Inventor · disambiguated record
Donald R. Mccallum
Also filed as: MCCALLUM DONALD · MCCALLUM DONALD R
3 granted patents·1 pending application·122 citations·filing 1993–2010
74Inventor score
Top patents by PatentIndex Score
4 records- 0190US6393769B1Portable stageMARSHALL AUSTIN PRODUCTIONS·Filed 2000·Granted May 28, 2002·101 cites·26 claims
- 0252USD672054SMobile stageMERTIK ROY M·Filed 2010·Granted Dec 4, 2012·11 cites·1 claims
- 0338US2010218927A1Heat exchange surfaceCOOPER JIM·Filed 2006·Application pending·0 cites
- 0432US5443113AHeat exchangersHOWDEN GROUP PLC·Filed 1993·Granted Aug 22, 1995·10 cites·9 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →