U.S. Circuit Court for the District of Massachusetts August 8, 1911, No. 527 (Combustion Utilities Corp. v. Worcester Gaslight Co.)

lead-opinion

BROWN, District Judge.

The bill charges infringement of two letters patent to Henry L. Doherty; No. 829,105, August 21, 1906, for “process of regulating the temperature of comliustion in gas producers,” claims 7, 10, and 13; and No. 844,504, February 19, 1907, for “apparatus for regulating combustion in-furnaces,” claim 3.