Search

Len Tran

Supervisory Patent Examiner (ID: 13971, Phone: (571)272-1184 , Office: P/3744 )

Most Active Art Unit
1725
Art Unit(s)
3752, 3744, 3763, 1725, 1722
Total Applications
876
Issued Applications
534
Pending Applications
80
Abandoned Applications
263

Applications

Application numberTitle of the applicationFiling DateStatus
Array ( [id] => 728561 [patent_doc_number] => 07036556 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2006-05-02 [patent_title] => 'Investment casting pins' [patent_app_type] => utility [patent_app_number] => 11/059897 [patent_app_country] => US [patent_app_date] => 2005-02-17 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 2 [patent_figures_cnt] => 7 [patent_no_of_words] => 2965 [patent_no_of_claims] => 24 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 93 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/07/036/07036556.pdf [firstpage_image] =>[orig_patent_app_number] => 11059897 [rel_patent_id] =>[rel_patent_doc_number] =>)
11/059897
Investment casting pins Feb 16, 2005 Issued
Array ( [id] => 7071798 [patent_doc_number] => 20050145064 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2005-07-07 [patent_title] => 'Method and apparatus for melting titanium using a combination of plasma torches and direct arc electrodes' [patent_app_type] => utility [patent_app_number] => 11/058796 [patent_app_country] => US [patent_app_date] => 2005-02-16 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 22 [patent_figures_cnt] => 22 [patent_no_of_words] => 9288 [patent_no_of_claims] => 20 [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/A1/0145/20050145064.pdf [firstpage_image] =>[orig_patent_app_number] => 11058796 [rel_patent_id] =>[rel_patent_doc_number] =>)
11/058796
Method and apparatus for melting titanium using a combination of plasma torches and direct arc electrodes Feb 15, 2005 Issued
Array ( [id] => 5664335 [patent_doc_number] => 20060169685 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2006-08-03 [patent_title] => 'SPOOL GUN HAVING UNITARY SHIELDING GAS AND WELD POWER CONNECTOR' [patent_app_type] => utility [patent_app_number] => 10/906128 [patent_app_country] => US [patent_app_date] => 2005-02-03 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 4 [patent_no_of_words] => 3371 [patent_no_of_claims] => 21 [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/A1/0169/20060169685.pdf [firstpage_image] =>[orig_patent_app_number] => 10906128 [rel_patent_id] =>[rel_patent_doc_number] =>)
10/906128
Spool gun having unitary shielding gas and weld power connector Feb 2, 2005 Issued
Array ( [id] => 732693 [patent_doc_number] => 07032648 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2006-04-25 [patent_title] => 'Investment moulding process and apparatus' [patent_app_type] => utility [patent_app_number] => 11/048782 [patent_app_country] => US [patent_app_date] => 2005-02-03 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 11 [patent_no_of_words] => 3633 [patent_no_of_claims] => 5 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 119 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/07/032/07032648.pdf [firstpage_image] =>[orig_patent_app_number] => 11048782 [rel_patent_id] =>[rel_patent_doc_number] =>)
11/048782
Investment moulding process and apparatus Feb 2, 2005 Issued
Array ( [id] => 386898 [patent_doc_number] => 07304267 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2007-12-04 [patent_title] => 'Method and a device for depositing a welding material in an annular facing machined in a spherical wall' [patent_app_type] => utility [patent_app_number] => 11/048730 [patent_app_country] => US [patent_app_date] => 2005-02-03 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 6 [patent_figures_cnt] => 6 [patent_no_of_words] => 6194 [patent_no_of_claims] => 6 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 180 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/07/304/07304267.pdf [firstpage_image] =>[orig_patent_app_number] => 11048730 [rel_patent_id] =>[rel_patent_doc_number] =>)
11/048730
Method and a device for depositing a welding material in an annular facing machined in a spherical wall Feb 2, 2005 Issued
Array ( [id] => 7093707 [patent_doc_number] => 20050126735 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2005-06-16 [patent_title] => 'Investment moulding process and apparatus' [patent_app_type] => utility [patent_app_number] => 11/048771 [patent_app_country] => US [patent_app_date] => 2005-02-03 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 5 [patent_figures_cnt] => 5 [patent_no_of_words] => 3599 [patent_no_of_claims] => 24 [patent_no_of_ind_claims] => 16 [patent_words_short_claim] => 0 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] => publications/A1/0126/20050126735.pdf [firstpage_image] =>[orig_patent_app_number] => 11048771 [rel_patent_id] =>[rel_patent_doc_number] =>)
11/048771
Investment moulding process and apparatus Feb 2, 2005 Issued
Array ( [id] => 704088 [patent_doc_number] => 07059383 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2006-06-13 [patent_title] => 'Molten metal handling apparatus' [patent_app_type] => utility [patent_app_number] => 11/044890 [patent_app_country] => US [patent_app_date] => 2005-01-27 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 5 [patent_figures_cnt] => 6 [patent_no_of_words] => 5005 [patent_no_of_claims] => 14 [patent_no_of_ind_claims] => 4 [patent_words_short_claim] => 36 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/07/059/07059383.pdf [firstpage_image] =>[orig_patent_app_number] => 11044890 [rel_patent_id] =>[rel_patent_doc_number] =>)
11/044890
Molten metal handling apparatus Jan 26, 2005 Issued
Array ( [id] => 518600 [patent_doc_number] => 07193175 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2007-03-20 [patent_title] => 'High precision, rapid laser hole drilling' [patent_app_type] => utility [patent_app_number] => 11/040588 [patent_app_country] => US [patent_app_date] => 2005-01-20 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 10 [patent_no_of_words] => 5745 [patent_no_of_claims] => 1 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 192 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/07/193/07193175.pdf [firstpage_image] =>[orig_patent_app_number] => 11040588 [rel_patent_id] =>[rel_patent_doc_number] =>)
11/040588
High precision, rapid laser hole drilling Jan 19, 2005 Issued
Array ( [id] => 484095 [patent_doc_number] => 07220935 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2007-05-22 [patent_title] => 'Welding torch and shield' [patent_app_type] => utility [patent_app_number] => 11/036363 [patent_app_country] => US [patent_app_date] => 2005-01-18 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 1 [patent_figures_cnt] => 1 [patent_no_of_words] => 1485 [patent_no_of_claims] => 16 [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/07/220/07220935.pdf [firstpage_image] =>[orig_patent_app_number] => 11036363 [rel_patent_id] =>[rel_patent_doc_number] =>)
11/036363
Welding torch and shield Jan 17, 2005 Issued
Array ( [id] => 6980562 [patent_doc_number] => 20050150630 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2005-07-14 [patent_title] => 'Cast-rolling plant' [patent_app_type] => utility [patent_app_number] => 11/036397 [patent_app_country] => US [patent_app_date] => 2005-01-14 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 2 [patent_figures_cnt] => 2 [patent_no_of_words] => 2874 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 0 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] => publications/A1/0150/20050150630.pdf [firstpage_image] =>[orig_patent_app_number] => 11036397 [rel_patent_id] =>[rel_patent_doc_number] =>)
11/036397
Cast-rolling plant Jan 13, 2005 Issued
Array ( [id] => 6935918 [patent_doc_number] => 20050109479 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2005-05-26 [patent_title] => 'Semi-solid metal casting process' [patent_app_type] => utility [patent_app_number] => 11/035062 [patent_app_country] => US [patent_app_date] => 2005-01-14 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 4 [patent_no_of_words] => 2932 [patent_no_of_claims] => 20 [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/A1/0109/20050109479.pdf [firstpage_image] =>[orig_patent_app_number] => 11035062 [rel_patent_id] =>[rel_patent_doc_number] =>)
11/035062
Semi-solid metal casting process Jan 13, 2005 Abandoned
Array ( [id] => 6980561 [patent_doc_number] => 20050150629 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2005-07-14 [patent_title] => 'Liquid-cooled ingot mold' [patent_app_type] => utility [patent_app_number] => 11/036400 [patent_app_country] => US [patent_app_date] => 2005-01-14 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 3 [patent_no_of_words] => 3146 [patent_no_of_claims] => 19 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 0 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] => publications/A1/0150/20050150629.pdf [firstpage_image] =>[orig_patent_app_number] => 11036400 [rel_patent_id] =>[rel_patent_doc_number] =>)
11/036400
Liquid-cooled ingot mold Jan 13, 2005 Issued
Array ( [id] => 621792 [patent_doc_number] => 07137434 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2006-11-21 [patent_title] => 'Continuous roll casting of ferrous and non-ferrous metals' [patent_app_type] => utility [patent_app_number] => 11/036253 [patent_app_country] => US [patent_app_date] => 2005-01-14 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 12 [patent_figures_cnt] => 18 [patent_no_of_words] => 5958 [patent_no_of_claims] => 6 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 174 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/07/137/07137434.pdf [firstpage_image] =>[orig_patent_app_number] => 11036253 [rel_patent_id] =>[rel_patent_doc_number] =>)
11/036253
Continuous roll casting of ferrous and non-ferrous metals Jan 13, 2005 Issued
