Assignee
BARR ROBERT A
US·6 granted patents·3 pending applications·124 citations·filing 1984–2020
Top patents by PatentIndex Score
9 records- 0189US11285652B2No solid bed extruder screwBARR ROBERT A·Filed 2020·Granted Mar 29, 2022·2 cites·15 claims
- 0282US4779989ATransfer mixer assembly for use with an extruder screw of a polymer extruder or the likeBARR ROBERT A·Filed 1986·Granted Oct 25, 1988·45 cites·30 claims
- 0370US4558954AExtruder screw and positive displacement wave pump assemblyBARR ROBERT A·Filed 1984·Granted Dec 17, 1985·24 cites·20 claims
- 0469US4519712APositive displacement pump assemblyBARR ROBERT A·Filed 1984·Granted May 28, 1985·23 cites·8 claims
- 0560US4558991AWave pump assemblyBARR ROBERT A·Filed 1985·Granted Dec 17, 1985·17 cites·6 claims
- 0653US2014020157A1Soft safe helmetBARR ROBERT A·Filed 2013·Application pending·0 cites
- 0749US2019082769A1Helmet for playing sportsBARR ROBERT A·Filed 2018·Application pending·0 cites
- 0847US6254266B1Floating ring mixer for extruderBARR ROBERT A·Filed 1998·Granted Jul 3, 2001·13 cites·8 claims
- 0940US2018079126A1Independently driven device for use with plastic melt feed screwBARR ROBERT A·Filed 2016·Application pending·0 cites
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Counts cover granted patents and pending applications in the PatentIndex corpus. How scoring works →