Stuart B. Spence — 1 Patent at Otis Elevator

Stuart B. Spence has been granted 1 US patent while listed as an inventor at Otis Elevator. All of these patents were granted in 1988. Stuart B. Spence ranks #2,406,284 of 4,157,543 US inventors in our database (top 57.9%). Patent records list Stuart B. Spence in Simsbury, CT, US.

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #	Title	Co-Inventors	Date	Approx Value ⓘ
4793441	Elevator car system with three guide rails	Janis J. Cilderman	1988-12-27	$4,318,000

Stuart B. Spence — 1 Patent

Issued Patents All Time

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