Search

Tu Ba Hoang

Supervisory Patent Examiner (ID: 2828, Phone: (571)272-4780 , Office: P/3742 )

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

Applications

Application numberTitle of the applicationFiling DateStatus
Array ( [id] => 4074579 [patent_doc_number] => 05896409 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1999-04-20 [patent_title] => 'Fume intake and cooling device for electric arc furnaces' [patent_app_type] => 1 [patent_app_number] => 8/847510 [patent_app_country] => US [patent_app_date] => 1997-04-24 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 2 [patent_figures_cnt] => 9 [patent_no_of_words] => 2593 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 156 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/896/05896409.pdf [firstpage_image] =>[orig_patent_app_number] => 847510 [rel_patent_id] =>[rel_patent_doc_number] =>)
08/847510
Fume intake and cooling device for electric arc furnaces Apr 23, 1997 Issued
Array ( [id] => 3753148 [patent_doc_number] => 05787108 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1998-07-28 [patent_title] => 'Exhaust device for electric arc furnaces and relative method' [patent_app_type] => 1 [patent_app_number] => 8/842821 [patent_app_country] => US [patent_app_date] => 1997-04-17 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 2 [patent_figures_cnt] => 6 [patent_no_of_words] => 2561 [patent_no_of_claims] => 17 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 157 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/787/05787108.pdf [firstpage_image] =>[orig_patent_app_number] => 842821 [rel_patent_id] =>[rel_patent_doc_number] =>)
08/842821
Exhaust device for electric arc furnaces and relative method Apr 16, 1997 Issued
Array ( [id] => 3844203 [patent_doc_number] => 05847376 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1998-12-08 [patent_title] => 'Process and plant for the manufacture of solid castings from an essentially liquid reactive medium, and oven for heating an essentially liquid medium' [patent_app_type] => 1 [patent_app_number] => 8/840561 [patent_app_country] => US [patent_app_date] => 1997-04-15 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 8 [patent_figures_cnt] => 11 [patent_no_of_words] => 8400 [patent_no_of_claims] => 33 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 164 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/847/05847376.pdf [firstpage_image] =>[orig_patent_app_number] => 840561 [rel_patent_id] =>[rel_patent_doc_number] =>)
08/840561
Process and plant for the manufacture of solid castings from an essentially liquid reactive medium, and oven for heating an essentially liquid medium Apr 14, 1997 Issued
Array ( [id] => 3787141 [patent_doc_number] => 05821504 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1998-10-13 [patent_title] => 'Induction heating system for 360.degree. curing of can body coatings' [patent_app_type] => 1 [patent_app_number] => 8/838408 [patent_app_country] => US [patent_app_date] => 1997-04-07 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 7 [patent_figures_cnt] => 10 [patent_no_of_words] => 7169 [patent_no_of_claims] => 46 [patent_no_of_ind_claims] => 5 [patent_words_short_claim] => 80 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/821/05821504.pdf [firstpage_image] =>[orig_patent_app_number] => 838408 [rel_patent_id] =>[rel_patent_doc_number] =>)
08/838408
Induction heating system for 360.degree. curing of can body coatings Apr 6, 1997 Issued
Array ( [id] => 4069240 [patent_doc_number] => 05866881 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1999-02-02 [patent_title] => 'Multi-layer jacket with convection heating means' [patent_app_type] => 1 [patent_app_number] => 8/826565 [patent_app_country] => US [patent_app_date] => 1997-04-04 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 9 [patent_no_of_words] => 3615 [patent_no_of_claims] => 1 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 735 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/866/05866881.pdf [firstpage_image] =>[orig_patent_app_number] => 826565 [rel_patent_id] =>[rel_patent_doc_number] =>)
08/826565
Multi-layer jacket with convection heating means Apr 3, 1997 Issued
Array ( [id] => 3972277 [patent_doc_number] => 05948306 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1999-09-07 [patent_title] => 'Ceramic heater' [patent_app_type] => 1 [patent_app_number] => 8/826144 [patent_app_country] => US [patent_app_date] => 1997-03-27 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 7 [patent_figures_cnt] => 16 [patent_no_of_words] => 5269 [patent_no_of_claims] => 11 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 99 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/948/05948306.pdf [firstpage_image] =>[orig_patent_app_number] => 826144 [rel_patent_id] =>[rel_patent_doc_number] =>)
08/826144
Ceramic heater Mar 26, 1997 Issued
Array ( [id] => 4066389 [patent_doc_number] => 05970083 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1999-10-19 [patent_title] => 'Device for injecting non-oxidizing gas into a furnace' [patent_app_type] => 1 [patent_app_number] => 8/816678 [patent_app_country] => US [patent_app_date] => 1997-03-13 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 2 [patent_figures_cnt] => 4 [patent_no_of_words] => 2196 [patent_no_of_claims] => 8 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 185 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/970/05970083.pdf [firstpage_image] =>[orig_patent_app_number] => 816678 [rel_patent_id] =>[rel_patent_doc_number] =>)
08/816678
Device for injecting non-oxidizing gas into a furnace Mar 12, 1997 Issued
Array ( [id] => 3744427 [patent_doc_number] => 05753893 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1998-05-19 [patent_title] => 'Alumina-based sintered material for ceramic heater' [patent_app_type] => 1 [patent_app_number] => 8/815586 [patent_app_country] => US [patent_app_date] => 1997-03-12 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 2 [patent_figures_cnt] => 2 [patent_no_of_words] => 7102 [patent_no_of_claims] => 6 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 204 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/753/05753893.pdf [firstpage_image] =>[orig_patent_app_number] => 815586 [rel_patent_id] =>[rel_patent_doc_number] =>)
08/815586
Alumina-based sintered material for ceramic heater Mar 11, 1997 Issued
Array ( [id] => 3941691 [patent_doc_number] => 05953363 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1999-09-14 [patent_title] => 'Bushing for minimizing power losses in a channel inductor' [patent_app_type] => 1 [patent_app_number] => 8/814421 [patent_app_country] => US [patent_app_date] => 1997-03-10 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 7 [patent_figures_cnt] => 10 [patent_no_of_words] => 2580 [patent_no_of_claims] => 24 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 120 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/953/05953363.pdf [firstpage_image] =>[orig_patent_app_number] => 814421 [rel_patent_id] =>[rel_patent_doc_number] =>)
08/814421
Bushing for minimizing power losses in a channel inductor Mar 9, 1997 Issued
Array ( [id] => 4053342 [patent_doc_number] => 05869817 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1999-02-09 [patent_title] => 'Tunable cavity microwave applicator' [patent_app_type] => 1 [patent_app_number] => 8/813818 [patent_app_country] => US [patent_app_date] => 1997-03-06 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 8 [patent_figures_cnt] => 12 [patent_no_of_words] => 10683 [patent_no_of_claims] => 43 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 116 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/869/05869817.pdf [firstpage_image] =>[orig_patent_app_number] => 813818 [rel_patent_id] =>[rel_patent_doc_number] =>)
08/813818
Tunable cavity microwave applicator Mar 5, 1997 Issued
Array ( [id] => 3973617 [patent_doc_number] => 05958274 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1999-09-28 [patent_title] => 'Jet impingement batch oven' [patent_app_type] => 1 [patent_app_number] => 8/811938 [patent_app_country] => US [patent_app_date] => 1997-03-05 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 9 [patent_figures_cnt] => 17 [patent_no_of_words] => 5107 [patent_no_of_claims] => 19 [patent_no_of_ind_claims] => 4 [patent_words_short_claim] => 82 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/958/05958274.pdf [firstpage_image] =>[orig_patent_app_number] => 811938 [rel_patent_id] =>[rel_patent_doc_number] =>)
08/811938
Jet impingement batch oven Mar 4, 1997 Issued
Array ( [id] => 3963649 [patent_doc_number] => 05956366 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1999-09-21 [patent_title] => 'Arc furnace and method in which molten material is stirred and the arc is guided' [patent_app_type] => 1 [patent_app_number] => 8/807803 [patent_app_country] => US [patent_app_date] => 1997-02-26 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 10 [patent_figures_cnt] => 11 [patent_no_of_words] => 3417 [patent_no_of_claims] => 14 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 146 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/956/05956366.pdf [firstpage_image] =>[orig_patent_app_number] => 807803 [rel_patent_id] =>[rel_patent_doc_number] =>)
08/807803
Arc furnace and method in which molten material is stirred and the arc is guided Feb 25, 1997 Issued
Array ( [id] => 7064354 [patent_doc_number] => 20010043640 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2001-11-22 [patent_title] => 'METHOD AND APPARATUS FOR HEATING MATERIALS' [patent_app_type] => new [patent_app_number] => 08/806848 [patent_app_country] => US [patent_app_date] => 1997-02-26 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 9 [patent_figures_cnt] => 9 [patent_no_of_words] => 3630 [patent_no_of_claims] => 16 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 92 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] => publications/A1/0043/20010043640.pdf [firstpage_image] =>[orig_patent_app_number] => 08806848 [rel_patent_id] =>[rel_patent_doc_number] =>)
08/806848
METHOD AND APPARATUS FOR HEATING MATERIALS Feb 25, 1997 Abandoned
