Inventor

SHEFFLER ROBERT

US3 patents

⚠️ This page may combine multiple inventors who share the name “SHEFFLER ROBERT”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

PLASTEK IND INC

1 patent

US5248213ASep 28, 1993

Seal for roll-on dispenser

PLASTEK IND INC25 citations89

BRENT RIVER PACKAGING CORP

1 patent

US5494200AFeb 27, 1996

Closure and sifter assemblage having automatically releasable, interlocking bead retainer structures

BRENT RIVER PACKAGING CORP27 citations87

CHANG CHARLES

1 patent

US6568090B2May 27, 2003

Cosmetic pencil sharpener

CHANG CHARLES8 citations71