See: http://www.ipscell.com/2016/01/patent-expert-weighs-in-on-crispr-dispute-between-uc-broad/ http://www.ipscell.com/2016/01/patent-expert-weighs-in-on-cr...

See: http://www.ipscell.com/2016/01/patent-expert-weighs-in-on-crispr-dispute-between-uc-broad/ http://www.ipscell.com/2016/01/patent-expert-weighs-in-on-cr... and https://law.stanford.edu/2015/12/29/the-crispr-patent-interference-showdown-is-on-how-did-we-get-here-and-what-comes-next/ https://law.stanford.edu/2015/12/29/the-crispr-patent-interf... They're mostly specific to Cas9.