Erik A. Steffensen — 13 Patents at Hon Technology

Erik A. Steffensen has been granted 13 US patents while listed as an inventor at Hon Technology. The first was granted in 2002 and the most recent in June 2006. Erik A. Steffensen ranks #362,438 of 4,157,543 US inventors in our database (top 8.7%). Patent records list Erik A. Steffensen in Iowa City, IA, US.

Issued Patents All Time

Showing 1–13 of 13 patents

Patent #	Title	Co-Inventors	Date
7066537	Chair back construction	Tim Coffield, Marcus C. Koepke, Jay R. Machael, Craig H. Schultz	2006-06-27
7014269	Chair back construction	Tim Coffield, Marcus C. Koepke, Jay R. Machael, Craig H. Schultz	2006-03-21
6729691	Chair back construction	Marcus C. Koepke, Tim Coffield, Jay R. Michael, Matthew J. Phillips, Douglas A. Schroeder +1 more	2004-05-04
6669292	Ergonomic chair	Marcus C. Koepke, Jamie Krull, Jay R. Machael, Tim Coffield, Keith L. Davis +6 more	2003-12-30
D477151	Armless ergonomic chair	Marcus C. Koepke, Jay R. Machael, Craig H. Schultz, Douglas A. Schroeder, Brian R. Trego +4 more	2003-07-15
D477164	Chair back	Marcus C. Koepke, Craig H. Schultz, Douglas A. Schroeder, Tim Coffield, Patrick Burgess +1 more	2003-07-15
D476821	Ergonomic chair	Marcus C. Koepke, Jay R. Machael, Craig H. Schultz, Douglas A. Schroeder, Brian R. Trego +4 more	2003-07-08
6572190	Lumbar support for a chair	Marcus C. Koepke, Jay R. Machael, Matthew J. Phillips, Douglas A. Schroeder, Craig H. Schultz	2003-06-03
6568760	Chair of modular construction	Keith L. Davis, Marcus C. Koepke, Jamie Krull, Jay R. Machael, Matthew J. Phillips +4 more	2003-05-27
D462858	Chair back frame	Marcus C. Koepke, Craig H. Schultz, Douglas A. Schroeder, Tim Coffield, Patrick Burgess +1 more	2002-09-17
D462187	Chair	Marcus C. Koepke, Jay R. Machael, Craig H. Schultz, Douglas A. Schroeder, Brian R. Trego +3 more	2002-09-03
D460869	Chair	Marcus C. Koepke, Jay R. Machael, Craig H. Schultz, Douglas A. Schroeder, Brian R. Trego +3 more	2002-07-30
D457421	Castor	Marcus C. Koepke, Brian R. Trego	2002-05-21

Erik A. Steffensen — 13 Patents

Issued Patents All Time

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