Inventor · disambiguated record
David Walker
Also filed as: WALKER DAVID · WALKER DAVID T · WALKER JR DAVID TODD
12 granted patents·129 citations·filing 1997–2022
91Inventor score
Files withUNIVERSAL SEPARATORS INC6WALKER JR DAVID TODD2LIFF HOLDINGS LTD1TERRIEN RICHARD J1UNIVERSAL SEPARATIONS INC1
Top patents by PatentIndex Score
12 records- 0194US11320172B1Air conditioner shut-off system and method to prevent drainage overflowWALKER JR DAVID TODD·Filed 2021·Granted May 3, 2022·8 cites·20 claims
- 0275US6277287B1Self leveling suction skimming deviceUNIVERSAL SEPARATIONS INC·Filed 2000·Granted Aug 21, 2001·23 cites·28 claims
- 0371US6315131B1Multi-directional flow gravity SeparatorUNIVERSAL SEPARATORS INC·Filed 2000·Granted Nov 13, 2001·26 cites·3 claims
- 0465US11692736B1Air conditioner shut-off system and method to prevent drainage overflowWALKER JR DAVID TODD·Filed 2022·Granted Jul 4, 2023·0 cites·11 claims
- 0562US6638437B2Multi-directional flow gravity separatorUNIVERSAL SEPARATORS INC·Filed 2001·Granted Oct 28, 2003·9 cites·11 claims
- 0660US6827853B2Manually controlled skimming of industrial oil contaminantsUNIVERSAL SEPARATORS INC·Filed 2003·Granted Dec 7, 2004·7 cites·17 claims
- 0754US6183654B1Self leveling suction skimming deviceUNIVERSAL SEPARATORS INC·Filed 1999·Granted Feb 6, 2001·19 cites·2 claims
- 0851US7160473B2Manually controlled skimming of industrial oil contaminantsUNIVERSAL SEPARATORS INC·Filed 2004·Granted Jan 9, 2007·2 cites·6 claims
- 0949US6790370B2Manually controlled skimming of industrial oil contaminantsUNIVERSAL SEPARATORS INC·Filed 2001·Granted Sep 14, 2004·8 cites·14 claims
- 1045US6145542AWater treatment apparatus for scale preventionLIFF HOLDINGS LTD·Filed 1997·Granted Nov 14, 2000·15 cites·14 claims
- 1144US7384548B2Manually controlled skimming of industrial oil contaminantsTERRIEN RICHARD J·Filed 2004·Granted Jun 10, 2008·8 cites·17 claims
- 1238US7223941B2Reduced-volume commercial space heating system and method for manufacturing sameWALKER IP AND BUSINESS ENTPR L·Filed 2003·Granted May 29, 2007·4 cites·34 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →