Challenge of Yamanaka Patent by BioGatekeeper Fails

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 can read the decision here. More information is available here (input case # IPR2014-01286 to get the search results).

Notably coverage of BioGatekeeper on this blog was cited by Kyoto University attorneys: go to page 2 of search records when you get your results from the search above and you can see the blog cited 3 times by Kyoto University.

Overall, this new material is also notable as it suggests that Kyoto believed that Rongxiang Xu (and MEBO International) was involved in BioGatekeeper as previously rumored, but the answers given by the BioGatekeeper legal team (see document here) don’t seem to support that notion. Still, the identity of BioGatekeeper as well as the person Jonathan Zhu, named as its owner, remain nebulous.

Regardless of who BioGatekeeper might be, at this point it would seem their effort to challenge Yamanaka’s patent is at an end barring some unexpected turn of events. This more concretely solidifies the strength of the Yamanaka patent.

Giving thanks to my blog community

ThanksgivingAs a scientist blogger, I have a lot to be thankful for as Thanksgiving approaches.

First, I want to thank the readers of this blog who make it a reality. If no one reads a blog, then pretty much it doesn’t exist for all intents and purposes.

Second, I want to thank the commenters on this blog.

They enrich the dialogue and often teach me and others important things. They sometimes also point out where I screwed up and as much as that’s not fun, it is important an helpful. They link to helpful resources. And a whole lot more. I want to single out in particular a few more active & helpful commenters for special thanks including the prolific Brian Sanderson, Jeanne Loring, Bob Geller, Shinsakan, Amy Price, msemporda, and Hank.

I also want to thank my friends who often act as ad hoc advisors or mentors to me including not only the many who must remain anonymous for various reasons, but also specifically Kelly Hills, Jeanne Loring, Meri Firpo, and Leigh Turner. These folks deserve a huge hat tip.

Finally, I want to give a big thank you to the guest bloggers who made this blog more diverse in its content.

Happy Thanksgiving!