Inventor · disambiguated record
Walton W. Welna
Also filed as: FRANK LOWELL C · WELNA WALTON W
5 granted patents·213 citations·filing 1978–1999
84Inventor score
Top patents by PatentIndex Score
5 records- 0187US6747074B1Intumescent fire sealing composition3M INNOVATIVE PROPERTIES CO·Filed 1999·Granted Jun 8, 2004·83 cites·1 claims
- 0287US4952615ACompressible fireproof sealMINNESOTA MINING & MFG·Filed 1988·Granted Aug 28, 1990·57 cites·14 claims
- 0371US5476891AIntumescent composition exhibiting improved long-term expansion and compression properties and method of useMINNESOTA MINING & MFG·Filed 1994·Granted Dec 19, 1995·28 cites·19 claims
- 0467US5578671AIntumescent puttyMINNESOTA MINING & MFG·Filed 1995·Granted Nov 26, 1996·28 cites·30 claims
- 0566US4177078AThermal stabilization of soilMINNESOTA MINING & MFG·Filed 1978·Granted Dec 4, 1979·17 cites·3 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →