Inventor

SPIEGEL MICHAEL D

US3 patents

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

PENN COLOR INC

2 patents

US10647804B2May 12, 2020

Methods for making water based cationic polymers for ink, coating, and film applications

PENN COLOR INC0 citations45

US9434849B2Sep 6, 2016

Water based anionic polymers for ink, coating, and film applications

PENN COLOR INC1 citations45

SPIEGEL MICHAEL D

1 patent

US9441123B2Sep 13, 2016

Cationic water based polymers for ink, coating, and film applications

SPIEGEL MICHAEL D2 citations51