SUIT OVER SPARK PLUGS

The New York Times
September 16, 1909

One Patent Holder Begins an Action, Alleging Infringement.

A suit was filed in the United States Circuit Court yesterday which may have an important effect on a good many makers and users of automobiles. Joseph H. Lehman of the Lehman Manufacturing Company, makers of jump spark ignition plugs, instituted an action seeking to restrain the A.R. Mosler Company of this city from manufacturing spark plugs on the ground of a prior patent.

There are about 125 varieties of spark plugs in the market, and if Mr. Lehman wins his suit some twelve or fifteen manufacturers and several hundred jobbing houses will be liable for incidental damages. In addition, provided the Lehman patent is sustained, the owners of all automobiles and gas engines in which the spark plugs alleged to be covered by it are installed will be brought within the scope of the litigation.