Inventor · disambiguated record

John Stipanovich, Jr.

Also filed as: STIPANOVICH JR JOHN

2 granted patents·18 citations·filing 1992–1992

57Inventor score

Technology areasC10C

Files withARISTECH CHEMICAL CORP2

Top patents by PatentIndex Score

2 records

0158US5326457AProcess for making carbon electrode impregnating pitch from coal tarARISTECH CHEMICAL CORP·Filed 1992·Granted Jul 5, 1994·16 cites·13 claims
0223US5314609AProcess for preparing debenzolized tar and low-benzene centrifuged tar sludgeARISTECH CHEMICAL CORP·Filed 1992·Granted May 24, 1994·2 cites·6 claims

Join the waitlist — get patent alerts

Get an alert when John Stipanovich, Jr. files or is granted a new patent.

We store only your email — no account needed. See our privacy policy.

Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →