www.fdanews.com/articles/144633-j-amp-j-unit-in-hot-seat-over-pfizer-thermacare-ip

J&J Unit in Hot Seat Over Pfizer ThermaCare IP

March 7, 2012

Pfizer lobbed a patent infringement lawsuit against a Johnson & Johnson unit in Delaware federal court, claiming its Tylenol-branded heat patches use heat cells that violate Pfizer’s patent technology.
Law360