From the PUBPAT website:

Columbia Axel - multiple patenting by Columbia Axel to extend patent life from 2000 to 2019.  Columbia Axel has chosen not to assert the patent.

Microsoft - validity of FAT patent.  USPTO originally rejected the patent but it was reinstated after Microsoft provided further evidence supporting the patentability.

Pfizer - validity of Lipitor patent.  Pfizer narrowed their claims to exclude a form of the drug tested in early clinical trials.

Forgent - validity of JPEG patent.  See my previous post.

WARF - validity of stem cell patents.  Still under review by USPTO.  WARF has eased restrictions.  PUBPAT's position is that the inventor did not invent human embryonic stem cells.

EpicRealm - validity of website patents.  Still under review by USPTO.  This is the first company that PUBPAT infers as being "patent trolls."

Monsanto - validity of "anti-farmer" patents.  Still under review by the USPTO.  This is their current David vs Goliath battle intended to defend the farmers who Monsanto has been bullying. 

Patriot Scientific - validity of 336 patent.  This is the second attempt by PUBPAT to address what they call a "corporate front for contingency fee patent attorneys to sue and threaten productive members of society."