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] => 6671659 [patent_doc_number] => 20030057262 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2003-03-27 [patent_title] => 'Method for connecting two components by means of friction welding and a machine element produced according to said method' [patent_app_type] => new [patent_app_number] => 10/182274 [patent_app_country] => US [patent_app_date] => 2002-10-09 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 4 [patent_no_of_words] => 3487 [patent_no_of_claims] => 7 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 141 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] => publications/A1/0057/20030057262.pdf [firstpage_image] =>[orig_patent_app_number] => 10182274 [rel_patent_id] =>[rel_patent_doc_number] =>)
10/182274
Method for connecting two components by means of friction welding and a machine element produced according to said method Oct 8, 2002 Abandoned
Array ( [id] => 7431297 [patent_doc_number] => 20040065642 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2004-04-08 [patent_title] => 'Resistance welding electrode' [patent_app_type] => new [patent_app_number] => 10/266233 [patent_app_country] => US [patent_app_date] => 2002-10-08 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 2 [patent_figures_cnt] => 2 [patent_no_of_words] => 1574 [patent_no_of_claims] => 13 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 92 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] => publications/A1/0065/20040065642.pdf [firstpage_image] =>[orig_patent_app_number] => 10266233 [rel_patent_id] =>[rel_patent_doc_number] =>)
10/266233
Resistance welding electrode Oct 7, 2002 Issued
Array ( [id] => 1148712 [patent_doc_number] => 06761208 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2004-07-13 [patent_title] => 'Method and apparatus for die-casting a V-block for an internal combustion engine' [patent_app_type] => B2 [patent_app_number] => 10/264151 [patent_app_country] => US [patent_app_date] => 2002-10-03 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 9 [patent_figures_cnt] => 10 [patent_no_of_words] => 4209 [patent_no_of_claims] => 16 [patent_no_of_ind_claims] => 4 [patent_words_short_claim] => 132 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/06/761/06761208.pdf [firstpage_image] =>[orig_patent_app_number] => 10264151 [rel_patent_id] =>[rel_patent_doc_number] =>)
10/264151
Method and apparatus for die-casting a V-block for an internal combustion engine Oct 2, 2002 Issued
Array ( [id] => 7632825 [patent_doc_number] => 06664509 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2003-12-16 [patent_title] => 'Method for securing sheet piles' [patent_app_type] => B2 [patent_app_number] => 10/240254 [patent_app_country] => US [patent_app_date] => 2002-09-27 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 5 [patent_figures_cnt] => 9 [patent_no_of_words] => 3721 [patent_no_of_claims] => 16 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 12 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/06/664/06664509.pdf [firstpage_image] =>[orig_patent_app_number] => 10240254 [rel_patent_id] =>[rel_patent_doc_number] =>)
10/240254
Method for securing sheet piles Sep 26, 2002 Issued
Array ( [id] => 1172625 [patent_doc_number] => 06736189 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2004-05-18 [patent_title] => 'Guide segment fitted with rollers on a continuous casting installation' [patent_app_type] => B2 [patent_app_number] => 10/182283 [patent_app_country] => US [patent_app_date] => 2002-09-27 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 3 [patent_no_of_words] => 1734 [patent_no_of_claims] => 5 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 170 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/06/736/06736189.pdf [firstpage_image] =>[orig_patent_app_number] => 10182283 [rel_patent_id] =>[rel_patent_doc_number] =>)
10/182283
Guide segment fitted with rollers on a continuous casting installation Sep 26, 2002 Issued
Array ( [id] => 1205060 [patent_doc_number] => 06716554 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2004-04-06 [patent_title] => 'Battery case, cover, and feedthrough' [patent_app_type] => B2 [patent_app_number] => 10/256122 [patent_app_country] => US [patent_app_date] => 2002-09-26 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 6 [patent_figures_cnt] => 11 [patent_no_of_words] => 3414 [patent_no_of_claims] => 55 [patent_no_of_ind_claims] => 6 [patent_words_short_claim] => 87 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/06/716/06716554.pdf [firstpage_image] =>[orig_patent_app_number] => 10256122 [rel_patent_id] =>[rel_patent_doc_number] =>)
10/256122
Battery case, cover, and feedthrough Sep 25, 2002 Issued
Array ( [id] => 1132852 [patent_doc_number] => 06779585 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2004-08-24 [patent_title] => 'Method for controlling ladle motion to reduce aluminum oxide formation' [patent_app_type] => B2 [patent_app_number] => 10/254195 [patent_app_country] => US [patent_app_date] => 2002-09-25 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 2 [patent_figures_cnt] => 7 [patent_no_of_words] => 1997 [patent_no_of_claims] => 12 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 176 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/06/779/06779585.pdf [firstpage_image] =>[orig_patent_app_number] => 10254195 [rel_patent_id] =>[rel_patent_doc_number] =>)
10/254195
Method for controlling ladle motion to reduce aluminum oxide formation Sep 24, 2002 Issued
Array ( [id] => 7267483 [patent_doc_number] => 20040056001 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2004-03-25 [patent_title] => 'Deformation resistance welding of sheet metal, tubes, and similar shapes' [patent_app_type] => new [patent_app_number] => 10/253099 [patent_app_country] => US [patent_app_date] => 2002-09-24 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 5 [patent_figures_cnt] => 5 [patent_no_of_words] => 3557 [patent_no_of_claims] => 21 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 69 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] => publications/A1/0056/20040056001.pdf [firstpage_image] =>[orig_patent_app_number] => 10253099 [rel_patent_id] =>[rel_patent_doc_number] =>)
10/253099
Deformation resistance welding of sheet metal, tubes, and similar shapes Sep 23, 2002 Abandoned
Array ( [id] => 1039026 [patent_doc_number] => 06868896 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2005-03-22 [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] => 10/251030 [patent_app_country] => US [patent_app_date] => 2002-09-20 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 21 [patent_figures_cnt] => 21 [patent_no_of_words] => 9255 [patent_no_of_claims] => 50 [patent_no_of_ind_claims] => 11 [patent_words_short_claim] => 70 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/06/868/06868896.pdf [firstpage_image] =>[orig_patent_app_number] => 10251030 [rel_patent_id] =>[rel_patent_doc_number] =>)
10/251030
Method and apparatus for melting titanium using a combination of plasma torches and direct arc electrodes Sep 19, 2002 Issued
Array ( [id] => 7267164 [patent_doc_number] => 20040055730 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2004-03-25 [patent_title] => 'Method and apparatus for alternating pouring from common hearth in plasma furnace' [patent_app_type] => new [patent_app_number] => 10/251029 [patent_app_country] => US [patent_app_date] => 2002-09-20 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 22 [patent_figures_cnt] => 22 [patent_no_of_words] => 9410 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 82 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] => publications/A1/0055/20040055730.pdf [firstpage_image] =>[orig_patent_app_number] => 10251029 [rel_patent_id] =>[rel_patent_doc_number] =>)
10/251029
Method and apparatus for alternating pouring from common hearth in plasma furnace Sep 19, 2002 Issued
Array ( [id] => 491121 [patent_doc_number] => 07214905 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2007-05-08 [patent_title] => 'Cover for a welding-type power source' [patent_app_type] => utility [patent_app_number] => 10/251390 [patent_app_country] => US [patent_app_date] => 2002-09-20 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 10 [patent_no_of_words] => 2264 [patent_no_of_claims] => 30 [patent_no_of_ind_claims] => 6 [patent_words_short_claim] => 44 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/07/214/07214905.pdf [firstpage_image] =>[orig_patent_app_number] => 10251390 [rel_patent_id] =>[rel_patent_doc_number] =>)
10/251390
Cover for a welding-type power source Sep 19, 2002 Issued
Array ( [id] => 1051558 [patent_doc_number] => 06857464 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2005-02-22 [patent_title] => 'Adjustable casting mold' [patent_app_type] => utility [patent_app_number] => 10/246765 [patent_app_country] => US [patent_app_date] => 2002-09-19 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 13 [patent_figures_cnt] => 19 [patent_no_of_words] => 8592 [patent_no_of_claims] => 48 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 318 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/06/857/06857464.pdf [firstpage_image] =>[orig_patent_app_number] => 10246765 [rel_patent_id] =>[rel_patent_doc_number] =>)
10/246765
Adjustable casting mold Sep 18, 2002 Issued
Array ( [id] => 1119858 [patent_doc_number] => 06793004 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2004-09-21 [patent_title] => 'Temperature control unit and temperature control apparatus using it for raw molding sand or resin-coated sand for shell mold' [patent_app_type] => B2 [patent_app_number] => 10/244754 [patent_app_country] => US [patent_app_date] => 2002-09-17 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 6 [patent_no_of_words] => 4732 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 6 [patent_words_short_claim] => 63 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/06/793/06793004.pdf [firstpage_image] =>[orig_patent_app_number] => 10244754 [rel_patent_id] =>[rel_patent_doc_number] =>)
10/244754
Temperature control unit and temperature control apparatus using it for raw molding sand or resin-coated sand for shell mold Sep 16, 2002 Issued
Array ( [id] => 7442623 [patent_doc_number] => 20040050823 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2004-03-18 [patent_title] => 'Welding torch having integral gas lens and collet and method of operating same' [patent_app_type] => new [patent_app_number] => 10/244302 [patent_app_country] => US [patent_app_date] => 2002-09-16 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 5 [patent_figures_cnt] => 5 [patent_no_of_words] => 2792 [patent_no_of_claims] => 47 [patent_no_of_ind_claims] => 7 [patent_words_short_claim] => 37 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] => publications/A1/0050/20040050823.pdf [firstpage_image] =>[orig_patent_app_number] => 10244302 [rel_patent_id] =>[rel_patent_doc_number] =>)
