PH

Peter J. Hefferen

📍 Pittsburgh, PA: #3,179 of 7,570 inventorsTop 45%
🗺 Pennsylvania: #30,495 of 74,527 inventorsTop 45%
Overall (All Time): #2,244,274 of 4,157,543Top 55%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
6154686 Distributed architecture Christopher E. Kikta, Bruce D. Arnold, John F. Wiedmann 2000-11-28
5988860 System and method for directing air flow having a sash Christopher E. Kikta, John F. Wiedmann 1999-11-23