Blog

Federal Circuit affirms Board decision invalidating Pfizer vaccine patents because claimed molecular weight was a result effective variable derivable by routine optimization.

March 25, 2024

Undue experimentation not required to synthesize novel prodrug.

April 17, 2022

PTAB rejects Examiner’s argument that crystalline form of an old compound would have been obvious based on obvious to try rationale.

December 05, 2021

505(b)(2) application skirts PTE to introduce metabolite of Biogen’s Tecfidera®.

August 25, 2020

PTAB reverses obviousness rejection based on unpredictable results from site of deuteration

November 04, 2019

FDA clarifies requirements to be listed as the active ingredient in a drug product.

January 06, 2019

American patent rules seem to foreclose additional patent protection for new stereoisomers, while European patent rules offer some margin of hope.

June 24, 2018

Rejection of methyl homolog as prima facie obvious over old compound reversed under lead compound analysis.

February 27, 2018

Japanese patent laws allow applicants to extend patent protection an additional 18 months by following a simple filing sequence. 

February 05, 2018

Trial court applied wrong legal framework to claimed new compound formed during lyophilization.

August 08, 2017