Inventor · disambiguated record
Donald F. Graveman
Also filed as: GRAVEMAN DONALD F
7 granted patents·214 citations·filing 1974–1996
87Inventor score
Technology areasB02C
Top patents by PatentIndex Score
7 records- 0192US4009836AMaterial reducing machineAMERICAN PULVERIZER·Filed 1975·Granted Mar 1, 1977·54 cites·7 claims
- 0291US5628467AHammermill with intersticed multilength hammersMAGNATECH ENGINEERING INC·Filed 1994·Granted May 13, 1997·63 cites·18 claims
- 0386US5562257ADouble rotor hammermillMAGNATECH ENGINEERING INC·Filed 1996·Granted Oct 8, 1996·44 cites·11 claims
- 0468US3934826ACoal crusherAMERICAN PULVERIZER·Filed 1974·Granted Jan 27, 1976·21 cites·7 claims
- 0557US4205795AMaterial handling facilityAMERICAN PULVERIZER·Filed 1978·Granted Jun 3, 1980·13 cites·18 claims
- 0649US4720051AHammer-type shredder with air deflectorAMERICAN PULVERIZER·Filed 1985·Granted Jan 19, 1988·11 cites·22 claims
- 0744US4149677AReinforced ring hammerAMERICAN PULVERIZER·Filed 1977·Granted Apr 17, 1979·8 cites·18 claims
Join the waitlist — get patent alerts
Get an alert when Donald F. Graveman 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 →