Darren L. Krahn

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Mentor, OH, US

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Patents Grantslast 30 patents

Information Patent Grant
Control system for a fluid operated jack
- Patent number 5,072,648
- Issue date Dec 17, 1991
- Caterpillar Industrial Inc.
- Darren L. Krahn
- B66 - HOISTING LIFTING HAULING
Information Patent Grant
Apparatus and method for controllably positioning forks of a materi...
- Patent number 5,052,882
- Issue date Oct 1, 1991
- Caterpillar Industrial Inc.
- Andrew P. Blau
- B66 - HOISTING LIFTING HAULING
Information Patent Grant
Apparatus for controllably positioning a lift mast assembly of a wo...
- Patent number 4,869,635
- Issue date Sep 26, 1989
- Caterpillar Industrial Inc.
- Darren L. Krahn
- B66 - HOISTING LIFTING HAULING