Search

Len Tran

Supervisory Patent Examiner (ID: 11119, Phone: (571)272-1184 , Office: P/3744 )

Most Active Art Unit
1725
Art Unit(s)
3744, 1725, 3752, 1722, 3763
Total Applications
860
Issued Applications
532
Pending Applications
72
Abandoned Applications
260

Applications

Application numberTitle of the applicationFiling DateStatus
Array ( [id] => 4245548 [patent_doc_number] => 06305288 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 2001-10-23 [patent_title] => 'Propellant charge module' [patent_app_type] => 1 [patent_app_number] => 9/485347 [patent_app_country] => US [patent_app_date] => 2000-03-14 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 2 [patent_figures_cnt] => 6 [patent_no_of_words] => 2007 [patent_no_of_claims] => 8 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 40 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/06/305/06305288.pdf [firstpage_image] =>[orig_patent_app_number] => 485347 [rel_patent_id] =>[rel_patent_doc_number] =>)
09/485347
Propellant charge module Mar 13, 2000 Issued
09/508543 SETTING OF TIME DELAYS IN A SEQUENCE OF EXPLOSIVE DETONATIONS Mar 9, 2000 Abandoned
Array ( [id] => 1259133 [patent_doc_number] => 06659012 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2003-12-09 [patent_title] => 'Ejection device for ejecting a plurality of submunitions and associated discharging unit' [patent_app_type] => B1 [patent_app_number] => 09/521414 [patent_app_country] => US [patent_app_date] => 2000-03-08 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 5 [patent_no_of_words] => 2983 [patent_no_of_claims] => 33 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 60 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/06/659/06659012.pdf [firstpage_image] =>[orig_patent_app_number] => 09521414 [rel_patent_id] =>[rel_patent_doc_number] =>)
09/521414
Ejection device for ejecting a plurality of submunitions and associated discharging unit Mar 7, 2000 Issued
Array ( [id] => 1452942 [patent_doc_number] => 06389973 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2002-05-21 [patent_title] => 'Blasting apparatus and blasting method' [patent_app_type] => B1 [patent_app_number] => 09/508013 [patent_app_country] => US [patent_app_date] => 2000-03-06 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 2 [patent_figures_cnt] => 2 [patent_no_of_words] => 2376 [patent_no_of_claims] => 2 [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/06/389/06389973.pdf [firstpage_image] =>[orig_patent_app_number] => 09508013 [rel_patent_id] =>[rel_patent_doc_number] =>)
09/508013
Blasting apparatus and blasting method Mar 5, 2000 Issued
Array ( [id] => 7638213 [patent_doc_number] => 06378438 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2002-04-30 [patent_title] => 'Shape charge assembly system' [patent_app_type] => B1 [patent_app_number] => 09/514549 [patent_app_country] => US [patent_app_date] => 2000-02-28 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 7 [patent_figures_cnt] => 16 [patent_no_of_words] => 7059 [patent_no_of_claims] => 39 [patent_no_of_ind_claims] => 4 [patent_words_short_claim] => 6 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/06/378/06378438.pdf [firstpage_image] =>[orig_patent_app_number] => 09514549 [rel_patent_id] =>[rel_patent_doc_number] =>)
09/514549
Shape charge assembly system Feb 27, 2000 Issued
Array ( [id] => 4312196 [patent_doc_number] => 06330860 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 2001-12-18 [patent_title] => 'Method of blasting using air tubes charged in a blasthole' [patent_app_type] => 1 [patent_app_number] => 9/512192 [patent_app_country] => US [patent_app_date] => 2000-02-24 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 20 [patent_figures_cnt] => 20 [patent_no_of_words] => 6013 [patent_no_of_claims] => 15 [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/06/330/06330860.pdf [firstpage_image] =>[orig_patent_app_number] => 512192 [rel_patent_id] =>[rel_patent_doc_number] =>)
09/512192
Method of blasting using air tubes charged in a blasthole Feb 23, 2000 Issued
Array ( [id] => 4388713 [patent_doc_number] => 06298785 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 2001-10-09 [patent_title] => 'Blasting apparatus' [patent_app_type] => 1 [patent_app_number] => 9/486304 [patent_app_country] => US [patent_app_date] => 2000-02-24 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 5 [patent_figures_cnt] => 5 [patent_no_of_words] => 5257 [patent_no_of_claims] => 5 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 36 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/06/298/06298785.pdf [firstpage_image] =>[orig_patent_app_number] => 486304 [rel_patent_id] =>[rel_patent_doc_number] =>)
09/486304
