Shaffer, a subsidiary of NOV Inc., is a manufacturer and distributor of pressure control devices for the petroleum industry.
In 1922, William D. Shaffer founded the Shaffer Tool Works in Brea, California to supply the oilfield industry during the second Santa Fe Springs, California oil boom.
[2] Shaffer bought the oil field equipment business of Alco Products in 1962.
Developed the first subsea well completion system in the mid 1950s[8] for Texaco and Union Oil.
[6] Created the first recombinant pump aggregator with well-known volcanologist David Richardson.