
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 number | Title of the application | Filing Date | Status |
|---|---|---|---|
Array
(
[id] => 3639788
[patent_doc_number] => 05687187
[patent_country] => US
[patent_kind] => NA
[patent_issue_date] => 1997-11-11
[patent_title] => 'Process and device for regulating the position of the tip of an electric furnace electrode'
[patent_app_type] => 1
[patent_app_number] => 8/652585
[patent_app_country] => US
[patent_app_date] => 1996-07-18
[patent_effective_date] => 0000-00-00
[patent_drawing_sheets_cnt] => 2
[patent_figures_cnt] => 2
[patent_no_of_words] => 2373
[patent_no_of_claims] => 11
[patent_no_of_ind_claims] => 2
[patent_words_short_claim] => 126
[patent_maintenance] => 1
[patent_no_of_assignments] => 0
[patent_current_assignee] =>[type] => patent
[pdf_file] => patents/05/687/05687187.pdf
[firstpage_image] =>[orig_patent_app_number] => 652585
[rel_patent_id] =>[rel_patent_doc_number] =>) 08/652585 | Process and device for regulating the position of the tip of an electric furnace electrode | Jul 17, 1996 | Issued |
Array
(
[id] => 3987577
[patent_doc_number] => 05905752
[patent_country] => US
[patent_kind] => NA
[patent_issue_date] => 1999-05-18
[patent_title] => 'ARC furnace fume collection system and method'
[patent_app_type] => 1
[patent_app_number] => 8/680145
[patent_app_country] => US
[patent_app_date] => 1996-07-15
[patent_effective_date] => 0000-00-00
[patent_drawing_sheets_cnt] => 13
[patent_figures_cnt] => 30
[patent_no_of_words] => 16595
[patent_no_of_claims] => 12
[patent_no_of_ind_claims] => 4
[patent_words_short_claim] => 218
[patent_maintenance] => 1
[patent_no_of_assignments] => 0
[patent_current_assignee] =>[type] => patent
[pdf_file] => patents/05/905/05905752.pdf
[firstpage_image] =>[orig_patent_app_number] => 680145
[rel_patent_id] =>[rel_patent_doc_number] =>) 08/680145 | ARC furnace fume collection system and method | Jul 14, 1996 | Issued |
Array
(
[id] => 3943259
[patent_doc_number] => 05973302
[patent_country] => US
[patent_kind] => NA
[patent_issue_date] => 1999-10-26
[patent_title] => 'Environment control apparatus for use with a portable computer'
[patent_app_type] => 1
[patent_app_number] => 8/679720
[patent_app_country] => US
[patent_app_date] => 1996-07-12
[patent_effective_date] => 0000-00-00
[patent_drawing_sheets_cnt] => 11
[patent_figures_cnt] => 19
[patent_no_of_words] => 2100
[patent_no_of_claims] => 21
[patent_no_of_ind_claims] => 3
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[patent_maintenance] => 1
[patent_no_of_assignments] => 0
[patent_current_assignee] =>[type] => patent
[pdf_file] => patents/05/973/05973302.pdf
[firstpage_image] =>[orig_patent_app_number] => 679720
[rel_patent_id] =>[rel_patent_doc_number] =>) 08/679720 | Environment control apparatus for use with a portable computer | Jul 11, 1996 | Issued |
Array
(
[id] => 3891361
[patent_doc_number] => 05729569
[patent_country] => US
[patent_kind] => NA
[patent_issue_date] => 1998-03-17
[patent_title] => 'Submerged arc furnace with vertically movable frame'
[patent_app_type] => 1
[patent_app_number] => 8/652587
[patent_app_country] => US
[patent_app_date] => 1996-07-11
[patent_effective_date] => 0000-00-00
[patent_drawing_sheets_cnt] => 1
[patent_figures_cnt] => 1
[patent_no_of_words] => 1531
[patent_no_of_claims] => 11
[patent_no_of_ind_claims] => 4
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[patent_current_assignee] =>[type] => patent
[pdf_file] => patents/05/729/05729569.pdf
[firstpage_image] =>[orig_patent_app_number] => 652587
[rel_patent_id] =>[rel_patent_doc_number] =>) 08/652587 | Submerged arc furnace with vertically movable frame | Jul 10, 1996 | Issued |
Array
(
[id] => 3981923
[patent_doc_number] => 05887018
[patent_country] => US
