Inventor · disambiguated record

Steven A. Spigarelli

Also filed as: SPIGARELLI STEVEN A

1 granted patent·21 citations·filing 1991–1991

40Inventor score

Technology areasB01J

Files withBEMIDJI STATE UNIVERSITY FOUND1

Top patents by PatentIndex Score

1 record

0148US5314638AIon exchange materials produced from hydrolyzed, debituminized, sulfonated peatBEMIDJI STATE UNIVERSITY FOUND·Filed 1991·Granted May 24, 1994·21 cites·5 claims

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