Roy A. Langdon — 2 Patents at Beloit

Roy A. Langdon has been granted 2 US patents while listed as an inventor at Beloit. The first was granted in 1981 and the most recent in April 1984. Roy A. Langdon ranks #1,709,992 of 4,157,543 US inventors in our database (top 41.1%). Patent records list Roy A. Langdon in Beloit, WI, US.

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #	Title	Co-Inventors	Date	Approx Value ⓘ
4444364	Self-aligning core chuck	Carl B. Dahl	1984-04-24	$499,000
4300714	Method and apparatus for silencing of webs	Carl B. Dahl, Jere W. Crouse	1981-11-17	$1,589,000

Roy A. Langdon — 2 Patents

Issued Patents All Time

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