Duplate Corp. v. Triplex Safety Glass Co.

The subject of this controversy is the measure of petitioners’ liability for damages and profits under a decree for an accounting by infringers of a patent.

Respondent, complainant below, is the owner of a patent, number 1,182,739, .for the making of laminated glass, which will crack, but not shatter. The product is better known as “safety” or “shatter-proof” glass, and is used very largely in the making of automobiles. In the process of manufacture, a sheet of pyralin or celluloid is sandwiched between two thin sheets of plate glass, each % of an inch thick, the pyralin being cemented to the…