YWHC, INC. Trademarks
ALDRAIN

ALDRAIN

Filed: January 22, 1979
AUTOMATIC CONTROL VALVE FOR STEAM SYSTEMS
Owned by: YWHC, INC.
Serial Number: 73200775

ULTRA-TECH

ULTRA-TECH

Filed: June 18, 1982
Automatically-Controlled Ball Valves
Owned by: YWHC, INC.
Serial Number: 73370404

FIBERPORT

FIBERPORT

Filed: January 13, 1983
a Viewing System for Water-Level Gages-Namely, a Master Cable Made of Individual Optic Fiber Strands, Illuminator, Gage,…
Owned by: YWHC, INC.
Serial Number: 73409311

DURAHEAT

DURAHEAT

Filed: March 2, 1987
HEAT TRANSFER ADHESIVE STRIPS AND COMPOUNDS FOR USE WITH STEAM OR ELECTRIC TRACING ON PIPELINES AND HEAT DEPENDENT PROCESSING…
Owned by: YWHC, INC.
Serial Number: 73647257