Inventor · disambiguated record

Duncan A. Campbell

Also filed as: CAMPBELL DUNCAN A · CAMPBELL DUNCAN ALISTAIR

2 granted patents·17 citations·filing 1994–1999

58Inventor score

Technology areasB01D C01B

Files withCARLTON & UNITED BREWERIES1 EA TECH LTD1

Top patents by PatentIndex Score

2 records

0136US6589430B1Controlling the supply of bodyfeed to a filterCARLTON & UNITED BREWERIES·Filed 1999·Granted Jul 8, 2003·11 cites·16 claims
0229US5670036AMethod for converting ammonia in a gas stream to nitrogenEA TECH LTD·Filed 1994·Granted Sep 23, 1997·6 cites·10 claims

Join the waitlist — get patent alerts

Get an alert when Duncan A. Campbell 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 →