Inventor
COFFIELD TIM
US16 patents
⚠️ This page may combine multiple inventors who share the name “COFFIELD TIM”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
HON TECH INC
9 patentsUS7014269B2Mar 21, 2006
Chair back construction
HON TECH INC174 citations99
US6729691B2May 4, 2004
Chair back construction
HON TECH INC257 citations98
US6669292B2Dec 30, 2003
Ergonomic chair
HON TECH INC232 citations98
USD476821SJul 8, 2003
Ergonomic chair
HON TECH INC67 citations96
USD462187SSep 3, 2002
Chair
HON TECH INC24 citations92
USD460869SJul 30, 2002
Chair
HON TECH INC18 citations92
USD477151SJul 15, 2003
Armless ergonomic chair
HON TECH INC16 citations84
USD462858SSep 17, 2002
Chair back frame
HON TECH INC2 citations62
USD477164SJul 15, 2003
Chair back
HON TECH INC1 citations52
IRWIN SEATING COMPANY
6 patentsUS6168239B1Jan 2, 2001
Seat back with shaped internal ribs
IRWIN SEATING COMPANY90 citations96
US5951110ASep 14, 1999
Contoured plastic seat back
IRWIN SEATING COMPANY86 citations95
US6033027AMar 7, 2000
Seat back with corner indentations
IRWIN SEATING COMPANY30 citations91
US6652030B2Nov 25, 2003
Chair seat
IRWIN SEATING COMPANY18 citations89
US6523900B1Feb 25, 2003
Chair seat
IRWIN SEATING COMPANY24 citations89
US6042187AMar 28, 2000
Seat back with aperture identifiers
IRWIN SEATING COMPANY14 citations81