DN

Duane F. Nagel

ST Steelcase: 6 patents #162 of 809Top 25%
SD Steelcase Development: 3 patents #140 of 472Top 30%
📍 Grand Rapids, MI: #192 of 1,824 inventorsTop 15%
🗺 Michigan: #10,567 of 86,293 inventorsTop 15%
Overall (All Time): #580,380 of 4,157,543Top 15%
9
Patents All Time

Issued Patents All Time

Showing 1–9 of 9 patents

Patent #TitleCo-InventorsDate
8066240 Height adjustable support assembly for supporting a furniture component above a work surface Joylene M. Battey 2011-11-29
8037642 Panel assembly including slat wall segment Joylene M. Battey, Anthony A. Stachowiak 2011-10-18
7866268 Height adjustable leg assembly Joylene M. Battey 2011-01-11
6554364 Articulating armrest Arnold B. Dammermann, David Bodnar, Michael L. Deimen, Thomas R. Hahn, Charles P. Roossien +2 more 2003-04-29
6099076 Chair back construction Daniel P. Beemer, Dale M. Groendal, Jeffrey A. Hall, Edward L. Tyler 2000-08-08
6062649 Chair back construction Daniel P. Beemer, Dale M. Groendal, Jeffrey A. Hall, Edward L. Tyler 2000-05-16
5842264 Chair construction and method of assembly Charles P. Roossien, David C. Pugh, Dale M. Groendal, James E. Massey, Robert Scheper +3 more 1998-12-01
5662381 Chair construction and method of assembly Charles P. Roossien, David C. Pugh, Dale M. Groendal, James E. Massey, Robert Scheper +3 more 1997-09-02
5318346 Chair with zero front rise control Charles P. Roossien, David C. Pugh, Dale M. Groendal, James E. Massey, Robert Scheper +4 more 1994-06-07