Individual holder
RISTOW DELANO H
US·4 granted patents·68 citations·filing 1983–1989
Individually held — no corporate assignee on record.
Top patents by PatentIndex Score
4 records- 0166US4519172AWaterproof roofRISTOW DELANO H·Filed 1983·Granted May 28, 1985·36 cites·18 claims
- 0243US4996801ATermination bar and splice for rubberized roofing sheetsRISTOW DELANO H·Filed 1989·Granted Mar 5, 1991·20 cites·7 claims
- 0335US5094043AWaterproof roofRISTOW DELANO H·Filed 1988·Granted Mar 10, 1992·10 cites·8 claims
- 0423US4977659ATool for seating tubing in a concealed roofing base railRISTOW DELANO H·Filed 1989·Granted Dec 18, 1990·2 cites·15 claims
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