PC

Philip E. Crossman

LP Leggett & Platt: 7 patents #6 of 101Top 6%
LM L&P Property Management: 4 patents #106 of 538Top 20%
HM Herman Miller: 3 patents #120 of 427Top 30%
AS American Seating: 2 patents #23 of 53Top 45%
AM Amstore: 1 patents #6 of 10Top 60%
SF Stow & Davis Furniture: 1 patents #9 of 17Top 55%
Overall (All Time): #241,548 of 4,157,543Top 6%
19
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
7611202 Tilt mechanism for a chair LeRoy Johnson 2009-11-03
7185951 Chair and synchrotilt chair mechanism LeRoy Johnson 2007-03-06
6966604 Chair with a linkage assembly William E. Stumpf, Rodney C. Schoenfelder, Donald Chadwick, Carolyn Keller, Timothy P. Coffield +4 more 2005-11-22
6685267 Chair and synchrotilt chair mechanism LeRoy Johnson 2004-02-03
6536127 Method for optimization of J-back configuration for a chair Bryan H. Zeeuw, Steven M. Lynch, LeRoy Johnson 2003-03-25
6386634 Office chair William E. Stumpf, Rodney C. Schoenfelder, Donald Chadwick, Carolyn Keller, Timothy P. Coffield +4 more 2002-05-14
6139103 Synchronized chair seat and backrest tilt control mechanism Kenneth C. Hybarger, Bryan H. Zeeuw, LeRoy Johnson, David A. Young 2000-10-31
6027168 Chair seat horizontal adjustment mechanism Bryan H. Zeeuw 2000-02-22
6010189 Synchronized chair seat and backrest tilt control mechanism Kenneth C. Hybarger, Bryan H. Zeeuw, LeRoy Johnson, David A. Young 2000-01-04
6000756 Synchronized chair seat and backrest tilt control mechanism Kenneth C. Hybarger, Bryan H. Zeeuw, LeRoy Johnson, David A. Young 1999-12-14
5772282 Tilt control mechanism for a chair William E. Stumpf, Rodney C. Schoenfelder, Donald Chadwick, Carolyn Keller, Timothy P. Coffield +4 more 1998-06-30
5373793 Adaptor housing for mounting an adjustable height work surface to a wall panel 1994-12-20
5230290 Flush-mounted crank 1993-07-27
4948198 Knee-tilt chair control Kenneth C. Hybarger, Bryan H. Zeeuw, David A. Young 1990-08-14
4716699 Wall panels with single load-bearing connector posts Terry Mitchell 1988-01-05
4586748 Adjustable chair iron Douglas W. Dingler, James F. Gadsbey 1986-05-06
4585131 Variable decor merchandising system Douglas D. Amstutz, Donald D. Kelemen 1986-04-29
4458942 Three-quarter fold retracting chair 1984-07-10
4189876 Beam-mounted folding chairs Arthur L. Van Ryn 1980-02-26