Inventor · disambiguated record
William H. Tough
Also filed as: TOUGH WILLIAM H
3 granted patents·8 citations·filing 1986–1989
59Inventor score
Files withSCOTT & FYFE LTD3
Top patents by PatentIndex Score
3 records- 0128US4727731AComposite sheet materialSCOTT & FYFE LTD·Filed 1986·Granted Mar 1, 1988·7 cites·24 claims
- 0221US4976118AMethod for producing backing material for carpet underlaySCOTT & FYFE LTD·Filed 1988·Granted Dec 11, 1990·1 cites·6 claims
- 0321US4959253ABacking material for carpet underlaySCOTT & FYFE LTD·Filed 1989·Granted Sep 25, 1990·0 cites·7 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →