KABUSHIKI KAISHA GEMVAC

Patent Owner

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
H01H ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES 193

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
RE31797 Arc-shield supporting structure of a vacuum power interrupterMay 17, 82Jan 08, 85[H01H]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
4434331 Vacuum power interrupting deviceExpiredJan 30, 81Feb 28, 84[H01N]
4429197 Vacuum power interrupting deviceExpiredDec 12, 80Jan 31, 84[H01H]
4365127 Vacuum power interrupterExpiredNov 20, 80Dec 21, 82[H01N]
4361742 Vacuum power interrupterExpiredJul 17, 80Nov 30, 82[H01H]
4293748 Vacuum circuit interrupter electrodesExpiredDec 19, 78Oct 06, 81[H01H]

Top Inventors for This Owner

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