Red River Refining Co. v. Sun Oil Co.

KIRKPATRICK, District Judge.

These two suits are for infringement of three patents, all having to do with the production of lubricating oils from petroleum by distillation. They are Nos. 1,448,-709 to Schultze, 2,017,820 to Schultze, and 1,727,380 to Ryder. For convenience they will be discussed as though there was one suit and one plaintiff.

Of the claims in suit 27, 28, 32, 33, 34, 35, 36, 38, 40, 42, 43, 45, 46, 47, 48, and 49 of the ’709 patent, 19, 20, 22, 23, and 25 of the ’820 patent, and 13, 14, 15, 16, and 17 of the ’380 patent are process claims. 13, 14, 15, 16, and 25 of the ’709…