Array ( [id] => 3897920 [patent_doc_number] => 05894541 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1999-04-13 [patent_title] => 'Electric heater assembly' [patent_app_type] => 1 [patent_app_number] => 8/801769 [patent_app_country] => US [patent_app_date] => 1997-02-18 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 1 [patent_figures_cnt] => 1 [patent_no_of_words] => 2900 [patent_no_of_claims] => 26 [patent_no_of_ind_claims] => 4 [patent_words_short_claim] => 95 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/894/05894541.pdf [firstpage_image] =>[orig_patent_app_number] => 801769 [rel_patent_id] =>[rel_patent_doc_number] =>)
08/801769
Electric heater assembly Feb 17, 1997 Issued
Array ( [id] => 4013906 [patent_doc_number] => 05987054 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1999-11-16 [patent_title] => 'Induction coil and coreless induction furnace employing same' [patent_app_type] => 1 [patent_app_number] => 8/797148 [patent_app_country] => US [patent_app_date] => 1997-02-10 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 6 [patent_figures_cnt] => 9 [patent_no_of_words] => 4386 [patent_no_of_claims] => 24 [patent_no_of_ind_claims] => 6 [patent_words_short_claim] => 109 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/987/05987054.pdf [firstpage_image] =>[orig_patent_app_number] => 797148 [rel_patent_id] =>[rel_patent_doc_number] =>)
08/797148
Induction coil and coreless induction furnace employing same Feb 9, 1997 Issued
Array ( [id] => 4029514 [patent_doc_number] => 05907662 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1999-05-25 [patent_title] => 'Electrode wells for powerline-frequency electrical heating of soils' [patent_app_type] => 1 [patent_app_number] => 8/794219 [patent_app_country] => US [patent_app_date] => 1997-01-30 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 2 [patent_figures_cnt] => 4 [patent_no_of_words] => 3768 [patent_no_of_claims] => 24 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 87 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/907/05907662.pdf [firstpage_image] =>[orig_patent_app_number] => 794219 [rel_patent_id] =>[rel_patent_doc_number] =>)
08/794219
Electrode wells for powerline-frequency electrical heating of soils Jan 29, 1997 Issued
Array ( [id] => 3906759 [patent_doc_number] => 05835525 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1998-11-10 [patent_title] => 'Furnaces and linings having segments with surfaces configured to absorb and reradiate heat' [patent_app_type] => 1 [patent_app_number] => 8/732504 [patent_app_country] => US [patent_app_date] => 1997-01-30 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 7 [patent_figures_cnt] => 8 [patent_no_of_words] => 4200 [patent_no_of_claims] => 8 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 85 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/835/05835525.pdf [firstpage_image] =>[orig_patent_app_number] => 732504 [rel_patent_id] =>[rel_patent_doc_number] =>)
08/732504
Furnaces and linings having segments with surfaces configured to absorb and reradiate heat Jan 29, 1997 Issued
Array ( [id] => 3745127 [patent_doc_number] => 05786565 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1998-07-28 [patent_title] => 'Match head ceramic igniter and method of using same' [patent_app_type] => 1 [patent_app_number] => 8/789033 [patent_app_country] => US [patent_app_date] => 1997-01-27 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 5 [patent_figures_cnt] => 9 [patent_no_of_words] => 4915 [patent_no_of_claims] => 24 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 70 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/786/05786565.pdf [firstpage_image] =>[orig_patent_app_number] => 789033 [rel_patent_id] =>[rel_patent_doc_number] =>)
08/789033
Match head ceramic igniter and method of using same Jan 26, 1997 Issued
Array ( [id] => 3952121 [patent_doc_number] => 05930284 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1999-07-27 [patent_title] => 'Multiple input electrode gap controller' [patent_app_type] => 1 [patent_app_number] => 8/784334 [patent_app_country] => US [patent_app_date] => 1997-01-15 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 7 [patent_figures_cnt] => 17 [patent_no_of_words] => 10241 [patent_no_of_claims] => 18 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 70 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/930/05930284.pdf [firstpage_image] =>[orig_patent_app_number] => 784334 [rel_patent_id] =>[rel_patent_doc_number] =>)
08/784334
Multiple input electrode gap controller Jan 14, 1997 Issued
Array ( [id] => 4040014 [patent_doc_number] => 05903591 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1999-05-11 [patent_title] => 'Apparatus and process for activation of carbonaceous char or reactivation of spent carbon by electrical resistance heating' [patent_app_type] => 1 [patent_app_number] => 8/784013 [patent_app_country] => US [patent_app_date] => 1997-01-15 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 2 [patent_figures_cnt] => 2 [patent_no_of_words] => 2379 [patent_no_of_claims] => 7 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 266 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/903/05903591.pdf [firstpage_image] =>[orig_patent_app_number] => 784013 [rel_patent_id] =>[rel_patent_doc_number] =>)
08/784013
Apparatus and process for activation of carbonaceous char or reactivation of spent carbon by electrical resistance heating Jan 14, 1997 Issued
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