Inventor · disambiguated record

Harold M. Ray

Also filed as: RAY HAROLD M

2 granted patents·73 citations·filing 1990–1991

66Inventor score

Technology areasB03D

Files withDOE RUN CO2

Top patents by PatentIndex Score

2 records

0178US5074994ASequential and selective flotation of sulfide oresDOE RUN CO·Filed 1990·Granted Dec 24, 1991·48 cites·26 claims
0259US5078860ASequential and selective flotation of sulfide ores containing copper and molybdenumDOE RUN CO·Filed 1991·Granted Jan 7, 1992·25 cites·12 claims

Join the waitlist — get patent alerts

Get an alert when Harold M. Ray files or is granted a new patent.

We store only your email — no account needed. See our privacy policy.

Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →