Inventor
CHAPMAN ROY
US6 patents
⚠️ This page may combine multiple inventors who share the name “CHAPMAN ROY”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
COLUMBIA INSURANCE CO
4 patentsUS12546365B2Feb 10, 2026
Bearing assembly for tufting machine cutting attachment
COLUMBIA INSURANCE CO0 citations56
US12071979B2Aug 27, 2024
Bearing assembly for tufting machine cutting attachment
COLUMBIA INSURANCE CO0 citations56
US11674549B2Jun 13, 2023
Bearing assembly for tufting machine cutting attachment
COLUMBIA INSURANCE CO0 citations56
US12123120B2Oct 22, 2024
Beam brake system and method
COLUMBIA INSURANCE CO0 citations42