Ryszard Kobylecki has been granted 10 US patents while listed as an inventor at Pfizer. The first was granted in 1980 and the most recent in January 2013. Ryszard Kobylecki ranks #481,000 of 4,157,543 US inventors in our database (top 11.6%). Patent records list Ryszard Kobylecki in Patrington, IL, GB.