Inventor · disambiguated record
Derek J. Barr
Also filed as: BARR DEREK J · BARR DEREK JULIAN
3 granted patents·48 citations·filing 1976–1993
71Inventor score
Technology areasF26B
Files withBARR & MURPHY LTD2
Top patents by PatentIndex Score
3 records- 0173US5474686ASludge treating process and apparatusFiled 1993·Granted Dec 12, 1995·29 cites·5 claims
- 0243US4144654ADrying apparatusBARR & MURPHY LTD·Filed 1977·Granted Mar 20, 1979·10 cites·8 claims
- 0339US4101264ADrying apparatus and methodBARR & MURPHY LTD·Filed 1976·Granted Jul 18, 1978·9 cites·7 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →