Inventor · disambiguated record
Karl O. Toppel
Also filed as: TOPPEL KARL O
5 granted patents·95 citations·filing 1991–1998
81Inventor score
Files withBOC GROUP INC5
Top patents by PatentIndex Score
5 records- 0169US5617742ADistillation apparatusBOC GROUP INC·Filed 1996·Granted Apr 8, 1997·30 cites·6 claims
- 0264US5906674AProcess and apparatus for separating gas mixturesBOC GROUP INC·Filed 1997·Granted May 25, 1999·36 cites·24 claims
- 0352US5983666AAir separation plant and method of fabricationBOC GROUP INC·Filed 1997·Granted Nov 16, 1999·15 cites·11 claims
- 0444US5160355AAdsorbent vessel having a convective heat exchanger and flow developerBOC GROUP INC·Filed 1991·Granted Nov 3, 1992·11 cites·16 claims
- 0530US5987918AMethod of separating nitrogen from airBOC GROUP INC·Filed 1998·Granted Nov 23, 1999·3 cites·6 claims
Join the waitlist — get patent alerts
Get an alert when Karl O. Toppel 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 →