MP

Mark A. Popjoy

FI Fichtel & Sachs Industries: 6 patents #1 of 13Top 8%
📍 Lansdale, PA: #166 of 839 inventorsTop 20%
🗺 Pennsylvania: #10,339 of 74,527 inventorsTop 15%
Overall (All Time): #656,336 of 4,157,543Top 20%
8
Patents All Time

Issued Patents All Time

Showing 1–8 of 8 patents

Patent #TitleCo-InventorsDate
8079310 Vertical position compensating device for a vehicle Michael McGuinness 2011-12-20
6698729 Gas spring having a controllable output force 2004-03-02
6206153 Adjustable installation with a controlled locking gas spring and an emergency locking gas spring 2001-03-27
6145638 Adjustable installation with a controlled locking gas spring and an emergency locking gas spring 2000-11-14
6092632 Gas spring with temperature compensation Robert Kopf 2000-07-25
6047797 Emergency locking gas spring 2000-04-11
5404972 Self-blocking gas spring with temperature-responsive bypass valve Paul K. McDonnell 1995-04-11
4989700 Gas spring with an anti-rattle piston assembly 1991-02-05