SH

Steven Heffner

WB Westinghouse Air Brake: 3 patents #129 of 220Top 60%
Overall (All Time): #1,604,376 of 4,157,543Top 40%
3
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
6739092 Transit vehicle door operator and lock Michael Manseau 2004-05-25
6446389 Tandem sliding door operator Michael Manseau 2002-09-10
6139073 Lock assembly Fotios Golemis 2000-10-31