Inventor · disambiguated record
Douglas M. Wallace
Also filed as: WALLACE DOUGLAS M
12 granted patents·285 citations·filing 1999–2002
93Inventor score
Files withEVAC INT OY12
Top patents by PatentIndex Score
12 records- 0195US6353942B1Modular vacuum toilet with line replaceable unitsEVAC INT OY·Filed 2000·Granted Mar 12, 2002·75 cites·26 claims
- 0288US6349424B1Rinse fluid valve for a vacuum toiletEVAC INT OY·Filed 2000·Granted Feb 26, 2002·26 cites·18 claims
- 0387US6370709B1Discharge valve having a disk with a flushing aperture and an air intake aperture for a vacuum toiletEVAC INT OY·Filed 2000·Granted Apr 16, 2002·31 cites·27 claims
- 0482US6704947B2Discharge valve for a vacuum toiletEVAC INT OY·Filed 2002·Granted Mar 16, 2004·23 cites·13 claims
- 0582US6536054B2Vacuum toilet bowl assembly having removable bowlEVAC INT OY·Filed 2002·Granted Mar 25, 2003·19 cites·17 claims
- 0682US6536055B2Modular vacuum toilet with line replaceable unitsEVAC INT OY·Filed 2002·Granted Mar 25, 2003·23 cites·28 claims
- 0768US6732386B2Rinse fluid valve for a vacuum toiletEVAC INT OY·Filed 2002·Granted May 11, 2004·19 cites·20 claims
- 0866US6349425B1Valve set for a vacuum toiletEVAC INT OY·Filed 2000·Granted Feb 26, 2002·21 cites·16 claims
- 0963US6347416B1Vacuum toilet bowl assembly having a removable bowlEVAC INT OY·Filed 2000·Granted Feb 19, 2002·15 cites·13 claims
- 1055US6467497B1Buffer box for use in a vacuum drainage systemEVAC INT OY·Filed 1999·Granted Oct 22, 2002·16 cites·28 claims
- 1145US6283140B1Waste fluid discharge columnEVAC INT OY·Filed 2000·Granted Sep 4, 2001·6 cites·23 claims
- 1237US6305403B1Aeration apparatus for a vertical riser in a vacuum drainage systemEVAC INT OY·Filed 1999·Granted Oct 23, 2001·11 cites·13 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →