Assignee
JOHNSON ROBERT M
US·9 granted patents·119 citations·filing 1976–2008
Top patents by PatentIndex Score
9 records- 0176US4622494ASignalling deviceJOHNSON ROBERT M·Filed 1986·Granted Nov 11, 1986·30 cites·17 claims
- 0275US4058112AHead positioner and arm rest for eye surgeryJOHNSON ROBERT M·Filed 1976·Granted Nov 15, 1977·45 cites·1 claims
- 0367US7024992B2Mobile side-load metal crushing deviceJOHNSON ROBERT M·Filed 2002·Granted Apr 11, 2006·6 cites·19 claims
- 0459US8574731B2Device and method for augmenting the useful life of an energy storage deviceJOHNSON ROBERT M·Filed 2008·Granted Nov 5, 2013·0 cites·10 claims
- 0549US4549327ACleaner and chalk dust receptacle for chalk board erasersJOHNSON ROBERT M·Filed 1984·Granted Oct 29, 1985·10 cites·10 claims
- 0649US4193188AFlexible sawJOHNSON ROBERT M·Filed 1978·Granted Mar 18, 1980·10 cites·1 claims
- 0745US4240203AFlexible sawJOHNSON ROBERT M·Filed 1979·Granted Dec 23, 1980·6 cites·7 claims
- 0838US4344229AFlexible tree sawJOHNSON ROBERT M·Filed 1980·Granted Aug 17, 1982·7 cites·7 claims
- 0935US4890493AAutomatic tank reading gaugeJOHNSON ROBERT M·Filed 1988·Granted Jan 2, 1990·5 cites·4 claims
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