ED

Emil Drubetsky

TF The Fredericks: 3 patents #1 of 14Top 8%
Overall (All Time): #1,623,516 of 4,157,543Top 40%
3
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
6257069 Bayard-alpert vacuum gauge with neutralization of x-ray effect Howard M. Brady, Ronald H. Goehner, Jr., Bruce Kendall 2001-07-10
5568053 Ionization gauge having a non-time varying magnetic field generator of separated opposed magnets Donald R. Taylor 1996-10-22
5351551 Convection thermocouple vacuum gauge Donald R. Taylor, Leonard Woshczyn 1994-10-04