Array ( [id] => 512369 [patent_doc_number] => 07196284 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2007-03-27 [patent_title] => 'Welding gun having rotational swivel coupling' [patent_app_type] => utility [patent_app_number] => 11/034039 [patent_app_country] => US [patent_app_date] => 2005-01-12 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 12 [patent_no_of_words] => 1963 [patent_no_of_claims] => 18 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 51 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/07/196/07196284.pdf [firstpage_image] =>[orig_patent_app_number] => 11034039 [rel_patent_id] =>[rel_patent_doc_number] =>)
11/034039
Welding gun having rotational swivel coupling Jan 11, 2005 Issued
Array ( [id] => 7100525 [patent_doc_number] => 20050103463 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2005-05-19 [patent_title] => 'Investment moulding process and apparatus' [patent_app_type] => utility [patent_app_number] => 11/022804 [patent_app_country] => US [patent_app_date] => 2004-12-28 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 5 [patent_figures_cnt] => 5 [patent_no_of_words] => 3599 [patent_no_of_claims] => 15 [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/A1/0103/20050103463.pdf [firstpage_image] =>[orig_patent_app_number] => 11022804 [rel_patent_id] =>[rel_patent_doc_number] =>)
11/022804
Investment moulding process and apparatus Dec 27, 2004 Abandoned
Array ( [id] => 691767 [patent_doc_number] => 07075029 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2006-07-11 [patent_title] => 'Method for assembling a vehicle body' [patent_app_type] => utility [patent_app_number] => 11/023701 [patent_app_country] => US [patent_app_date] => 2004-12-27 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 3 [patent_no_of_words] => 2218 [patent_no_of_claims] => 4 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 161 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/07/075/07075029.pdf [firstpage_image] =>[orig_patent_app_number] => 11023701 [rel_patent_id] =>[rel_patent_doc_number] =>)
11/023701
Method for assembling a vehicle body Dec 26, 2004 Issued
Array ( [id] => 6909333 [patent_doc_number] => 20050173091 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2005-08-11 [patent_title] => 'Method and apparatus for manufacturing strong thin-walled castings' [patent_app_type] => utility [patent_app_number] => 11/018941 [patent_app_country] => US [patent_app_date] => 2004-12-20 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 6 [patent_figures_cnt] => 6 [patent_no_of_words] => 3002 [patent_no_of_claims] => 5 [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/A1/0173/20050173091.pdf [firstpage_image] =>[orig_patent_app_number] => 11018941 [rel_patent_id] =>[rel_patent_doc_number] =>)
11/018941
Method and apparatus for manufacturing strong thin-walled castings Dec 19, 2004 Abandoned
Array ( [id] => 5908255 [patent_doc_number] => 20060124605 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2006-06-15 [patent_title] => 'Low impact spot welding cylinder with dual pistons' [patent_app_type] => utility [patent_app_number] => 11/010622 [patent_app_country] => US [patent_app_date] => 2004-12-13 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 9 [patent_figures_cnt] => 9 [patent_no_of_words] => 3639 [patent_no_of_claims] => 20 [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/A1/0124/20060124605.pdf [firstpage_image] =>[orig_patent_app_number] => 11010622 [rel_patent_id] =>[rel_patent_doc_number] =>)
11/010622
Low impact spot welding cylinder with dual pistons Dec 12, 2004 Issued
Array ( [id] => 7053527 [patent_doc_number] => 20050274698 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2005-12-15 [patent_title] => 'Low impact spot welding cylinder with single piston' [patent_app_type] => utility [patent_app_number] => 11/010857 [patent_app_country] => US [patent_app_date] => 2004-12-13 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 8 [patent_figures_cnt] => 8 [patent_no_of_words] => 3389 [patent_no_of_claims] => 20 [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/A1/0274/20050274698.pdf [firstpage_image] =>[orig_patent_app_number] => 11010857 [rel_patent_id] =>[rel_patent_doc_number] =>)
11/010857
Low impact spot welding cylinder with single piston Dec 12, 2004 Issued
Array ( [id] => 614782 [patent_doc_number] => 07143808 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2006-12-05 [patent_title] => 'Intake or exhaust port molding core structure' [patent_app_type] => utility [patent_app_number] => 11/010012 [patent_app_country] => US [patent_app_date] => 2004-12-10 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 4 [patent_no_of_words] => 1725 [patent_no_of_claims] => 12 [patent_no_of_ind_claims] => 4 [patent_words_short_claim] => 93 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/07/143/07143808.pdf [firstpage_image] =>[orig_patent_app_number] => 11010012 [rel_patent_id] =>[rel_patent_doc_number] =>)
11/010012
Intake or exhaust port molding core structure Dec 9, 2004 Issued
Menu