October 24, 2022
The Patent Trial and Appeal Board has invalidated claims in three Converter Manufacturing LLC food wrapping patents, rejecting its argument that Tekni-Plex Inc.'s challenges should have failed because the prior art it relied on to kill the patents was inoperable.
July 28, 2022
A Patent Trial and Appeal Board panel wrestled Thursday with what standard to apply in determining whether prior art Tekni-Plex Inc. relied on in challenges to three Converter Manufacturing LLC food wrapping patents is enabled and can be used to invalidate the patents.