James R. Ahart

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St. Louis, MO, US

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Patents Grantslast 30 patents

Information Patent Grant
Utility distribution system for furniture
- Patent number 5,403,232
- Issue date Apr 4, 1995
- Steelcase Inc.
- Randall S. Helm
- E04 - BUILDING
Information Patent Grant
Workstation ventilation system
- Patent number 5,358,444
- Issue date Oct 25, 1994
- Steelcase Inc.
- Randall S. Helm
- F24 - HEATING RANGES VENTILATING