Hefferen, Peter J.
Patent Applications and Registrations
Patent applications and USPTO patent grants for Hefferen, Peter J..The latest application filed is for "small building automation control system".
- Hefferen, Peter J. - Pittsburgh PA
| Patent | Date |
|---|---|
| Small building automation control system App 20020152298 - Kikta, Christopher ; et al. | 2002-10-17 |
| Distributed architecture Grant 6,154,686 - Hefferen , et al. November 28, 2 | 2000-11-28 |
| System and method for directing air flow having a sash Grant 5,988,860 - Hefferen , et al. November 23, 1 | 1999-11-23 |
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