May 11 (Reuters) - Avita Medical Ltd AVH.AX :
* Avita initiates legal process to cancel Renovacare patent
* Filed an Inter Partes Review (IPR) petition against U.S. patent owned by Renovacare Sciences Corp
* "Avita holds that all claims in the '430 patent are unpatentable and should be cancelled" Source text for Eikon: Further company coverage: AVH.AX