Search

Len Tran

Supervisory Patent Examiner (ID: 10373, Phone: (571)272-1184 , Office: P/3744 )

Most Active Art Unit
1725
Art Unit(s)
3752, 1725, 3763, 3744, 1722
Total Applications
847
Issued Applications
531
Pending Applications
65
Abandoned Applications
255

Applications

Application numberTitle of the applicationFiling DateStatus
Array ( [id] => 7290820 [patent_doc_number] => 20040211545 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2004-10-28 [patent_title] => 'Apparatus for producing a metallic slurry material for use in semi-solid forming of shaped parts' [patent_app_type] => new [patent_app_number] => 10/845311 [patent_app_country] => US [patent_app_date] => 2004-05-13 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 13 [patent_figures_cnt] => 13 [patent_no_of_words] => 17664 [patent_no_of_claims] => 25 [patent_no_of_ind_claims] => 5 [patent_words_short_claim] => 3 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] => publications/A1/0211/20040211545.pdf [firstpage_image] =>[orig_patent_app_number] => 10845311 [rel_patent_id] =>[rel_patent_doc_number] =>)
10/845311
Apparatus for producing a metallic slurry material for use in semi-solid forming of shaped parts May 12, 2004 Abandoned
Array ( [id] => 724460 [patent_doc_number] => 07040377 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2006-05-09 [patent_title] => 'Injection system and casting method of die casting machine' [patent_app_type] => utility [patent_app_number] => 10/840507 [patent_app_country] => US [patent_app_date] => 2004-05-07 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 2 [patent_figures_cnt] => 3 [patent_no_of_words] => 4716 [patent_no_of_claims] => 4 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 184 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/07/040/07040377.pdf [firstpage_image] =>[orig_patent_app_number] => 10840507 [rel_patent_id] =>[rel_patent_doc_number] =>)
10/840507
Injection system and casting method of die casting machine May 6, 2004 Issued
Array ( [id] => 491565 [patent_doc_number] => 07207375 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2007-04-24 [patent_title] => 'Investment casting' [patent_app_type] => utility [patent_app_number] => 10/840706 [patent_app_country] => US [patent_app_date] => 2004-05-06 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 6 [patent_figures_cnt] => 8 [patent_no_of_words] => 3220 [patent_no_of_claims] => 11 [patent_no_of_ind_claims] => 4 [patent_words_short_claim] => 40 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/07/207/07207375.pdf [firstpage_image] =>[orig_patent_app_number] => 10840706 [rel_patent_id] =>[rel_patent_doc_number] =>)
10/840706
Investment casting May 5, 2004 Issued
Array ( [id] => 7313785 [patent_doc_number] => 20040222198 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2004-11-11 [patent_title] => 'Local heatsink welding device and welding method thereof' [patent_app_type] => new [patent_app_number] => 10/838304 [patent_app_country] => US [patent_app_date] => 2004-05-05 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 4 [patent_no_of_words] => 3161 [patent_no_of_claims] => 9 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 102 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] => publications/A1/0222/20040222198.pdf [firstpage_image] =>[orig_patent_app_number] => 10838304 [rel_patent_id] =>[rel_patent_doc_number] =>)
10/838304
Local heatsink welding device and welding method thereof May 4, 2004 Issued
Array ( [id] => 7043088 [patent_doc_number] => 20050247687 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2005-11-10 [patent_title] => 'Method of metallurgically bonding articles and article therefor' [patent_app_type] => utility [patent_app_number] => 10/838607 [patent_app_country] => US [patent_app_date] => 2004-05-04 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 6 [patent_figures_cnt] => 6 [patent_no_of_words] => 4659 [patent_no_of_claims] => 21 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 0 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] => publications/A1/0247/20050247687.pdf [firstpage_image] =>[orig_patent_app_number] => 10838607 [rel_patent_id] =>[rel_patent_doc_number] =>)
10/838607
Method of metallurgically bonding articles and article therefor May 3, 2004 Issued
Array ( [id] => 7043074 [patent_doc_number] => 20050247678 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2005-11-10 [patent_title] => 'Method of metallurgically bonding articles and article therefor' [patent_app_type] => utility [patent_app_number] => 10/838608 [patent_app_country] => US [patent_app_date] => 2004-05-04 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 6 [patent_figures_cnt] => 6 [patent_no_of_words] => 4577 [patent_no_of_claims] => 21 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 0 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] => publications/A1/0247/20050247678.pdf [firstpage_image] =>[orig_patent_app_number] => 10838608 [rel_patent_id] =>[rel_patent_doc_number] =>)
10/838608
Method of metallurgically bonding articles and article therefor May 3, 2004 Issued
Array ( [id] => 749304 [patent_doc_number] => 07017647 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2006-03-28 [patent_title] => 'Method for casting objects with an improved hub core assembly' [patent_app_type] => utility [patent_app_number] => 10/845898 [patent_app_country] => US [patent_app_date] => 2004-04-29 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 6 [patent_no_of_words] => 2482 [patent_no_of_claims] => 17 [patent_no_of_ind_claims] => 6 [patent_words_short_claim] => 89 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/07/017/07017647.pdf [firstpage_image] =>[orig_patent_app_number] => 10845898 [rel_patent_id] =>[rel_patent_doc_number] =>)
10/845898
Method for casting objects with an improved hub core assembly Apr 28, 2004 Issued
Array ( [id] => 537777 [patent_doc_number] => 07173209 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2007-02-06 [patent_title] => 'Method and apparatus for welding sheet overlaps' [patent_app_type] => utility [patent_app_number] => 10/831806 [patent_app_country] => US [patent_app_date] => 2004-04-26 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 6 [patent_no_of_words] => 3264 [patent_no_of_claims] => 13 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 142 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/07/173/07173209.pdf [firstpage_image] =>[orig_patent_app_number] => 10831806 [rel_patent_id] =>[rel_patent_doc_number] =>)
10/831806
Method and apparatus for welding sheet overlaps Apr 25, 2004 Issued
Array ( [id] => 401889 [patent_doc_number] => 07292111 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2007-11-06 [patent_title] => 'Middle layer of die structure that comprises a cavity that holds an alkali metal' [patent_app_type] => utility [patent_app_number] => 10/831812 [patent_app_country] => US [patent_app_date] => 2004-04-26 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 9 [patent_no_of_words] => 4954 [patent_no_of_claims] => 16 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 137 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/07/292/07292111.pdf [firstpage_image] =>[orig_patent_app_number] => 10831812 [rel_patent_id] =>[rel_patent_doc_number] =>)
10/831812
Middle layer of die structure that comprises a cavity that holds an alkali metal Apr 25, 2004 Issued
Array ( [id] => 7230555 [patent_doc_number] => 20040256080 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2004-12-23 [patent_title] => 'Method and device for optimizing the cooling capacity of a continuous casting mold for liquid metals, particularly for liquid steel' [patent_app_type] => new [patent_app_number] => 10/493080 [patent_app_country] => US [patent_app_date] => 2004-04-15 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 4 [patent_no_of_words] => 3473 [patent_no_of_claims] => 17 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 130 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] => publications/A1/0256/20040256080.pdf [firstpage_image] =>[orig_patent_app_number] => 10493080 [rel_patent_id] =>[rel_patent_doc_number] =>)
10/493080
Method and device for optimizing the cooling capacity of a continuous casting mold for liquid metals, particularly for liquid steel Apr 14, 2004 Abandoned
Array ( [id] => 7216604 [patent_doc_number] => 20040154779 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2004-08-12 [patent_title] => 'Apparatus and method for producing toe caps for safety shoes' [patent_app_type] => new [patent_app_number] => 10/477094 [patent_app_country] => US [patent_app_date] => 2004-04-12 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 6 [patent_figures_cnt] => 6 [patent_no_of_words] => 1708 [patent_no_of_claims] => 12 [patent_no_of_ind_claims] => 9 [patent_words_short_claim] => 33 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] => publications/A1/0154/20040154779.pdf [firstpage_image] =>[orig_patent_app_number] => 10477094 [rel_patent_id] =>[rel_patent_doc_number] =>)
10/477094
Apparatus and method for producing toe caps for safety shoes Apr 11, 2004 Abandoned
Array ( [id] => 7172021 [patent_doc_number] => 20040200596 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2004-10-14 [patent_title] => 'Chill assembly' [patent_app_type] => new [patent_app_number] => 10/820608 [patent_app_country] => US [patent_app_date] => 2004-04-08 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 8 [patent_figures_cnt] => 8 [patent_no_of_words] => 3738 [patent_no_of_claims] => 26 [patent_no_of_ind_claims] => 4 [patent_words_short_claim] => 92 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] => publications/A1/0200/20040200596.pdf [firstpage_image] =>[orig_patent_app_number] => 10820608 [rel_patent_id] =>[rel_patent_doc_number] =>)
10/820608
Chill assembly Apr 7, 2004 Issued
Array ( [id] => 7333202 [patent_doc_number] => 20040188395 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2004-09-30 [patent_title] => 'Laser-hybrid welding with beam oscillation' [patent_app_type] => new [patent_app_number] => 10/821734 [patent_app_country] => US [patent_app_date] => 2004-04-08 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 3 [patent_no_of_words] => 2858 [patent_no_of_claims] => 17 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 109 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] => publications/A1/0188/20040188395.pdf [firstpage_image] =>[orig_patent_app_number] => 10821734 [rel_patent_id] =>[rel_patent_doc_number] =>)
10/821734
Laser-hybrid welding with beam oscillation Apr 7, 2004 Issued
Array ( [id] => 733812 [patent_doc_number] => 07038168 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2006-05-02 [patent_title] => 'Spindle and spool for welding gun' [patent_app_type] => utility [patent_app_number] => 10/818949 [patent_app_country] => US [patent_app_date] => 2004-04-06 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 12 [patent_figures_cnt] => 19 [patent_no_of_words] => 6480 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 142 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/07/038/07038168.pdf [firstpage_image] =>[orig_patent_app_number] => 10818949 [rel_patent_id] =>[rel_patent_doc_number] =>)
10/818949
Spindle and spool for welding gun Apr 5, 2004 Issued
Array ( [id] => 460826 [patent_doc_number] => 07241972 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2007-07-10 [patent_title] => 'Miniature welding gun' [patent_app_type] => utility [patent_app_number] => 10/818955 [patent_app_country] => US [patent_app_date] => 2004-04-06 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 12 [patent_figures_cnt] => 19 [patent_no_of_words] => 6499 [patent_no_of_claims] => 24 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 160 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/07/241/07241972.pdf [firstpage_image] =>[orig_patent_app_number] => 10818955 [rel_patent_id] =>[rel_patent_doc_number] =>)
10/818955
Miniature welding gun Apr 5, 2004 Issued
Array ( [id] => 7119798 [patent_doc_number] => 20050011627 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2005-01-20 [patent_title] => 'Method and apparatus for centrifugal casting of metal' [patent_app_type] => utility [patent_app_number] => 10/815945 [patent_app_country] => US [patent_app_date] => 2004-04-02 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 11 [patent_figures_cnt] => 11 [patent_no_of_words] => 9877 [patent_no_of_claims] => 14 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 0 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] => publications/A1/0011/20050011627.pdf [firstpage_image] =>[orig_patent_app_number] => 10815945 [rel_patent_id] =>[rel_patent_doc_number] =>)
10/815945
Method and apparatus for centrifugal casting of metal Apr 1, 2004 Issued
Array ( [id] => 7248256 [patent_doc_number] => 20040238510 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2004-12-02 [patent_title] => 'Soldering method for metal fastening elements' [patent_app_type] => new [patent_app_number] => 10/814479 [patent_app_country] => US [patent_app_date] => 2004-03-31 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 4 [patent_no_of_words] => 2817 [patent_no_of_claims] => 12 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 51 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] => publications/A1/0238/20040238510.pdf [firstpage_image] =>[orig_patent_app_number] => 10814479 [rel_patent_id] =>[rel_patent_doc_number] =>)
10/814479
Soldering method for metal fastening elements Mar 30, 2004 Abandoned
Array ( [id] => 479642 [patent_doc_number] => 07223934 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2007-05-29 [patent_title] => 'Hand welding device, welding apparatus and welding gauge' [patent_app_type] => utility [patent_app_number] => 10/812397 [patent_app_country] => US [patent_app_date] => 2004-03-29 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 1 [patent_figures_cnt] => 2 [patent_no_of_words] => 3649 [patent_no_of_claims] => 47 [patent_no_of_ind_claims] => 4 [patent_words_short_claim] => 83 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/07/223/07223934.pdf [firstpage_image] =>[orig_patent_app_number] => 10812397 [rel_patent_id] =>[rel_patent_doc_number] =>)
10/812397
Hand welding device, welding apparatus and welding gauge Mar 28, 2004 Issued
Array ( [id] => 7336885 [patent_doc_number] => 20040244938 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2004-12-09 [patent_title] => 'Continous casting mould' [patent_app_type] => new [patent_app_number] => 10/490538 [patent_app_country] => US [patent_app_date] => 2004-03-24 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 7 [patent_figures_cnt] => 7 [patent_no_of_words] => 3773 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 214 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] => publications/A1/0244/20040244938.pdf [firstpage_image] =>[orig_patent_app_number] => 10490538 [rel_patent_id] =>[rel_patent_doc_number] =>)
10/490538
Continous casting mould Mar 23, 2004 Abandoned
Array ( [id] => 7174463 [patent_doc_number] => 20050189085 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2005-09-01 [patent_title] => 'HOT CHAMBER DIE CASTING' [patent_app_type] => utility [patent_app_number] => 10/790472 [patent_app_country] => US [patent_app_date] => 2004-03-01 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 7 [patent_figures_cnt] => 7 [patent_no_of_words] => 2235 [patent_no_of_claims] => 27 [patent_no_of_ind_claims] => 4 [patent_words_short_claim] => 0 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] => publications/A1/0189/20050189085.pdf [firstpage_image] =>[orig_patent_app_number] => 10790472 [rel_patent_id] =>[rel_patent_doc_number] =>)
10/790472
Hot chamber die casting Feb 29, 2004 Issued
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