Published May 12, 2014 at 540 × 467 in IP Fridays – Episode 2 – Interview with John L. Welch of the TTABlog, USPTO Trademark Fees, US Supreme Court on Patents John L. Welch with Rolf Claessen John L. Welch of the TTABlog with Rolf Claessen John L. Welch of the TTABlog with Rolf Claessen