A high-ranking official of Lockformer Co. in Lisle testified Monday that company officials have known since 1985 that potentially dangerous chemical spills were occurring at its Ogden Avenue plant.

Around 1940, Theresa Wahl of Wilmington, Delaware, was quietly taking on odd jobs — laundry, housekeeping and cleaning — without her husband’s knowledge. Her husband, Horace Wahl Sr., was the owner of ...

The early to mid-1990s was a very difficult time for the industry due to patent litigation initially brought against The Lockformer Company, which at the time was a division of Met-Coil. In March 1991 ...