Inventor
George Havas
Inventor
Youngstown, OH, US
Overview
Patents· 12 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
H05Bprimary
H05BElectric heating31%
C21DModifying the physical structure of ferrous metals10%
F27BFurnaces, kilns, ovens or retorts in general10%
H02MApparatus for conversion between ac and ac, between ac and dc, or between dc and dc, and for use with mains or similar power supply systems10%
Y02PClimate change mitigation technologies in the production or processing of goods10%
C23CCoating metallic material7%
F27DDetails or accessories of furnaces, kilns, ovens or retorts, in so far as they are of kinds occurring in more than one kind of furnace7%
G05FSystems for regulating electric or magnetic variables7%
B21BRolling of metal3%
Y10TTechnical subjects covered by former us classification3%
PatentTitleYear
6,439,883'Threading and scale removal device'20025,666,377'Multiple furnace controller'19975,418,706'Wide load matching capability power supply'19955,403,994'Selectively adjustable transverse flux heating apparatus'19955,280,495'Furnace refractory extraction system and method'19945,034,586'Induction heating assembly including an interposed closed conductive loop for suppression of intercoil coupling'19914,895,736'Method for alloying of coatings'19904,811,356'Control circuit for switching power to an induction furnace'19894,807,559'Apparatus for alloying of coatings'19894,280,038'Method and apparatus for inducting heating and melting furnaces to obtain constant power'19814,139,723'Power control unit for a single phase load with slightly changing impedances'19794,037,044'Power control system for single phase induction melting or heating furnace'1977Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1977–2002Patents assigned to AJAX MAGNETHERMIC CORP (12)· patent assignee history
1977–2002Based in Youngstown, OH, US· patent location history
1989–1990Patents assigned to NAT STEEL CORP (2)· patent assignee history
1991Based in Liberty Township, OH, US· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| AJAX MAGNETHERMIC CORP | 12 | 1977–2002 |
| NAT STEEL CORP | 2 | 1989–1990 |
Locations
| Location | Patents | Span |
|---|---|---|
| Youngstown, OH, US | 11 | 1977–2002 |
| Liberty Township, OH, US | 1 | 1991 |