New Corporate Headquarters
State-of-the-art distribution center and corporate headquarters built in Swedesboro, NJ.
LaMotte Chemical Company
AHT acquires LaMotte Chemical Company of Chestertown, MD
AHT Changes Its Purpose
AHT becomes a holding company, transferring its distribution business to
Chairman of AHT
Edward B. Patterson Jr. named Chairman of AHT
President of AHT
President of AHT
Headquarters in Historic Philadelphia
AHT moves to a seven story building in historic Philadelphia
Chairman of AHT
Edward B. Patterson Sr. was named Chairman of AHT
J. Edward Patterson is named Chairman of AHT
J. Edward Patterson is named Chairman of AHT
AHT engages the Corning Glass Company to create Pyrex flasks and beakers.
The resulting disruption of scientific glassware from World War I
AHT Moves
AHT moves to West Washington Square at 230 South Seventh
