He has watched gleefully while Respironics stumbled trying to fix the botched acquisition of rival respiratory-device maker Healthdyne last year.

FORBES: No Rest for the Weary

Since 1995 Farrell has sued Respironics for infringing four patents, but he lost three of the claims on summary judgment in the U.S. District Court in Pittsburgh, crosstown from Respironics headquarters.

FORBES: No Rest for the Weary

But ResMed is knocking the wind out of Respironics.

FORBES: No Rest for the Weary