September 27, 2020

The Niche

Knoepfler lab stem cell blog

Jonathan Zhu

2 min read

The still mysterious BioGatekeeper had challenged Yamanaka’s IPS cell patent claiming that it was obvious. The potential implications were huge given the commercial interest in translating IPS cell technology. For background see here, here, and here. There’s pretty much zero information on BioGatekeeper otherwise. Despite the potential seriousness of this patent challenge, just a few days ago the Patent Trial and Appeal Board (PTAB) denied the challenge so for all intents and purposes BioGatekeeper’s effort is dead. A big hat tip to reader Shinsakan. You …Read More

4 min read

Who is trying, via the name BioGatekeeper, Inc., to nullify Yamanaka’s patent on cellular reprogramming to produce induced pluripotent stem (iPS) cells? The readers of this blog never cease to amaze me. What an informed, energetic, bright group. Within just days they may have collectively shed some light on an intriguing mystery in the stem cell field surrounding the question that started this post. This past week the mysterious organization BioGatekeeper, Inc. filed a challenge to the Yamanaka Patent. The basis of the challenge is the assertion that cellular reprogramming was …Read More