3M Must Face Remaining Patent Challenge Against Spray Adhesive (Correct)

3M Co. must face trial on one allegation it violated a rival adhesive maker’s patented pressurized spray-hose canister design after a Massachusetts federal judge tossed accusations against a raft of 3M’s other spray-canister products.

Judge George A. O’Toole Jr. of the US District Court for the District of Massachusetts on Thursday threw out the bulk of Evergreen Adhesives Inc.'s allegations as insufficiently detailed to support patent infringement complaints.

One allegation aimed at a specific pressurization range for a spray-hose canister—which matches that of 3M’s PB910 low VOC spray-adhesive canister—was “sufficient to put the defendants on notice of what activity ...