Thomas A. Sperakis — 2 Patents at Handy & Harman

Thomas A. Sperakis has been granted 2 US patents while listed as an inventor at Handy & Harman. The first was granted in 1986 and the most recent in August 1987. Thomas A. Sperakis ranks #1,709,992 of 4,157,543 US inventors in our database (top 41.1%). Patent records list Thomas A. Sperakis in Jamestown, NY, US.

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #	Title	Co-Inventors	Date	Approx Value ⓘ
4684052	Method of brazing carbide using copper-zinc-manganese-nickel alloys	Allen S. McDonald, Charles W. Philp	1987-08-04	$2,543,000
4631171	Copper-zinc-manganese-nickel alloys	Allen S. McDonald, Charles W. Philp	1986-12-23	$2,000,000

Thomas A. Sperakis — 2 Patents

Issued Patents All Time

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