Inventor · disambiguated record
Karl H. Hellmann
Also filed as: HELLMANN KARL · HELLMANN KARL H
2 granted patents·102 citations·filing 1982–1996
68Inventor score
Files withRUHRKOHLE AG1
Top patents by PatentIndex Score
2 records- 0186US4477338AMethod and apparatus for processing high-ash coal slurries by flotation, particularly for processing gas coal and open-burning coal which are difficult to floatRUHRKOHLE AG·Filed 1982·Granted Oct 16, 1984·60 cites·39 claims
- 0280US5617823ASpark-ignited reciprocating piston engine having a subdivided combustion chamberFiled 1996·Granted Apr 8, 1997·42 cites·16 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →