Hercules Inc. v. National Patent Development Corp.

BALDWIN, Judge.

This appeal is from the decision of the Trademark Trial and Appeal Board,1 sustaining the opposition by National Patent Development Corporation (NPDC) to an application2 by Hercules Incorporated (Hercules) to register HYDROLYN for “synthetic resin.” Appellee NPDC asserts that appellant’s mark so resembles appellee’s mark HYDRON for hydrophilic gel, synthetic resins- — namely, hydrophilic gels of modified acrylic polymeric plastics for preparing shaped articles,3 and for underwater paints and coatings for water vehicles,4 as to be likely to cause confusion, mistake, or…