Inventor · disambiguated record
Roy E. Johnson
Also filed as: JOHNSON ROY E
6 granted patents·139 citations·filing 1977–1991
84Inventor score
Files withJOHNSON ROY E6
Top patents by PatentIndex Score
6 records- 0189US4934715AGasket for use with manhole coversJOHNSON ROY E·Filed 1989·Granted Jun 19, 1990·58 cites·6 claims
- 0275US5090713AElastomeric gasket for sealing a glass fiber reinforced cover to a vaultJOHNSON ROY E·Filed 1990·Granted Feb 25, 1992·43 cites·3 claims
- 0362US4117991AHose winding mechanismJOHNSON ROY E·Filed 1977·Granted Oct 3, 1978·13 cites·7 claims
- 0440US5230583AMethod of sealing openings in manhole covers using a pick hole plugJOHNSON ROY E·Filed 1991·Granted Jul 27, 1993·12 cites·1 claims
- 0540US4712800ASplit elastomer ring for repairing potheads and process of repairing a pothead therewithJOHNSON ROY E·Filed 1986·Granted Dec 15, 1987·9 cites·9 claims
- 0630US5038487AAttachment for framer's squareJOHNSON ROY E·Filed 1991·Granted Aug 13, 1991·4 cites·8 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →