_app_date] => 1992-11-10 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 3700 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 106 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/294/05294249.pdf [firstpage_image] =>[orig_patent_app_number] => 974337 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/974337
Blendpolymers Nov 9, 1992 Issued
Array ( [id] => 3056831 [patent_doc_number] => 05307046 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1994-04-26 [patent_title] => 'Passivating coating for metal oxide varistors' [patent_app_type] => 1 [patent_app_number] => 7/972802 [patent_app_country] => US [patent_app_date] => 1992-11-06 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 1 [patent_figures_cnt] => 1 [patent_no_of_words] => 2005 [patent_no_of_claims] => 4 [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/05/307/05307046.pdf [firstpage_image] =>[orig_patent_app_number] => 972802 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/972802
Passivating coating for metal oxide varistors Nov 5, 1992 Issued
Array ( [id] => 3000022 [patent_doc_number] => 05354372 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1994-10-11 [patent_title] => 'Undercoating composition' [patent_app_type] => 1 [patent_app_number] => 7/972103 [patent_app_country] => US [patent_app_date] => 1992-11-05 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 3619 [patent_no_of_claims] => 11 [patent_no_of_ind_claims] => 6 [patent_words_short_claim] => 32 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/354/05354372.pdf [firstpage_image] =>[orig_patent_app_number] => 972103 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/972103
Undercoating composition Nov 4, 1992 Issued
Array ( [id] => 2886303 [patent_doc_number] => 05270023 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1993-12-14 [patent_title] => 'Process for producing sodium carbonate, sodium bicarbonate and associated compounds' [patent_app_type] => 1 [patent_app_number] => 7/969061 [patent_app_country] => US [patent_app_date] => 1992-10-30 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 3 [patent_no_of_words] => 2831 [patent_no_of_claims] => 6 [patent_no_of_ind_claims] => 4 [patent_words_short_claim] => 180 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/270/05270023.pdf [firstpage_image] =>[orig_patent_app_number] => 969061 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/969061
Process for producing sodium carbonate, sodium bicarbonate and associated compounds Oct 29, 1992 Issued
Array ( [id] => 2889937 [patent_doc_number] => 05271911 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1993-12-21 [patent_title] => 'Method for removing potassium from molybdenum trioxide' [patent_app_type] => 1 [patent_app_number] => 7/968902 [patent_app_country] => US [patent_app_date] => 1992-10-30 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 2042 [patent_no_of_claims] => 5 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 79 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/271/05271911.pdf [firstpage_image] =>[orig_patent_app_number] => 968902 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/968902
Method for removing potassium from molybdenum trioxide Oct 29, 1992 Issued
Array ( [id] => 2999675 [patent_doc_number] => 05330567 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1994-07-19 [patent_title] => 'Process and arrangement for preparing a solution of cellulose' [patent_app_type] => 1 [patent_app_number] => 7/998774 [patent_app_country] => US [patent_app_date] => 1992-10-28 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 1 [patent_figures_cnt] => 2 [patent_no_of_words] => 2482 [patent_no_of_claims] => 9 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 259 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/330/05330567.pdf [firstpage_image] =>[orig_patent_app_number] => 998774 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/998774
Process and arrangement for preparing a solution of cellulose Oct 27, 1992 Issued
Array ( [id] => 2887166 [patent_doc_number] => 05271767 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1993-12-21 [patent_title] => 'Odor-free hot-mix asphalt composition' [patent_app_type] => 1 [patent_app_number] => 7/961495 [patent_app_country] => US [patent_app_date] => 1992-10-16 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 6263 [patent_no_of_claims] => 13 [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/05/271/05271767.pdf [firstpage_image] =>[orig_patent_app_number] => 961495 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/961495
Odor-free hot-mix asphalt composition Oct 15, 1992 Issued
07/960920 AGGREGATES AND STRUCTURES INCLUDING SAME Oct 12, 1992 Abandoned
