U.S. Patent No. 5,474,142

2 opinions in this collection construe or address U.S. Patent No. 5,474,142. View the patent on Google Patents.

• January 25, 2017 Fed. Cir. National Oilwell Varco, L.P. v. Omron Oilfield & Marine, Inc., No. 15-1406 (Fed. Cir. Jan. 25, 2017) Affirmed in Part
• August 16, 2011 E.D. Tex. National Oilwell Varco, L.P. v Auto-Dril, Inc., No. 5:09-cv-00085 (E.D. Tex. Aug. 16, 2011) Claims Construed