WS

William E. Stumpf

HM Herman Miller: 31 patents #6 of 427Top 2%
KM Knape & Vogt Manufacturing: 11 patents #3 of 40Top 8%
RE Recovery Engineering: 2 patents #8 of 20Top 40%
SI Spinal Designs International: 2 patents #2 of 5Top 40%
Overall (All Time): #63,542 of 4,157,543Top 2%
46
Patents All Time

Issued Patents All Time

Showing 25 most recent of 46 patents

Patent #TitleCo-InventorsDate
7594700 Contoured seating structure Rodney C. Schoenfelder, Donald Chadwick, Carolyn Maalouf, Timothy P. Coffield, Randy J. Sayers +2 more 2009-09-29
6966604 Chair with a linkage assembly Rodney C. Schoenfelder, Donald Chadwick, Carolyn Keller, 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 Rodney C. Schoenfelder, Donald Chadwick, Carolyn Keller, Timothy P. Coffield, Randy J. Sayers +2 more 2004-05-11
6726286 Seating structure having a fabric with a weave pattern Rodney C. Schoenfelder, Donald Chadwick, Carolyn Keller, Timothy P. Coffield, Randy U. Sayers +2 more 2004-04-27
6722741 Seating structure having a backrest with a bowed section Rodney C. Schoenfelder, Donald Chadwick, Carolyn Keller, Timothy P. Coffield, Randy J. Sayers +2 more 2004-04-20
6702390 Support assembly for a seating structure Rodney C. Schoenfelder, Donald Chadwick, Carolyn Keller, Timothy P. Coffield, Randy J. Sayers +2 more 2004-03-09
6588842 Backrest Rodney C. Schoenfelder, Donald Chadwick, Carolyn Keller, Timothy P. Coffield, Randy J. Sayers +2 more 2003-07-08
6386634 Office chair Rodney C. Schoenfelder, Donald Chadwick, Carolyn Keller, Timothy P. Coffield, Randy J. Sayers +4 more 2002-05-14
6125521 Process for making an office chair Rodney C. Schoenfelder, Donald Chadwick, Carolyn Keller, Timothy P. Coffield, Randy J. Sayers +2 more 2000-10-03
6059368 Office chair Rodney C. Schoenfelder, Donald Chadwick, Carolyn Keller, Timothy P. Coffield, Randy J. Sayers +2 more 2000-05-09
6035901 Woven fabric membrane for a seating surface Rodney C. Schoenfelder, Donald Chadwick, Carolyn Keller, Timothy P. Coffield, Randy J. Sayers +2 more 2000-03-14
D420523 Chair Rodney C. Schoenfelder, Donald Chadwick, Carolyn Maalouf 2000-02-15
D412625 Set of carrels Edgar B. Montague, Barry Lynn Mahal 1999-08-10
D412406 Rocking chair Jean-Francois Gomree, Jeffrey A. Weber 1999-08-03
5772282 Tilt control mechanism for a chair Rodney C. Schoenfelder, Donald Chadwick, Carolyn Keller, Timothy P. Coffield, Randy J. Sayers +4 more 1998-06-30
5765804 Pneumatic support colunm for a chair Rodney C. Schoenfelder, Donald Chadwick, George A. Miles 1998-06-16
D386023 Seat and back unit for a chair Rodney C. Schoenfelder, Donald Chadwick, Carolyn Keller 1997-11-11
D377431 Seat and back unit for a chair Rodney C. Schoenfelder, Donald Chadwick, Carolyn Keller 1997-01-21
D362583 Carafe water purifier Jeffrey A. Weber, Timothy Jordan Prescott 1995-09-26
D358868 Faucet mounted water treatment device Richard D. Hembree, Jeffrey A. Weber, James L. Lund 1995-05-30
D346279 Chair Rodney C. Schoenfelder, Donald Chadwick, Carolyn Keller 1994-04-26
D334623 Traction unit for removing loading from the back Charles V. Burton, Gregory K. Peterson, Casey L. Carlson, Jeffrey A. Weber 1993-04-06
5195949 Traction device Charles V. Burton, Gregory K. Peterson, Casey L. Carlson, Jeffrey A. Weber 1993-03-23
D331630 Louvered wall tile 1992-12-08
D327839 Cantilever bracket Casey L. Carlson 1992-07-14