Array ( [id] => 3082067 [patent_doc_number] => 05277883 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1994-01-11 [patent_title] => 'Recovery of metal values from aqueous solutions' [patent_app_type] => 1 [patent_app_number] => 7/959530 [patent_app_country] => US [patent_app_date] => 1992-10-13 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 3479 [patent_no_of_claims] => 10 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 146 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/277/05277883.pdf [firstpage_image] =>[orig_patent_app_number] => 959530 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/959530
Recovery of metal values from aqueous solutions Oct 12, 1992 Issued
07/950700 METHOD AND DEVICE FOR PICKLING THE EDGE PORTIONS OF A SHEET IMMERSED IN A REACTIVE SOLUTION, IN PARTICULAR A HOT ROLLED SHEET Sep 24, 1992 Abandoned
Array ( [id] => 2926205 [patent_doc_number] => 05246488 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1993-09-21 [patent_title] => 'Temporary rust resisting coating composition' [patent_app_type] => 1 [patent_app_number] => 7/946163 [patent_app_country] => US [patent_app_date] => 1992-09-17 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 2420 [patent_no_of_claims] => 8 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 236 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/246/05246488.pdf [firstpage_image] =>[orig_patent_app_number] => 946163 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/946163
Temporary rust resisting coating composition Sep 16, 1992 Issued
Array ( [id] => 3087758 [patent_doc_number] => 05290525 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1994-03-01 [patent_title] => 'Removal of base metals and cyanide from gold-barren CIP solutions' [patent_app_type] => 1 [patent_app_number] => 7/945018 [patent_app_country] => US [patent_app_date] => 1992-09-14 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 2074 [patent_no_of_claims] => 5 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 55 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/290/05290525.pdf [firstpage_image] =>[orig_patent_app_number] => 945018 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/945018
Removal of base metals and cyanide from gold-barren CIP solutions Sep 13, 1992 Issued
Array ( [id] => 3062173 [patent_doc_number] => 05294416 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1994-03-15 [patent_title] => 'Process for the preparation of HBN' [patent_app_type] => 1 [patent_app_number] => 7/943768 [patent_app_country] => US [patent_app_date] => 1992-09-11 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 2405 [patent_no_of_claims] => 14 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 94 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/294/05294416.pdf [firstpage_image] =>[orig_patent_app_number] => 943768 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/943768
Process for the preparation of HBN Sep 10, 1992 Issued
Array ( [id] => 2941228 [patent_doc_number] => 05261965 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1993-11-16 [patent_title] => 'Semiconductor wafer cleaning using condensed-phase processing' [patent_app_type] => 1 [patent_app_number] => 7/937232 [patent_app_country] => US [patent_app_date] => 1992-08-28 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 8 [patent_no_of_words] => 5672 [patent_no_of_claims] => 21 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 88 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/261/05261965.pdf [firstpage_image] =>[orig_patent_app_number] => 937232 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/937232
Semiconductor wafer cleaning using condensed-phase processing Aug 27, 1992 Issued
Array ( [id] => 3027950 [patent_doc_number] => 05300145 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1994-04-05 [patent_title] => 'Low amylopectin starch' [patent_app_type] => 1 [patent_app_number] => 7/937794 [patent_app_country] => US [patent_app_date] => 1992-08-28 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 1 [patent_figures_cnt] => 1 [patent_no_of_words] => 7971 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 8 [patent_words_short_claim] => 30 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/300/05300145.pdf [firstpage_image] =>[orig_patent_app_number] => 937794 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/937794
Low amylopectin starch Aug 27, 1992 Issued
Array ( [id] => 2978705 [patent_doc_number] => 05250273 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1993-10-05 [patent_title] => 'Hydrometallurgical leaching process and apparatus' [patent_app_type] => 1 [patent_app_number] => 7/933904 [patent_app_country] => US [patent_app_date] => 1992-08-27 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 5 [patent_figures_cnt] => 5 [patent_no_of_words] => 9130 [patent_no_of_claims] => 19 [patent_no_of_ind_claims] => 5 [patent_words_short_claim] => 80 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/250/05250273.pdf [firstpage_image] =>[orig_patent_app_number] => 933904 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/933904
Hydrometallurgical leaching process and apparatus Aug 26, 1992 Issued
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