Inventor · disambiguated record
Robert L. Null
Also filed as: NULL ROBERT L
7 granted patents·369 citations·filing 1978–1999
88Inventor score
Top patents by PatentIndex Score
7 records- 0195US4205628AAnimal conditionerNULL ROBERT L·Filed 1978·Granted Jun 3, 1980·184 cites·6 claims
- 0287US6419424B1Coil pipe trailerNULL S MACHINE & MFG INC·Filed 1999·Granted Jul 16, 2002·119 cites·21 claims
- 0376US5819886ATrailer brake system with dual piston calipersFiled 1996·Granted Oct 13, 1998·29 cites·14 claims
- 0454US5622241ATrailer brake system with multiple point caliper unit mountingFiled 1995·Granted Apr 22, 1997·14 cites·20 claims
- 0552US5316110ATrailer brake system with release apparatusNULL ROBERT L·Filed 1992·Granted May 31, 1994·10 cites·12 claims
- 0644US5411120ATrailer brake system with release apparatusFiled 1994·Granted May 2, 1995·7 cites·10 claims
- 0742US5551538ATrailer brake system with release apparatusFiled 1995·Granted Sep 3, 1996·6 cites·10 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →