CK

Carolyn Keller

HM Herman Miller: 14 patents #23 of 427Top 6%
📍 Holland, MI: #113 of 1,299 inventorsTop 9%
🗺 Michigan: #6,365 of 86,293 inventorsTop 8%
Overall (All Time): #356,183 of 4,157,543Top 9%
14
Patents All Time

Issued Patents All Time

Showing 1–14 of 14 patents

Patent #TitleCo-InventorsDate
6966604 Chair with a linkage assembly William E. Stumpf, Rodney C. Schoenfelder, Donald Chadwick, Timothy P. Coffield, Randy J. Sayers +4 more 2005-11-22
6733080 Seating structure having a backrest with a flexible membrane and a moveable armrest William E. Stumpf, Rodney C. Schoenfelder, Donald Chadwick, Timothy P. Coffield, Randy J. Sayers +2 more 2004-05-11
6726286 Seating structure having a fabric with a weave pattern William E. Stumpf, Rodney C. Schoenfelder, Donald Chadwick, Timothy P. Coffield, Randy U. Sayers +2 more 2004-04-27
6722741 Seating structure having a backrest with a bowed section William E. Stumpf, Rodney C. Schoenfelder, Donald Chadwick, Timothy P. Coffield, Randy J. Sayers +2 more 2004-04-20
6702390 Support assembly for a seating structure William E. Stumpf, Rodney C. Schoenfelder, Donald Chadwick, Timothy P. Coffield, Randy J. Sayers +2 more 2004-03-09
6588842 Backrest William E. Stumpf, Rodney C. Schoenfelder, Donald Chadwick, Timothy P. Coffield, Randy J. Sayers +2 more 2003-07-08
6386634 Office chair William E. Stumpf, Rodney C. Schoenfelder, Donald Chadwick, Timothy P. Coffield, Randy J. Sayers +4 more 2002-05-14
6125521 Process for making an office chair William E. Stumpf, Rodney C. Schoenfelder, Donald Chadwick, Timothy P. Coffield, Randy J. Sayers +2 more 2000-10-03
6059368 Office chair William E. Stumpf, Rodney C. Schoenfelder, Donald Chadwick, Timothy P. Coffield, Randy J. Sayers +2 more 2000-05-09
6035901 Woven fabric membrane for a seating surface William E. Stumpf, Rodney C. Schoenfelder, Donald Chadwick, Timothy P. Coffield, Randy J. Sayers +2 more 2000-03-14
5772282 Tilt control mechanism for a chair William E. Stumpf, Rodney C. Schoenfelder, Donald Chadwick, Timothy P. Coffield, Randy J. Sayers +4 more 1998-06-30
D386023 Seat and back unit for a chair William E. Stumpf, Rodney C. Schoenfelder, Donald Chadwick 1997-11-11
D377431 Seat and back unit for a chair William E. Stumpf, Rodney C. Schoenfelder, Donald Chadwick 1997-01-21
D346279 Chair William E. Stumpf, Rodney C. Schoenfelder, Donald Chadwick 1994-04-26