Peter Shaffer screenplay for "Equus", he was nominated for the 1977 Best Adapted Screenplay Oscar but the award went to Alvin Sargent, who wrote the screenplay for "Julia". For writing the screenplay for "Amadeus", Shaffer received both the 1984 Best Screenplay Golden Globe and the 1984 Best Adapted Screenplay Oscar. Shaffer was homosexual but did not write explicitly about it. His boyfriend Robert Leonard died in 1990. Shaffer died on June 6, 2016, at the age of ninety while on a trip to the south-west of Ireland. He co-wrote three detective novels with his brother Anthony Shaffer under the pseudonym "Peter Antony".
Shaffer (company) Shaffer (company) Shaffer is a wholly owned subsidiary of National Oilwell Varco and is involved in the manufacturing and distribution of pressure control devices for the petroleum industry. The company's products include blowout preventers, control systems, riser string packages, choke valves, riser tensioners, and drill string compensators. The company was founded by William D. Shaffer in 1928 as Shaffer Tool Works. In 1968, it was sold to the Rucker Corporation, which became known as Rucker Shaffer. It was again sold in 1978 to NL industries, which became known as NL Shaffer. In 1979, NL Shaffer purchased Koomey Control Systems in