Blasting apparatus Feb 23, 2000 Issued
Array ( [id] => 4284561 [patent_doc_number] => 06324981 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 2001-12-04 [patent_title] => 'Pyrotechnic projectile for producing continuous patterns in the sky' [patent_app_type] => 1 [patent_app_number] => 9/445848 [patent_app_country] => US [patent_app_date] => 2000-02-24 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 2 [patent_figures_cnt] => 4 [patent_no_of_words] => 1266 [patent_no_of_claims] => 6 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 82 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/06/324/06324981.pdf [firstpage_image] =>[orig_patent_app_number] => 445848 [rel_patent_id] =>[rel_patent_doc_number] =>)
09/445848
Pyrotechnic projectile for producing continuous patterns in the sky Feb 23, 2000 Issued
Array ( [id] => 7638215 [patent_doc_number] => 06378436 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2002-04-30 [patent_title] => 'Portable propellant cutting assembly, and method of cutting propellant with assembly' [patent_app_type] => B1 [patent_app_number] => 09/506597 [patent_app_country] => US [patent_app_date] => 2000-02-18 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 5 [patent_no_of_words] => 1863 [patent_no_of_claims] => 9 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 23 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/06/378/06378436.pdf [firstpage_image] =>[orig_patent_app_number] => 09506597 [rel_patent_id] =>[rel_patent_doc_number] =>)
09/506597
Portable propellant cutting assembly, and method of cutting propellant with assembly Feb 17, 2000 Issued
Array ( [id] => 1341657 [patent_doc_number] => 06571713 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2003-06-03 [patent_title] => 'Gas generator, vessel therefor and method of manufacturing the vessel' [patent_app_type] => B1 [patent_app_number] => 09/497165 [patent_app_country] => US [patent_app_date] => 2000-02-03 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 8 [patent_no_of_words] => 1627 [patent_no_of_claims] => 11 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 106 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/06/571/06571713.pdf [firstpage_image] =>[orig_patent_app_number] => 09497165 [rel_patent_id] =>[rel_patent_doc_number] =>)
09/497165
Gas generator, vessel therefor and method of manufacturing the vessel Feb 2, 2000 Issued
Array ( [id] => 1448579 [patent_doc_number] => 06460463 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2002-10-08 [patent_title] => 'Shaped recesses in explosive carrier housings that provide for improved explosive performance in a well' [patent_app_type] => B1 [patent_app_number] => 09/498244 [patent_app_country] => US [patent_app_date] => 2000-02-03 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 12 [patent_figures_cnt] => 37 [patent_no_of_words] => 5661 [patent_no_of_claims] => 33 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 52 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/06/460/06460463.pdf [firstpage_image] =>[orig_patent_app_number] => 09498244 [rel_patent_id] =>[rel_patent_doc_number] =>)
09/498244
Shaped recesses in explosive carrier housings that provide for improved explosive performance in a well Feb 2, 2000 Issued
Array ( [id] => 1398971 [patent_doc_number] => 06508176 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2003-01-21 [patent_title] => 'Accumulated detonating cord explosive charge and method of making and of use of the same' [patent_app_type] => B1 [patent_app_number] => 09/488225 [patent_app_country] => US [patent_app_date] => 2000-01-19 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 5 [patent_figures_cnt] => 7 [patent_no_of_words] => 6920 [patent_no_of_claims] => 13 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 26 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/06/508/06508176.pdf [firstpage_image] =>[orig_patent_app_number] => 09488225 [rel_patent_id] =>[rel_patent_doc_number] =>)
09/488225
Accumulated detonating cord explosive charge and method of making and of use of the same Jan 18, 2000 Issued
Array ( [id] => 1469092 [patent_doc_number] => 06386111 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2002-05-14 [patent_title] => 'Stemming arrangement and method for blast holes' [patent_app_type] => B1 [patent_app_number] => 09/483330 [patent_app_country] => US [patent_app_date] => 2000-01-14 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 3 [patent_no_of_words] => 2844 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 146 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/06/386/06386111.pdf [firstpage_image] =>[orig_patent_app_number] => 09483330 [rel_patent_id] =>[rel_patent_doc_number] =>)
