Inventor · disambiguated record
Keith M. Grahl
Also filed as: GRAHL KEITH M
3 granted patents·84 citations·filing 1991–1995
74Inventor score
Files withRHEEM MFG CO3
Top patents by PatentIndex Score
3 records- 0177US5370529ALow NOx combustion system for fuel-fired heating appliancesRHEEM MFG CO·Filed 1993·Granted Dec 6, 1994·43 cites·19 claims
- 0261US5649529ALow NOx combustion system for fuel-fired heating appliancesRHEEM MFG CO·Filed 1995·Granted Jul 22, 1997·25 cites·12 claims
- 0347US5146910ANOX reducing device for fuel-fired heating appliancesRHEEM MFG CO·Filed 1991·Granted Sep 15, 1992·16 cites·9 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →