Inventor · disambiguated record
David Robertson
Also filed as: ROBERTSON DAVID · ROBERTSON DAVID H · ROBERTSON DAVID HENRY
8 granted patents·1 pending application·126 citations·filing 1980–2022
87Inventor score
Top patents by PatentIndex Score
9 records- 0181US10948113B1Longitudinal expansion joint for piping systemFREUDENBERG OIL & GAS LLC·Filed 2019·Granted Mar 16, 2021·3 cites·5 claims
- 0281US5062406AAttachment for crossbow that shoots arrows to enable the crossbow to shoot slugsROBERTSON DAVID H·Filed 1989·Granted Nov 5, 1991·44 cites·34 claims
- 0374USD468106SBroom and dust pan combinationHAYCO MFG LTD·Filed 2001·Granted Jan 7, 2003·21 cites·1 claims
- 0469US5411422ASpiral propeller having axial voidFiled 1994·Granted May 2, 1995·16 cites·5 claims
- 0563US4322005ADisplay stacker with biased pivoted traysDISPLAYCO·Filed 1981·Granted Mar 30, 1982·29 cites·16 claims
- 0650US6854606B2Moveable storage and display rack for rolled flooring materialsFiled 2003·Granted Feb 15, 2005·1 cites·25 claims
- 0747US2023250905A1Pipe flange connection system with static sealFREUDENBERG OIL & GAS LLC·Filed 2022·Application pending·0 cites
- 0843US5802956AMethod and apparatus for the removal of kraeusen in the brewing processFiled 1996·Granted Sep 8, 1998·10 cites·16 claims
- 0929US4345523ARailway car stabilizerROBERTSON DAVID H·Filed 1980·Granted Aug 24, 1982·2 cites·6 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →