Search

Tu Ba Hoang

Supervisory Patent Examiner (ID: 6919, Phone: (571)272-4780 , Office: P/3742 )

Most Active Art Unit
3761
Art Unit(s)
3761, 2106, 3742, 2832
Total Applications
2049
Issued Applications
1536
Pending Applications
181
Abandoned Applications
331

Applications

Application numberTitle of the applicationFiling DateStatus
Array ( [id] => 4267799 [patent_doc_number] => 06208682 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 2001-03-27 [patent_title] => 'Channel inductor and melt furnace comprising such channel inductor' [patent_app_type] => 1 [patent_app_number] => 9/446173 [patent_app_country] => US [patent_app_date] => 1999-12-16 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 2 [patent_figures_cnt] => 5 [patent_no_of_words] => 3722 [patent_no_of_claims] => 19 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 107 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/06/208/06208682.pdf [firstpage_image] =>[orig_patent_app_number] => 446173 [rel_patent_id] =>[rel_patent_doc_number] =>)
09/446173
Channel inductor and melt furnace comprising such channel inductor Dec 15, 1999 Issued
Array ( [id] => 651491 [patent_doc_number] => 07113069 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2006-09-26 [patent_title] => 'Aligned particle based sensor elements' [patent_app_type] => utility [patent_app_number] => 09/600346 [patent_app_country] => US [patent_app_date] => 1999-11-30 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 3 [patent_no_of_words] => 6500 [patent_no_of_claims] => 33 [patent_no_of_ind_claims] => 4 [patent_words_short_claim] => 97 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/07/113/07113069.pdf [firstpage_image] =>[orig_patent_app_number] => 09600346 [rel_patent_id] =>[rel_patent_doc_number] =>)
09/600346
Aligned particle based sensor elements Nov 29, 1999 Issued
09/424931 SUPPORT FOR COMPUTER POINTING DEVICES Nov 29, 1999 Abandoned
Array ( [id] => 4252331 [patent_doc_number] => 06137083 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 2000-10-24 [patent_title] => 'Device for heating an aerofoil' [patent_app_type] => 1 [patent_app_number] => 9/450170 [patent_app_country] => US [patent_app_date] => 1999-11-29 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 2 [patent_figures_cnt] => 9 [patent_no_of_words] => 2348 [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/06/137/06137083.pdf [firstpage_image] =>[orig_patent_app_number] => 450170 [rel_patent_id] =>[rel_patent_doc_number] =>)
09/450170
Device for heating an aerofoil Nov 28, 1999 Issued
Array ( [id] => 7630389 [patent_doc_number] => 06636548 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2003-10-21 [patent_title] => 'Bottom electrode structure of electric arc furnace' [patent_app_type] => B1 [patent_app_number] => 09/450928 [patent_app_country] => US [patent_app_date] => 1999-11-29 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 13 [patent_figures_cnt] => 13 [patent_no_of_words] => 2718 [patent_no_of_claims] => 19 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 12 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/06/636/06636548.pdf [firstpage_image] =>[orig_patent_app_number] => 09450928 [rel_patent_id] =>[rel_patent_doc_number] =>)
09/450928
Bottom electrode structure of electric arc furnace Nov 28, 1999 Issued
Array ( [id] => 1562913 [patent_doc_number] => 06362461 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2002-03-26 [patent_title] => 'Method and device for induction sealing' [patent_app_type] => B1 [patent_app_number] => 09/367793 [patent_app_country] => US [patent_app_date] => 1999-11-27 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 5 [patent_no_of_words] => 4011 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 5 [patent_words_short_claim] => 122 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/06/362/06362461.pdf [firstpage_image] =>[orig_patent_app_number] => 09367793 [rel_patent_id] =>[rel_patent_doc_number] =>)
09/367793
Method and device for induction sealing Nov 26, 1999 Issued
Array ( [id] => 4369182 [patent_doc_number] => 06201826 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 2001-03-13 [patent_title] => 'Loading system for electric arc furnaces' [patent_app_type] => 1 [patent_app_number] => 9/424489 [patent_app_country] => US [patent_app_date] => 1999-11-23 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 5 [patent_figures_cnt] => 10 [patent_no_of_words] => 5014 [patent_no_of_claims] => 13 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 352 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/06/201/06201826.pdf [firstpage_image] =>[orig_patent_app_number] => 424489 [rel_patent_id] =>[rel_patent_doc_number] =>)
09/424489
Loading system for electric arc furnaces Nov 22, 1999 Issued
Array ( [id] => 4372402 [patent_doc_number] => 06274855 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 2001-08-14 [patent_title] => 'Heating resistor for ceramic heaters, ceramic heaters and method of manufacturing ceramic heaters' [patent_app_type] => 1 [patent_app_number] => 9/441207 [patent_app_country] => US [patent_app_date] => 1999-11-16 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 1 [patent_figures_cnt] => 3 [patent_no_of_words] => 6665 [patent_no_of_claims] => 7 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 122 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/06/274/06274855.pdf [firstpage_image] =>[orig_patent_app_number] => 441207 [rel_patent_id] =>[rel_patent_doc_number] =>)
09/441207
Heating resistor for ceramic heaters, ceramic heaters and method of manufacturing ceramic heaters Nov 15, 1999 Issued
Array ( [id] => 4425756 [patent_doc_number] => 06178191 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 2001-01-23 [patent_title] => 'Method for determination of the tip position of consumable electrodes used in electric smelting furnaces' [patent_app_type] => 1 [patent_app_number] => 9/423959 [patent_app_country] => US [patent_app_date] => 1999-11-15 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 2 [patent_figures_cnt] => 3 [patent_no_of_words] => 1520 [patent_no_of_claims] => 4 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 164 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/06/178/06178191.pdf [firstpage_image] =>[orig_patent_app_number] => 423959 [rel_patent_id] =>[rel_patent_doc_number] =>)
09/423959
Method for determination of the tip position of consumable electrodes used in electric smelting furnaces Nov 14, 1999 Issued
Array ( [id] => 4097000 [patent_doc_number] => 06163562 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 2000-12-19 [patent_title] => 'Induction oven for melting metals' [patent_app_type] => 1 [patent_app_number] => 9/423732 [patent_app_country] => US [patent_app_date] => 1999-11-12 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 5 [patent_figures_cnt] => 11 [patent_no_of_words] => 3553 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 255 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/06/163/06163562.pdf [firstpage_image] =>[orig_patent_app_number] => 423732 [rel_patent_id] =>[rel_patent_doc_number] =>)
09/423732
Induction oven for melting metals Nov 11, 1999 Issued
Array ( [id] => 4293194 [patent_doc_number] => 06211491 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 2001-04-03 [patent_title] => 'Anti-fogging glass' [patent_app_type] => 1 [patent_app_number] => 9/435609 [patent_app_country] => US [patent_app_date] => 1999-11-08 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 8 [patent_figures_cnt] => 8 [patent_no_of_words] => 7364 [patent_no_of_claims] => 10 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 140 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/06/211/06211491.pdf [firstpage_image] =>[orig_patent_app_number] => 435609 [rel_patent_id] =>[rel_patent_doc_number] =>)
09/435609
Anti-fogging glass Nov 7, 1999 Issued
Array ( [id] => 4375612 [patent_doc_number] => 06288372 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 2001-09-11 [patent_title] => 'Electric cable having braidless polymeric ground plane providing fault detection' [patent_app_type] => 1 [patent_app_number] => 9/432688 [patent_app_country] => US [patent_app_date] => 1999-11-03 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 14 [patent_no_of_words] => 7076 [patent_no_of_claims] => 29 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 81 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/06/288/06288372.pdf [firstpage_image] =>[orig_patent_app_number] => 432688 [rel_patent_id] =>[rel_patent_doc_number] =>)
09/432688
Electric cable having braidless polymeric ground plane providing fault detection Nov 2, 1999 Issued
Array ( [id] => 4194205 [patent_doc_number] => 06153865 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 2000-11-28 [patent_title] => 'Induction hardening apparatus for a crankshaft' [patent_app_type] => 1 [patent_app_number] => 9/431723 [patent_app_country] => US [patent_app_date] => 1999-11-01 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 27 [patent_figures_cnt] => 40 [patent_no_of_words] => 16291 [patent_no_of_claims] => 11 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 108 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/06/153/06153865.pdf [firstpage_image] =>[orig_patent_app_number] => 431723 [rel_patent_id] =>[rel_patent_doc_number] =>)
09/431723
Induction hardening apparatus for a crankshaft Oct 31, 1999 Issued
Array ( [id] => 4308931 [patent_doc_number] => 06326596 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 2001-12-04 [patent_title] => 'Systems and methods for controlling power applied to a resistor array' [patent_app_type] => 1 [patent_app_number] => 9/431653 [patent_app_country] => US [patent_app_date] => 1999-11-01 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 5 [patent_figures_cnt] => 4 [patent_no_of_words] => 4080 [patent_no_of_claims] => 33 [patent_no_of_ind_claims] => 6 [patent_words_short_claim] => 92 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/06/326/06326596.pdf [firstpage_image] =>[orig_patent_app_number] => 431653 [rel_patent_id] =>[rel_patent_doc_number] =>)
