Search

Duy Khuong Thanh Nguyen

Examiner (ID: 6208, Phone: (571)270-7139 , Office: P/2197 )

Most Active Art Unit
2199
Art Unit(s)
2197, 2199
Total Applications
606
Issued Applications
447
Pending Applications
68
Abandoned Applications
98

Applications

Application numberTitle of the applicationFiling DateStatus
Array ( [id] => 2915326 [patent_doc_number] => 05219014 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1993-06-15 [patent_title] => 'Device and method for fabricating foundry molds from granular material' [patent_app_type] => 1 [patent_app_number] => 7/824075 [patent_app_country] => US [patent_app_date] => 1992-01-23 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 5 [patent_no_of_words] => 1725 [patent_no_of_claims] => 7 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 158 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/219/05219014.pdf [firstpage_image] =>[orig_patent_app_number] => 824075 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/824075
Device and method for fabricating foundry molds from granular material Jan 22, 1992 Issued
Array ( [id] => 3018127 [patent_doc_number] => 05299620 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1994-04-05 [patent_title] => 'Metal casting surface modification by powder impregnation' [patent_app_type] => 1 [patent_app_number] => 7/822903 [patent_app_country] => US [patent_app_date] => 1992-01-21 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 6 [patent_no_of_words] => 2092 [patent_no_of_claims] => 12 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 75 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/299/05299620.pdf [firstpage_image] =>[orig_patent_app_number] => 822903 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/822903
Metal casting surface modification by powder impregnation Jan 20, 1992 Issued
Array ( [id] => 2869960 [patent_doc_number] => 05267600 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1993-12-07 [patent_title] => 'Hard facing casting surfaces with wear-resistant sheets' [patent_app_type] => 1 [patent_app_number] => 7/822904 [patent_app_country] => US [patent_app_date] => 1992-01-21 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 2 [patent_figures_cnt] => 6 [patent_no_of_words] => 2336 [patent_no_of_claims] => 19 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 103 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/267/05267600.pdf [firstpage_image] =>[orig_patent_app_number] => 822904 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/822904
Hard facing casting surfaces with wear-resistant sheets Jan 20, 1992 Issued
Array ( [id] => 2882593 [patent_doc_number] => 05217059 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1993-06-08 [patent_title] => 'Casting core and method for forming a water jacket chamber within a cast cylinder block' [patent_app_type] => 1 [patent_app_number] => 7/821968 [patent_app_country] => US [patent_app_date] => 1992-01-16 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 14 [patent_no_of_words] => 3625 [patent_no_of_claims] => 24 [patent_no_of_ind_claims] => 4 [patent_words_short_claim] => 29 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/217/05217059.pdf [firstpage_image] =>[orig_patent_app_number] => 821968 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/821968
Casting core and method for forming a water jacket chamber within a cast cylinder block Jan 15, 1992 Issued
Array ( [id] => 2995710 [patent_doc_number] => 05280820 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1994-01-25 [patent_title] => 'Method for metallurgically bonding cylinder liners to a cylinder block of an internal combustion engine' [patent_app_type] => 1 [patent_app_number] => 7/821763 [patent_app_country] => US [patent_app_date] => 1992-01-15 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 1 [patent_figures_cnt] => 4 [patent_no_of_words] => 2233 [patent_no_of_claims] => 24 [patent_no_of_ind_claims] => 5 [patent_words_short_claim] => 25 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/280/05280820.pdf [firstpage_image] =>[orig_patent_app_number] => 821763 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/821763
Method for metallurgically bonding cylinder liners to a cylinder block of an internal combustion engine Jan 14, 1992 Issued
Array ( [id] => 2957063 [patent_doc_number] => 05207266 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1993-05-04 [patent_title] => 'Water-cooled copper casting mold' [patent_app_type] => 1 [patent_app_number] => 7/816820 [patent_app_country] => US [patent_app_date] => 1992-01-03 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 6 [patent_figures_cnt] => 16 [patent_no_of_words] => 2532 [patent_no_of_claims] => 2 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 133 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/207/05207266.pdf [firstpage_image] =>[orig_patent_app_number] => 816820 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/816820
Water-cooled copper casting mold Jan 2, 1992 Issued
Array ( [id] => 3052803 [patent_doc_number] => 05293925 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1994-03-15 [patent_title] => 'Method of and apparatus for withdrawing strand in horizontal continuous casting installation' [patent_app_type] => 1 [patent_app_number] => 7/811964 [patent_app_country] => US [patent_app_date] => 1991-12-23 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 28 [patent_figures_cnt] => 42 [patent_no_of_words] => 12616 [patent_no_of_claims] => 18 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 224 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/293/05293925.pdf [firstpage_image] =>[orig_patent_app_number] => 811964 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/811964
Method of and apparatus for withdrawing strand in horizontal continuous casting installation Dec 22, 1991 Issued
Array ( [id] => 2900579 [patent_doc_number] => 05205342 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1993-04-27 [patent_title] => 'Continuous slab caster arrangement followed by a rolling mill' [patent_app_type] => 1 [patent_app_number] => 7/809267 [patent_app_country] => US [patent_app_date] => 1991-12-16 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 7 [patent_figures_cnt] => 10 [patent_no_of_words] => 4413 [patent_no_of_claims] => 17 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 241 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/205/05205342.pdf [firstpage_image] =>[orig_patent_app_number] => 809267 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/809267
Continuous slab caster arrangement followed by a rolling mill Dec 15, 1991 Issued
Array ( [id] => 3027183 [patent_doc_number] => 05333668 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1994-08-02 [patent_title] => 'Process for creation of metallurgically bonded inserts cast-in-place in a cast aluminum article' [patent_app_type] => 1 [patent_app_number] => 7/803846 [patent_app_country] => US [patent_app_date] => 1991-12-09 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 5 [patent_figures_cnt] => 11 [patent_no_of_words] => 9244 [patent_no_of_claims] => 23 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 208 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/333/05333668.pdf [firstpage_image] =>[orig_patent_app_number] => 803846 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/803846
Process for creation of metallurgically bonded inserts cast-in-place in a cast aluminum article Dec 8, 1991 Issued
Array ( [id] => 2923921 [patent_doc_number] => 05222547 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1993-06-29 [patent_title] => 'Intermediate pressure electron beam furnace' [patent_app_type] => 1 [patent_app_number] => 7/792247 [patent_app_country] => US [patent_app_date] => 1991-11-14 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 1 [patent_figures_cnt] => 2 [patent_no_of_words] => 2134 [patent_no_of_claims] => 10 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 76 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/222/05222547.pdf [firstpage_image] =>[orig_patent_app_number] => 792247 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/792247
Intermediate pressure electron beam furnace Nov 13, 1991 Issued
Array ( [id] => 2956072 [patent_doc_number] => 05193605 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1993-03-16 [patent_title] => 'Techniques for preparation of ingot metallurgical discontinuous composites' [patent_app_type] => 1 [patent_app_number] => 7/787807 [patent_app_country] => US [patent_app_date] => 1991-11-04 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 2 [patent_figures_cnt] => 6 [patent_no_of_words] => 2633 [patent_no_of_claims] => 9 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 103 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/193/05193605.pdf [firstpage_image] =>[orig_patent_app_number] => 787807 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/787807
Techniques for preparation of ingot metallurgical discontinuous composites Nov 3, 1991 Issued
07/787033 METHOD OF MANUFACTURING CORE AND MOLD Nov 3, 1991 Abandoned
Array ( [id] => 2913576 [patent_doc_number] => 05188023 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1993-02-23 [patent_title] => 'Cast formed bi-metallic worm assembly and method' [patent_app_type] => 1 [patent_app_number] => 7/784981 [patent_app_country] => US [patent_app_date] => 1991-10-30 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 11 [patent_no_of_words] => 3046 [patent_no_of_claims] => 10 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 158 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/188/05188023.pdf [firstpage_image] =>[orig_patent_app_number] => 784981 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/784981
Cast formed bi-metallic worm assembly and method Oct 29, 1991 Issued
Array ( [id] => 3448819 [patent_doc_number] => 05381851 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1995-01-17 [patent_title] => 'Low pressure chill casting method for casting metal cast components' [patent_app_type] => 1 [patent_app_number] => 7/768748 [patent_app_country] => US [patent_app_date] => 1991-10-18 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 1 [patent_figures_cnt] => 2 [patent_no_of_words] => 1853 [patent_no_of_claims] => 5 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 113 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/381/05381851.pdf [firstpage_image] =>[orig_patent_app_number] => 768748 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/768748
Low pressure chill casting method for casting metal cast components Oct 17, 1991 Issued
Array ( [id] => 2870001 [patent_doc_number] => 05267602 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1993-12-07 [patent_title] => 'Casting metals' [patent_app_type] => 1 [patent_app_number] => 7/777001 [patent_app_country] => US [patent_app_date] => 1991-10-16 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 2 [patent_figures_cnt] => 3 [patent_no_of_words] => 2095 [patent_no_of_claims] => 21 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 71 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/267/05267602.pdf [firstpage_image] =>[orig_patent_app_number] => 777001 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/777001
Casting metals Oct 15, 1991 Issued
07/774110 METHOD OF DISCRIMINATING QUALITY OF DIE-CAST ARTICLE AND DIE-CASTING PROCESS USING SAME Oct 14, 1991 Abandoned
Array ( [id] => 2868857 [patent_doc_number] => 05213149 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1993-05-25 [patent_title] => 'Mold and method for making variable thickness cast articles' [patent_app_type] => 1 [patent_app_number] => 7/776607 [patent_app_country] => US [patent_app_date] => 1991-10-10 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 1 [patent_figures_cnt] => 2 [patent_no_of_words] => 3689 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 5 [patent_words_short_claim] => 51 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/213/05213149.pdf [firstpage_image] =>[orig_patent_app_number] => 776607 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/776607
Mold and method for making variable thickness cast articles Oct 9, 1991 Issued
Array ( [id] => 2966649 [patent_doc_number] => 05207776 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1993-05-04 [patent_title] => 'Bi-metallic extrusion billet preforms and method and apparatus for producing same' [patent_app_type] => 1 [patent_app_number] => 7/771906 [patent_app_country] => US [patent_app_date] => 1991-10-04 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 2 [patent_figures_cnt] => 2 [patent_no_of_words] => 3815 [patent_no_of_claims] => 24 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 147 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/207/05207776.pdf [firstpage_image] =>[orig_patent_app_number] => 771906 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/771906
Bi-metallic extrusion billet preforms and method and apparatus for producing same Oct 3, 1991 Issued
Array ( [id] => 2958408 [patent_doc_number] => 05255730 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1993-10-26 [patent_title] => 'Process for producing a casting consisting of a primary piece and a secondary piece using the casting-on technique and a ceramic insulating compound suitable for this' [patent_app_type] => 1 [patent_app_number] => 7/743349 [patent_app_country] => US [patent_app_date] => 1991-10-01 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 6607 [patent_no_of_claims] => 25 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 113 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/255/05255730.pdf [firstpage_image] =>[orig_patent_app_number] => 743349 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/743349
Process for producing a casting consisting of a primary piece and a secondary piece using the casting-on technique and a ceramic insulating compound suitable for this Sep 30, 1991 Issued
Array ( [id] => 2932090 [patent_doc_number] => 05261477 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1993-11-16 [patent_title] => 'Process for producing parts with an abrasion-proof surface' [patent_app_type] => 1 [patent_app_number] => 7/769455 [patent_app_country] => US [patent_app_date] => 1991-10-01 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 9 [patent_no_of_words] => 4781 [patent_no_of_claims] => 14 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 57 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/261/05261477.pdf [firstpage_image] =>[orig_patent_app_number] => 769455 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/769455
Process for producing parts with an abrasion-proof surface Sep 30, 1991 Issued
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