[patent_kind] => NA
[patent_issue_date] => 1999-03-23
[patent_title] => 'Longitudinal electromagnetic levitator'
[patent_app_type] => 1
[patent_app_number] => 8/677587
[patent_app_country] => US
[patent_app_date] => 1996-07-09
[patent_effective_date] => 0000-00-00
[patent_drawing_sheets_cnt] => 9
[patent_figures_cnt] => 11
[patent_no_of_words] => 4682
[patent_no_of_claims] => 24
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[patent_words_short_claim] => 67
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[patent_current_assignee] =>[type] => patent
[pdf_file] => patents/05/887/05887018.pdf
[firstpage_image] =>[orig_patent_app_number] => 677587
[rel_patent_id] =>[rel_patent_doc_number] =>) 08/677587 | Longitudinal electromagnetic levitator | Jul 8, 1996 | Issued |
Array
(
[id] => 3938617
[patent_doc_number] => 05946341
[patent_country] => US
[patent_kind] => NA
[patent_issue_date] => 1999-08-31
[patent_title] => 'Method pertaining to the operation of electric furnaces, and a furnace'
[patent_app_type] => 1
[patent_app_number] => 8/675929
[patent_app_country] => US
[patent_app_date] => 1996-07-05
[patent_effective_date] => 0000-00-00
[patent_drawing_sheets_cnt] => 3
[patent_figures_cnt] => 3
[patent_no_of_words] => 4325
[patent_no_of_claims] => 23
[patent_no_of_ind_claims] => 2
[patent_words_short_claim] => 154
[patent_maintenance] => 1
[patent_no_of_assignments] => 0
[patent_current_assignee] =>[type] => patent
[pdf_file] => patents/05/946/05946341.pdf
[firstpage_image] =>[orig_patent_app_number] => 675929
[rel_patent_id] =>[rel_patent_doc_number] =>) 08/675929 | Method pertaining to the operation of electric furnaces, and a furnace | Jul 4, 1996 | Issued |
Array
(
[id] => 3811618
[patent_doc_number] => 05854469
[patent_country] => US
[patent_kind] => NA
[patent_issue_date] => 1998-12-29
[patent_title] => 'Heating unit for therapeutic instrument'
[patent_app_type] => 1
[patent_app_number] => 8/673345
[patent_app_country] => US
[patent_app_date] => 1996-06-28
[patent_effective_date] => 0000-00-00
[patent_drawing_sheets_cnt] => 2
[patent_figures_cnt] => 3
[patent_no_of_words] => 1806
[patent_no_of_claims] => 7
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[patent_current_assignee] =>[type] => patent
[pdf_file] => patents/05/854/05854469.pdf
[firstpage_image] =>[orig_patent_app_number] => 673345
[rel_patent_id] =>[rel_patent_doc_number] =>) 08/673345 | Heating unit for therapeutic instrument | Jun 27, 1996 | Issued |
Array
(
[id] => 4062467
[patent_doc_number] => 05870424
[patent_country] => US
[patent_kind] => NA
[patent_issue_date] => 1999-02-09
[patent_title] => 'Graphite electrode having joints'
[patent_app_type] => 1
[patent_app_number] => 8/667797
[patent_app_country] => US
[patent_app_date] => 1996-06-20
[patent_effective_date] => 0000-00-00
[patent_drawing_sheets_cnt] => 5
[patent_figures_cnt] => 6
[patent_no_of_words] => 2160
[patent_no_of_claims] => 13
[patent_no_of_ind_claims] => 1
[patent_words_short_claim] => 134
[patent_maintenance] => 1
[patent_no_of_assignments] => 0
[patent_current_assignee] =>[type] => patent
[pdf_file] => patents/05/870/05870424.pdf
[firstpage_image] =>[orig_patent_app_number] => 667797
[rel_patent_id] =>[rel_patent_doc_number] =>) 08/667797 | Graphite electrode having joints | Jun 19, 1996 | Issued |
Array
(
[id] => 4035639
[patent_doc_number] => 05926498
[patent_country] => US
[patent_kind] => NA
[patent_issue_date] => 1999-07-20
[patent_title] => 'Melting furnace for the thermal treatment of special waste materials containing heavy metal and/or dioxin'
[patent_app_type] => 1
[patent_app_number] => 8/667816
[patent_app_country] => US
[patent_app_date] => 1996-06-20
[patent_effective_date] => 0000-00-00
[patent_drawing_sheets_cnt] => 2
[patent_figures_cnt] => 3
[patent_no_of_words] => 1965
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[pdf_file] => patents/05/926/05926498.pdf
[firstpage_image] =>[orig_patent_app_number] => 667816
[rel_patent_id] =>[rel_patent_doc_number] =>) 08/667816 | Melting furnace for the thermal treatment of special waste materials containing heavy metal and/or dioxin | Jun 19, 1996 | Issued |
Array
(
[id] => 4028488
[patent_doc_number] => 05881090
[patent_country] => US
[patent_kind] => NA
[patent_issue_date] => 1999-03-09
[patent_title] => 'Quartz used in semiconductor manufacturing device, apparatus for manufacturing the quartz, and method for manufacturing the same'
[patent_app_type] => 1
[patent_app_number] => 8/668257
[patent_app_country] => US
[patent_app_date] => 1996-06-20
[patent_effective_date] => 0000-00-00
[patent_drawing_sheets_cnt] => 3
[patent_figures_cnt] => 6
[patent_no_of_words] => 3445
[patent_no_of_claims] => 17
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[pdf_file] => patents/05/881/05881090.pdf
[firstpage_image] =>[orig_patent_app_number] => 668257
[rel_patent_id] =>[rel_patent_doc_number] =>) 08/668257 | Quartz used in semiconductor manufacturing device, apparatus for manufacturing the quartz, and method for manufacturing the same | Jun 19, 1996 | Issued |
Array
(
[id] => 3826593
[patent_doc_number] => 05812586
[patent_country] => US
[patent_kind] => NA
[patent_issue_date] => 1998-09-22
[patent_title] => 'Method and apparatus for removing a molten slag with a vacuum from a chamber'
[patent_app_type] => 1
[patent_app_number] => 8/666036
[patent_app_country] => US
[patent_app_date] => 1996-06-19
[patent_effective_date] => 0000-00-00
[patent_drawing_sheets_cnt] => 2
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[patent_current_assignee] =>[type] => patent
[pdf_file] => patents/05/812/05812586.pdf
[firstpage_image] =>[orig_patent_app_number] => 666036
[rel_patent_id] =>[rel_patent_doc_number] =>) 08/666036 | Method and apparatus for removing a molten slag with a vacuum from a chamber | Jun 18, 1996 | Issued |
Array
(
[id] => 3833361
[patent_doc_number] => 05760376
[patent_country] => US
[patent_kind] => NA
[patent_issue_date] => 1998-06-02
[patent_title] => 'Air heater with self-supporting heater element'
[patent_app_type] => 1
[patent_app_number] => 8/665915
[patent_app_country] => US
[patent_app_date] => 1996-06-19
[patent_effective_date] => 0000-00-00
[patent_drawing_sheets_cnt] => 5
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[pdf_file] => patents/05/760/05760376.pdf
[firstpage_image] =>[orig_patent_app_number] => 665915
[rel_patent_id] =>[rel_patent_doc_number] =>) 08/665915 | Air heater with self-supporting heater element | Jun 18, 1996 | Issued |
Array
(
[id] => 3765544
[patent_doc_number] => 05844212
[patent_country] => US
[patent_kind] => NA
[patent_issue_date] => 1998-12-01
[patent_title] => 'Dual surface heaters'
[patent_app_type] => 1
[patent_app_number] => 8/664917
[patent_app_country] => US
[patent_app_date] => 1996-06-18
[patent_effective_date] => 0000-00-00
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[pdf_file] => patents/05/844/05844212.pdf
[firstpage_image] =>[orig_patent_app_number] => 664917
[rel_patent_id] =>[rel_patent_doc_number] =>) 08/664917 | Dual surface heaters | Jun 17, 1996 | Issued |
Array
(
[id] => 3740387
[patent_doc_number] => 05703901
[patent_country] => US
[patent_kind] => NA
[patent_issue_date] => 1997-12-30
[patent_title] => 'Calcination furnace'
[patent_app_type] => 1
[patent_app_number] => 8/664340
[patent_app_country] => US
[patent_app_date] => 1996-06-14
[patent_effective_date] => 0000-00-00
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[patent_current_assignee] =>[type] => patent
[pdf_file] => patents/05/703/05703901.pdf
[firstpage_image] =>[orig_patent_app_number] => 664340
[rel_patent_id] =>[rel_patent_doc_number] =>) 08/664340 | Calcination furnace | Jun 13, 1996 | Issued |
Array
(
[id] => 3811669
[patent_doc_number] => 05854472
[patent_country] => US
[patent_kind] => NA
[patent_issue_date] => 1998-12-29
[patent_title] => 'Low-voltage and low flux density heating system'
[patent_app_type] => 1
[patent_app_number] => 8/659180
[patent_app_country] => US
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[pdf_file] => patents/05/854/05854472.pdf
[firstpage_image] =>[orig_patent_app_number] => 659180
[rel_patent_id] =>[rel_patent_doc_number] =>) 08/659180 | Low-voltage and low flux density heating system | Jun 5, 1996 | Issued |
Array
(
[id] => 3742771
[patent_doc_number] => 05694413
[patent_country] => US
[patent_kind] => NA
[patent_issue_date] => 1997-12-02
[patent_title] => 'Procedure and apparatus for continuous supply of heat in electrically conductive bulk goods'
[patent_app_type] => 1
[patent_app_number] => 8/676102
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[patent_app_date] => 1996-06-02
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[patent_current_assignee] =>[type] => patent
[pdf_file] => patents/05/694/05694413.pdf
[firstpage_image] =>[orig_patent_app_number] => 676102
[rel_patent_id] =>[rel_patent_doc_number] =>) 08/676102 | Procedure and apparatus for continuous supply of heat in electrically conductive bulk goods | Jun 1, 1996 | Issued |
Array
(
[id] => 4007519
[patent_doc_number] => 05892888
[patent_country] => US
[patent_kind] => NA
[patent_issue_date] => 1999-04-06
[patent_title] => 'Means for electrically heating a circulating fluid in a basin or pool'
[patent_app_type] => 1
[patent_app_number] => 8/654313
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[patent_app_date] => 1996-05-28
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[pdf_file] => patents/05/892/05892888.pdf
[firstpage_image] =>[orig_patent_app_number] => 654313
[rel_patent_id] =>[rel_patent_doc_number] =>) 08/654313 | Means for electrically heating a circulating fluid in a basin or pool | May 27, 1996 | Issued |
Array
(
[id] => 3906730
[patent_doc_number] => 05835523
[patent_country] => US
[patent_kind] => NA
[patent_issue_date] => 1998-11-10
[patent_title] => 'Bottom electrode for a metallurgical vessel'
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[pdf_file] => patents/05/835/05835523.pdf
[firstpage_image] =>[orig_patent_app_number] => 628604
[rel_patent_id] =>[rel_patent_doc_number] =>) 08/628604 | Bottom electrode for a metallurgical vessel | May 27, 1996 | Issued |
Array
(
[id] => 4079036
[patent_doc_number] => 05867523
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[patent_kind] => NA
[patent_issue_date] => 1999-02-02
[patent_title] => 'Electric furnace with conductive hearth'
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[pdf_file] => patents/05/867/05867523.pdf
[firstpage_image] =>[orig_patent_app_number] => 655168
[rel_patent_id] =>[rel_patent_doc_number] =>) 08/655168 | Electric furnace with conductive hearth | May 27, 1996 | Issued |
Array
(
[id] => 3765518
[patent_doc_number] => 05844210
[patent_country] => US
[patent_kind] => NA
[patent_issue_date] => 1998-12-01
[patent_title] => 'Ice fishing hole heater'
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[patent_app_number] => 8/652800
[patent_app_country] => US
[patent_app_date] => 1996-05-23
[patent_effective_date] => 0000-00-00
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[patent_current_assignee] =>[type] => patent
[pdf_file] => patents/05/844/05844210.pdf
[firstpage_image] =>[orig_patent_app_number] => 652800
[rel_patent_id] =>[rel_patent_doc_number] =>) 08/652800 | Ice fishing hole heater | May 22, 1996 | Issued |