09/431653
Systems and methods for controlling power applied to a resistor array Oct 31, 1999 Issued
Array ( [id] => 4373736 [patent_doc_number] => 06192065 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 2001-02-20 [patent_title] => 'Method and apparatus for controlling arcing in a DC arc furnace' [patent_app_type] => 1 [patent_app_number] => 9/428919 [patent_app_country] => US [patent_app_date] => 1999-10-28 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 5 [patent_figures_cnt] => 6 [patent_no_of_words] => 3465 [patent_no_of_claims] => 18 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 75 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/06/192/06192065.pdf [firstpage_image] =>[orig_patent_app_number] => 428919 [rel_patent_id] =>[rel_patent_doc_number] =>)
09/428919
Method and apparatus for controlling arcing in a DC arc furnace Oct 27, 1999 Issued
Array ( [id] => 4365069 [patent_doc_number] => 06255622 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 2001-07-03 [patent_title] => 'Electronic device having external surface thermal feedback' [patent_app_type] => 1 [patent_app_number] => 9/429498 [patent_app_country] => US [patent_app_date] => 1999-10-27 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 8 [patent_figures_cnt] => 9 [patent_no_of_words] => 3649 [patent_no_of_claims] => 36 [patent_no_of_ind_claims] => 9 [patent_words_short_claim] => 71 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/06/255/06255622.pdf [firstpage_image] =>[orig_patent_app_number] => 429498 [rel_patent_id] =>[rel_patent_doc_number] =>)
09/429498
Electronic device having external surface thermal feedback Oct 26, 1999 Issued
Array ( [id] => 4096972 [patent_doc_number] => 06163560 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 2000-12-19 [patent_title] => 'Method to process fumes and relative device' [patent_app_type] => 1 [patent_app_number] => 9/403300 [patent_app_country] => US [patent_app_date] => 1999-10-20 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 2 [patent_figures_cnt] => 5 [patent_no_of_words] => 3133 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 159 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/06/163/06163560.pdf [firstpage_image] =>[orig_patent_app_number] => 403300 [rel_patent_id] =>[rel_patent_doc_number] =>)
09/403300
Method to process fumes and relative device Oct 19, 1999 Issued
Array ( [id] => 4324037 [patent_doc_number] => 06248983 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 2001-06-19 [patent_title] => 'Heater control apparatus with variable input voltage rectification' [patent_app_type] => 1 [patent_app_number] => 9/422522 [patent_app_country] => US [patent_app_date] => 1999-10-20 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 13 [patent_figures_cnt] => 14 [patent_no_of_words] => 6189 [patent_no_of_claims] => 9 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 107 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/06/248/06248983.pdf [firstpage_image] =>[orig_patent_app_number] => 422522 [rel_patent_id] =>[rel_patent_doc_number] =>)
09/422522
Heater control apparatus with variable input voltage rectification Oct 19, 1999 Issued
Array ( [id] => 4426709 [patent_doc_number] => 06226313 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 2001-05-01 [patent_title] => 'Power source circuit and its control for three-phase electric arc furnace to reduce flicker' [patent_app_type] => 1 [patent_app_number] => 9/419654 [patent_app_country] => US [patent_app_date] => 1999-10-18 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 3 [patent_no_of_words] => 2138 [patent_no_of_claims] => 7 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 83 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/06/226/06226313.pdf [firstpage_image] =>[orig_patent_app_number] => 419654 [rel_patent_id] =>[rel_patent_doc_number] =>)
09/419654
Power source circuit and its control for three-phase electric arc furnace to reduce flicker Oct 17, 1999 Issued
Array ( [id] => 4146981 [patent_doc_number] => 06148019 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 2000-11-14 [patent_title] => 'Modular high power induction heating and melting system' [patent_app_type] => 1 [patent_app_number] => 9/418884 [patent_app_country] => US [patent_app_date] => 1999-10-15 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 7 [patent_figures_cnt] => 9 [patent_no_of_words] => 3321 [patent_no_of_claims] => 19 [patent_no_of_ind_claims] => 6 [patent_words_short_claim] => 156 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/06/148/06148019.pdf [firstpage_image] =>[orig_patent_app_number] => 418884 [rel_patent_id] =>[rel_patent_doc_number] =>)
09/418884
Modular high power induction heating and melting system Oct 14, 1999 Issued
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