10/244302
Welding torch having integral gas lens and collet and method of operating same Sep 15, 2002 Issued
Array ( [id] => 1104643 [patent_doc_number] => 06808007 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2004-10-26 [patent_title] => 'Die opening/closing apparatus for die-casting systems and machines and methods for opening dies using such die opening/closing apparatus' [patent_app_type] => B2 [patent_app_number] => 10/244305 [patent_app_country] => US [patent_app_date] => 2002-09-16 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 5 [patent_no_of_words] => 4849 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 93 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/06/808/06808007.pdf [firstpage_image] =>[orig_patent_app_number] => 10244305 [rel_patent_id] =>[rel_patent_doc_number] =>)
10/244305
Die opening/closing apparatus for die-casting systems and machines and methods for opening dies using such die opening/closing apparatus Sep 15, 2002 Issued
Array ( [id] => 1016265 [patent_doc_number] => 06889745 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2005-05-10 [patent_title] => 'Method of heating casting mold' [patent_app_type] => utility [patent_app_number] => 10/241819 [patent_app_country] => US [patent_app_date] => 2002-09-10 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 7 [patent_figures_cnt] => 7 [patent_no_of_words] => 5225 [patent_no_of_claims] => 15 [patent_no_of_ind_claims] => 5 [patent_words_short_claim] => 70 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/06/889/06889745.pdf [firstpage_image] =>[orig_patent_app_number] => 10241819 [rel_patent_id] =>[rel_patent_doc_number] =>)
10/241819
Method of heating casting mold Sep 9, 2002 Issued
Array ( [id] => 770601 [patent_doc_number] => 07000677 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2006-02-21 [patent_title] => 'Electromagnetic braking device for the ingot in a continuous casting unit' [patent_app_type] => utility [patent_app_number] => 10/490511 [patent_app_country] => US [patent_app_date] => 2002-09-07 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 2 [patent_figures_cnt] => 2 [patent_no_of_words] => 1276 [patent_no_of_claims] => 7 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 90 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/07/000/07000677.pdf [firstpage_image] =>[orig_patent_app_number] => 10490511 [rel_patent_id] =>[rel_patent_doc_number] =>)
10/490511
Electromagnetic braking device for the ingot in a continuous casting unit Sep 6, 2002 Issued
Array ( [id] => 1116504 [patent_doc_number] => 06796362 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2004-09-28 [patent_title] => 'Apparatus for producing a metallic slurry material for use in semi-solid forming of shaped parts' [patent_app_type] => B2 [patent_app_number] => 10/234008 [patent_app_country] => US [patent_app_date] => 2002-09-03 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 12 [patent_figures_cnt] => 20 [patent_no_of_words] => 17529 [patent_no_of_claims] => 43 [patent_no_of_ind_claims] => 4 [patent_words_short_claim] => 84 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/06/796/06796362.pdf [firstpage_image] =>[orig_patent_app_number] => 10234008 [rel_patent_id] =>[rel_patent_doc_number] =>)
10/234008
Apparatus for producing a metallic slurry material for use in semi-solid forming of shaped parts Sep 2, 2002 Issued
Array ( [id] => 1205892 [patent_doc_number] => 06712119 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2004-03-30 [patent_title] => 'Collected sand processing method' [patent_app_type] => B2 [patent_app_number] => 10/220340 [patent_app_country] => US [patent_app_date] => 2002-08-30 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 4 [patent_no_of_words] => 4795 [patent_no_of_claims] => 27 [patent_no_of_ind_claims] => 5 [patent_words_short_claim] => 120 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/06/712/06712119.pdf [firstpage_image] =>[orig_patent_app_number] => 10220340 [rel_patent_id] =>[rel_patent_doc_number] =>)
10/220340
Collected sand processing method Aug 29, 2002 Issued
Array ( [id] => 1019241 [patent_doc_number] => 06886621 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2005-05-03 [patent_title] => 'Sprue for a lost foam casting system for biasing a directional fill rate from a bottom portion of a metal casting' [patent_app_type] => utility [patent_app_number] => 10/230588 [patent_app_country] => US [patent_app_date] => 2002-08-29 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 5 [patent_figures_cnt] => 5 [patent_no_of_words] => 6868 [patent_no_of_claims] => 5 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 203 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/06/886/06886621.pdf [firstpage_image] =>[orig_patent_app_number] => 10230588 [rel_patent_id] =>[rel_patent_doc_number] =>)
10/230588
Sprue for a lost foam casting system for biasing a directional fill rate from a bottom portion of a metal casting Aug 28, 2002 Issued
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