SE

Sergey F. Ermakov

DP Development Products: 2 patents #1 of 18Top 6%
Overall (All Time): #2,285,409 of 4,157,543Top 55%
2
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
5399730 Method of obtaining an purified wool fat and use as an additive to lubricants Boris I. Koupchinov, Viktor P. Parkalov, Vladimir G. Rodnenkov, Vitaly G. Tischenco, Lenoid A. Sarkisov +3 more 1995-03-21
5238929 Correction of tribology of arthritis-affected joints and medicine for its implementation Boris I. Koupchinov, E. D. Belojenko, Vladimir G. Rodnenkov, Vladimir N. Kestelman 1993-08-24