Peter J. Hefferen

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Pittsburgh, PA, US

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Patents Grantslast 30 patents

Information Patent Grant
Distributed architecture
- Patent number 6,154,686
- Issue date Nov 28, 2000
- Innovex Technologies
- Peter J. Hefferen
- B08 - CLEANING
Information Patent Grant
System and method for directing air flow having a sash
- Patent number 5,988,860
- Issue date Nov 23, 1999
- Innovex Technologies, Inc.
- Peter J. Hefferen
- B08 - CLEANING

Patents Applicationslast 30 patents

Information Patent Application
Small building automation control system
- Publication number 20020152298
- Publication date Oct 17, 2002
- Christopher Kikta
- H04 - ELECTRIC COMMUNICATION TECHNIQUE