Search

Duc M. Nguyen

Examiner (ID: 11247, Phone: (571)272-7893 , Office: P/2647 )

Most Active Art Unit
2618
Art Unit(s)
2682, 2618, 2745, 2600, 2685, 2648, 2647
Total Applications
1320
Issued Applications
996
Pending Applications
59
Abandoned Applications
270

Applications

Application numberTitle of the applicationFiling DateStatus
07/236576 HYDROCONVERSION EFFLUENT SEPARATION PROCESS Aug 24, 1988 Abandoned
Array ( [id] => 2765385 [patent_doc_number] => 04985140 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1991-01-15 [patent_title] => 'Apparatus for measuring flash point of petroleum intermediate fraction and method for controlling flash point' [patent_app_type] => 1 [patent_app_number] => 7/235524 [patent_app_country] => US [patent_app_date] => 1988-08-24 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 1 [patent_figures_cnt] => 2 [patent_no_of_words] => 2297 [patent_no_of_claims] => 2 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 149 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/985/04985140.pdf [firstpage_image] =>[orig_patent_app_number] => 235524 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/235524
Apparatus for measuring flash point of petroleum intermediate fraction and method for controlling flash point Aug 23, 1988 Issued
Array ( [id] => 2620410 [patent_doc_number] => 04919793 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1990-04-24 [patent_title] => 'Process for improving products\' quality and yields from delayed coking' [patent_app_type] => 1 [patent_app_number] => 7/232761 [patent_app_country] => US [patent_app_date] => 1988-08-15 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 2 [patent_figures_cnt] => 2 [patent_no_of_words] => 7948 [patent_no_of_claims] => 5 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 201 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/919/04919793.pdf [firstpage_image] =>[orig_patent_app_number] => 232761 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/232761
Process for improving products' quality and yields from delayed coking Aug 14, 1988 Issued
Array ( [id] => 2520099 [patent_doc_number] => 04883583 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1989-11-28 [patent_title] => 'Process for the catalytic cracking of hydrocarbons in a fluidized bed and their applications' [patent_app_type] => 1 [patent_app_number] => 7/229810 [patent_app_country] => US [patent_app_date] => 1988-08-08 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 2 [patent_figures_cnt] => 3 [patent_no_of_words] => 2947 [patent_no_of_claims] => 10 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 133 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/883/04883583.pdf [firstpage_image] =>[orig_patent_app_number] => 229810 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/229810
Process for the catalytic cracking of hydrocarbons in a fluidized bed and their applications Aug 7, 1988 Issued
Array ( [id] => 2611386 [patent_doc_number] => 04902850 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1990-02-20 [patent_title] => 'Purification of anethole by crystallization' [patent_app_type] => 1 [patent_app_number] => 7/229004 [patent_app_country] => US [patent_app_date] => 1988-08-05 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 1711 [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/04/902/04902850.pdf [firstpage_image] =>[orig_patent_app_number] => 229004 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/229004
Purification of anethole by crystallization Aug 4, 1988 Issued
07/228075 POLYCARBONATE MEMBRANES FOR SEPARATION OF AROMATICS FROM SATURATES (C-2253) Aug 3, 1988 Abandoned
07/228076 CROSSLINKED POLYCARBONATE MEMBRANES FOR SEPARATION OF AROMATICS FROM SATURATES (C-2254) Aug 3, 1988 Abandoned
Array ( [id] => 2591627 [patent_doc_number] => 04964980 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1990-10-23 [patent_title] => 'Apparatus and process for stabilizing liquid hydrocarbon condensate' [patent_app_type] => 1 [patent_app_number] => 7/224859 [patent_app_country] => US [patent_app_date] => 1988-07-27 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 3 [patent_no_of_words] => 2455 [patent_no_of_claims] => 7 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 125 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/964/04964980.pdf [firstpage_image] =>[orig_patent_app_number] => 224859 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/224859
Apparatus and process for stabilizing liquid hydrocarbon condensate Jul 26, 1988 Issued
Array ( [id] => 2597642 [patent_doc_number] => 04948495 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1990-08-14 [patent_title] => 'High liquid yield process for retorting various organic materials including oil shale' [patent_app_type] => 1 [patent_app_number] => 7/224414 [patent_app_country] => US [patent_app_date] => 1988-07-26 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 2 [patent_figures_cnt] => 2 [patent_no_of_words] => 3870 [patent_no_of_claims] => 9 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 461 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/948/04948495.pdf [firstpage_image] =>[orig_patent_app_number] => 224414 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/224414
High liquid yield process for retorting various organic materials including oil shale Jul 25, 1988 Issued
07/222801 DISSOLUTION OF PARAFFINIC/BITUMINOUS DEPOSITS AND POUR POINT REDUCTION Jul 21, 1988 Abandoned
07/221808 PROCESS FOR REMOVING PURE AROMATICS Jul 19, 1988 Abandoned
Array ( [id] => 2616103 [patent_doc_number] => 04894145 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1990-01-16 [patent_title] => 'Automatic control of feedstock vacuum towers' [patent_app_type] => 1 [patent_app_number] => 7/221484 [patent_app_country] => US [patent_app_date] => 1988-07-19 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 2 [patent_figures_cnt] => 3 [patent_no_of_words] => 5004 [patent_no_of_claims] => 15 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 152 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/894/04894145.pdf [firstpage_image] =>[orig_patent_app_number] => 221484 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/221484
Automatic control of feedstock vacuum towers Jul 18, 1988 Issued
Array ( [id] => 2765367 [patent_doc_number] => 04985139 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1991-01-15 [patent_title] => 'Two-step heterocyclic nitrogen extraction from petroleum oils with reduced refinery equipment' [patent_app_type] => 1 [patent_app_number] => 7/219509 [patent_app_country] => US [patent_app_date] => 1988-07-14 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 2 [patent_figures_cnt] => 2 [patent_no_of_words] => 6341 [patent_no_of_claims] => 12 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 454 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/985/04985139.pdf [firstpage_image] =>[orig_patent_app_number] => 219509 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/219509
Two-step heterocyclic nitrogen extraction from petroleum oils with reduced refinery equipment Jul 13, 1988 Issued
Array ( [id] => 2591774 [patent_doc_number] => 04921592 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1990-05-01 [patent_title] => 'Process for controlling fouling of catalyst beds' [patent_app_type] => 1 [patent_app_number] => 7/217582 [patent_app_country] => US [patent_app_date] => 1988-07-11 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 3347 [patent_no_of_claims] => 25 [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/04/921/04921592.pdf [firstpage_image] =>[orig_patent_app_number] => 217582 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/217582
Process for controlling fouling of catalyst beds Jul 10, 1988 Issued
Array ( [id] => 2602896 [patent_doc_number] => 04902404 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1990-02-20 [patent_title] => 'Hydrotreating process with catalyst staging' [patent_app_type] => 1 [patent_app_number] => 7/215093 [patent_app_country] => US [patent_app_date] => 1988-07-05 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 6366 [patent_no_of_claims] => 7 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 279 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/902/04902404.pdf [firstpage_image] =>[orig_patent_app_number] => 215093 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/215093
Hydrotreating process with catalyst staging Jul 4, 1988 Issued
Array ( [id] => 2611352 [patent_doc_number] => 04902848 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1990-02-20 [patent_title] => 'Process for the dehydrogenation of hydrocarbons' [patent_app_type] => 1 [patent_app_number] => 7/214355 [patent_app_country] => US [patent_app_date] => 1988-07-01 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 1 [patent_figures_cnt] => 1 [patent_no_of_words] => 4427 [patent_no_of_claims] => 7 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 179 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/902/04902848.pdf [firstpage_image] =>[orig_patent_app_number] => 214355 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/214355
Process for the dehydrogenation of hydrocarbons Jun 30, 1988 Issued
Array ( [id] => 2523036 [patent_doc_number] => 04888108 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1989-12-19 [patent_title] => 'Separation of fine solids from petroleum oils and the like' [patent_app_type] => 1 [patent_app_number] => 7/220934 [patent_app_country] => US [patent_app_date] => 1988-06-23 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 1 [patent_figures_cnt] => 1 [patent_no_of_words] => 6986 [patent_no_of_claims] => 11 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 102 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/888/04888108.pdf [firstpage_image] =>[orig_patent_app_number] => 220934 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/220934
Separation of fine solids from petroleum oils and the like Jun 22, 1988 Issued
Array ( [id] => 2596299 [patent_doc_number] => 04931170 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1990-06-05 [patent_title] => 'Method for lightening petroleum hydrocarbon oil by distillation' [patent_app_type] => 1 [patent_app_number] => 7/233659 [patent_app_country] => US [patent_app_date] => 1988-06-22 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 1390 [patent_no_of_claims] => 3 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 69 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/931/04931170.pdf [firstpage_image] =>[orig_patent_app_number] => 233659 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/233659
Method for lightening petroleum hydrocarbon oil by distillation Jun 21, 1988 Issued
Array ( [id] => 2582905 [patent_doc_number] => 04927519 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1990-05-22 [patent_title] => 'Method for controlling fouling deposit formation in a liquid hydrocarbonaceous medium using multifunctional antifoulant compositions' [patent_app_type] => 1 [patent_app_number] => 7/208203 [patent_app_country] => US [patent_app_date] => 1988-06-17 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 4599 [patent_no_of_claims] => 83 [patent_no_of_ind_claims] => 4 [patent_words_short_claim] => 263 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/927/04927519.pdf [firstpage_image] =>[orig_patent_app_number] => 208203 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/208203
Method for controlling fouling deposit formation in a liquid hydrocarbonaceous medium using multifunctional antifoulant compositions Jun 16, 1988 Issued
Array ( [id] => 2670771 [patent_doc_number] => 04935580 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1990-06-19 [patent_title] => 'Process for purification of hydrocarbons using metal exchanged clinoptilolite to remove carbon dioxide' [patent_app_type] => 1 [patent_app_number] => 7/206280 [patent_app_country] => US [patent_app_date] => 1988-06-14 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 6544 [patent_no_of_claims] => 12 [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/04/935/04935580.pdf [firstpage_image] =>[orig_patent_app_number] => 206280 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/206280
Process for purification of hydrocarbons using metal exchanged clinoptilolite to remove carbon dioxide Jun 13, 1988 Issued
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