Inventor

JOHN PAUL C

US3 patents

Patents

3 patents

US6479276B1Nov 12, 2002

Biological filter apparatus

BIO REACTION IND LLC21 citations88

US6524849B1Feb 25, 2003

Biological filter structures

BIO REACTION IND LLC47 citations84

US6551818B2Apr 22, 2003

Biological filter structures

BIO REACTION IND LLC3 citations58