Inventor
BARRETT LEONARD W
US7 patents
⚠️ This page may combine multiple inventors who share the name “BARRETT LEONARD W”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
3M INNOVATIVE PROPERTIES CO
3 patentsUS6391429B1May 21, 2002
Permeable shaped structures of active particulate bonded with PSA polymer microparticulate
3M INNOVATIVE PROPERTIES CO107 citations98
US6234171B1May 22, 2001
Molded respirator containing sorbent particles
3M INNOVATIVE PROPERTIES CO61 citations94
US6102039AAug 15, 2000
Molded respirator containing sorbent particles
3M INNOVATIVE PROPERTIES CO79 citations94
MINNESOTA MINING & MFG
3 patentsUS5617849AApr 8, 1997
Respirator having thermochromic fit-indicating seal
MINNESOTA MINING & MFG183 citations98
US5952420ASep 14, 1999
Pressure-sensitive adhesive polyacrylate polymer microparticulate and method of making
MINNESOTA MINING & MFG47 citations95
US5696199ADec 9, 1997
Pressure-sensitive adhesive polyacrylate polymer and method of making
MINNESOTA MINING & MFG38 citations95