Inventor · disambiguated record
Josef Roob
Also filed as: ROOB JOSEF
4 granted patents·141 citations·filing 1978–1981
80Inventor score
Files withLEFFER STAHL & APP4
Top patents by PatentIndex Score
4 records- 0181US4202416AMethod and apparatus for sinking a cased borehole for producing cased pile foundationsLEFFER STAHL & APP·Filed 1978·Granted May 13, 1980·59 cites·5 claims
- 0271US4248550APile extraction apparatusLEFFER STAHL & APP·Filed 1979·Granted Feb 3, 1981·26 cites·8 claims
- 0365US4441749AElevator for casingLEFFER STAHL & APP·Filed 1981·Granted Apr 10, 1984·35 cites·7 claims
- 0463US4193462ARotary boring headLEFFER STAHL & APP·Filed 1978·Granted Mar 18, 1980·21 cites·3 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →