Inventor · disambiguated record
David E. Hallberg
Also filed as: HALLBERG DAVID E
3 granted patents·220 citations·filing 1991–2004
78Inventor score
Top patents by PatentIndex Score
3 records- 0191US5070016AIntegrated process for producing ethanol, methanol and butyl ethersREVOLUTION FUELS OF AMERICA IN·Filed 1991·Granted Dec 3, 1991·114 cites·16 claims
- 0289US6355456B1Process of using wet grain residue from ethanol production to feed livestock for methane productionDAKOTA AG ENERGY INC·Filed 2000·Granted Mar 12, 2002·79 cites·2 claims
- 0375US7381550B2Integrated process for producing “clean beef” (or milk), ethanol, cattle feed and bio-gas/bio-fertilizerPRIME BIOSHIELD LLC·Filed 2004·Granted Jun 3, 2008·27 cites·10 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →