IE

Ivan F. Evkin

Overall (All Time): #2,373,269 of 4,157,543Top 60%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
4199398 Rotary film apparatus Viktor M. Olevsky, Vitaly R. Ruchinsky, Valentin A. Tatyanchikov, Jury N. Nikolaev 1980-04-22
4198361 Film-type rotary mass-and-heat exchange column Alexandr V. Shafranovsky, Vitaly R. Ruchinsky, Viktor M. Olevsky, Vladimir P. Gavrilin, Vladimir K. Chubukov +5 more 1980-04-15