Inventor · disambiguated record
David J. Roldness
Also filed as: ROLDNESS DAVID J
4 granted patents·38 citations·filing 1979–1980
75Inventor score
Files withPULLMAN INC4
Top patents by PatentIndex Score
4 records- 0152US4248557ARailway car counter balanced tilting deckPULLMAN INC·Filed 1979·Granted Feb 3, 1981·13 cites·6 claims
- 0251US4324189ACar end foldable doors locking devicePULLMAN INC·Filed 1980·Granted Apr 13, 1982·13 cites·12 claims
- 0337US4287833AAuto carrier railway carPULLMAN INC·Filed 1979·Granted Sep 8, 1981·6 cites·14 claims
- 0429US4318649ALocking mechanism for B deck of auto-rack railway carPULLMAN INC·Filed 1980·Granted Mar 9, 1982·6 cites·8 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →