Inventor · disambiguated record
John O. Ratka
Also filed as: RATKA JOHN O
4 granted patents·31 citations·filing 1992–1997
73Inventor score
Top patents by PatentIndex Score
4 records- 0168US5217158AProcess for thermodynamically treating a region joining two membersBRUSH WELLMAN·Filed 1992·Granted Jun 8, 1993·16 cites·10 claims
- 0240US5324914AMethod and apparatus for welding precipitation hardenable materialsUNIV PRINCETON·Filed 1992·Granted Jun 28, 1994·9 cites·21 claims
- 0327US5911948AMachinable lean beryllium-nickel alloys containing copper for golf clubs and the likeBRUSH WELLMAN·Filed 1997·Granted Jun 15, 1999·5 cites·9 claims
- 0426US5257733AProcess for thermodynamically treating a region joining two members and product thereofBRUSH WELLMAN·Filed 1993·Granted Nov 2, 1993·1 cites·1 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →