Inventor record

CHEPURNOI NIKOLAI P

This page previously combined 2different people who filed under the same name. Pick the inventor you're looking for — each profile now covers one disambiguated person.

• 85Nikolai P. Chepurnoi9 patent records·84 citations·E21B Y10T7 on this record
• 97Alexandr D. Kostylev33 patent records·439 citations·E21B B25D E02D1 on this record

Inventor identities via PatentsView disambiguation — see methodology.