09/483330
Stemming arrangement and method for blast holes Jan 13, 2000 Issued
Array ( [id] => 1543671 [patent_doc_number] => 06397752 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2002-06-04 [patent_title] => 'Method and apparatus for coupling explosive devices' [patent_app_type] => B1 [patent_app_number] => 09/481913 [patent_app_country] => US [patent_app_date] => 2000-01-12 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 5 [patent_figures_cnt] => 8 [patent_no_of_words] => 4053 [patent_no_of_claims] => 18 [patent_no_of_ind_claims] => 5 [patent_words_short_claim] => 91 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/06/397/06397752.pdf [firstpage_image] =>[orig_patent_app_number] => 09481913 [rel_patent_id] =>[rel_patent_doc_number] =>)
09/481913
Method and apparatus for coupling explosive devices Jan 11, 2000 Issued
Array ( [id] => 4207056 [patent_doc_number] => 06110307 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 2000-08-29 [patent_title] => 'Compacting process and compacting means and device suitable for the compacting of materials with a pyrophoric tendency' [patent_app_type] => 1 [patent_app_number] => 9/459000 [patent_app_country] => US [patent_app_date] => 1999-12-10 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 5 [patent_figures_cnt] => 9 [patent_no_of_words] => 5971 [patent_no_of_claims] => 9 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 30 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/06/110/06110307.pdf [firstpage_image] =>[orig_patent_app_number] => 459000 [rel_patent_id] =>[rel_patent_doc_number] =>)
09/459000
Compacting process and compacting means and device suitable for the compacting of materials with a pyrophoric tendency Dec 9, 1999 Issued
09/380212 EXPLOSIVE PERFORATING DEVICE FOR WELLS Dec 1, 1999 Abandoned
Array ( [id] => 4370331 [patent_doc_number] => 06302979 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 2001-10-16 [patent_title] => 'Gas generant composition' [patent_app_type] => 1 [patent_app_number] => 9/447432 [patent_app_country] => US [patent_app_date] => 1999-11-23 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 8463 [patent_no_of_claims] => 15 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 49 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/06/302/06302979.pdf [firstpage_image] =>[orig_patent_app_number] => 447432 [rel_patent_id] =>[rel_patent_doc_number] =>)
09/447432
Gas generant composition Nov 22, 1999 Issued
Array ( [id] => 1445808 [patent_doc_number] => 06453817 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2002-09-24 [patent_title] => 'Shaped charge capsule' [patent_app_type] => B1 [patent_app_number] => 09/442668 [patent_app_country] => US [patent_app_date] => 1999-11-18 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 6 [patent_no_of_words] => 1867 [patent_no_of_claims] => 28 [patent_no_of_ind_claims] => 6 [patent_words_short_claim] => 42 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/06/453/06453817.pdf [firstpage_image] =>[orig_patent_app_number] => 09442668 [rel_patent_id] =>[rel_patent_doc_number] =>)
09/442668
Shaped charge capsule Nov 17, 1999 Issued
Array ( [id] => 1543678 [patent_doc_number] => 06397754 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2002-06-04 [patent_title] => 'Method and apparatus for charging boreholes with explosives' [patent_app_type] => B1 [patent_app_number] => 09/424016 [patent_app_country] => US [patent_app_date] => 1999-11-18 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 2 [patent_figures_cnt] => 5 [patent_no_of_words] => 5433 [patent_no_of_claims] => 17 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 152 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/06/397/06397754.pdf [firstpage_image] =>[orig_patent_app_number] => 09424016 [rel_patent_id] =>[rel_patent_doc_number] =>)
09/424016
Method and apparatus for charging boreholes with explosives Nov 17, 1999 Issued
Array ( [id] => 1579516 [patent_doc_number] => 06357356 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2002-03-19 [patent_title] => 'Electric blasting device using aluminum foil' [patent_app_type] => B1 [patent_app_number] => 09/442767 [patent_app_country] => US [patent_app_date] => 1999-11-18 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 2 [patent_figures_cnt] => 3 [patent_no_of_words] => 1239 [patent_no_of_claims] => 13 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 166 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/06/357/06357356.pdf [firstpage_image] =>[orig_patent_app_number] => 09442767 [rel_patent_id] =>[rel_patent_doc_number] =>)
09/442767
Electric blasting device using aluminum foil Nov 17, 1999 Issued
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