Inventor

ERDMAN GERALD D

US2 patents

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

VENTURMATION INC

1 patent

US4263024AApr 21, 1981

Air cleaning device

VENTURMATION INC9 citations56

SMITH DAVID LEE

1 patent

US8747543B2Jun 10, 2014

PCC filler composition for improved printability of supercalendered papers

SMITH DAVID LEE2 citations50