History of Growth

1943

Stone Industrial Corporation
S.W. Briggs & W.A. Brazerol developed pleated paper filter cartridges to replace waste cotton sock type filters used in diesel locomotives

1949

Stone Filter Co. Created as a subsidiary of S.I.C. to supply EMD and a few railroads

1971

J.L. Clark Manufacturing Co. Purchased S.I.C. (College Park, MD)

1974

Stone Filter Subsidiary Moved to Lancaster, PA (present location) and was named Paper Products Division of J.L. Clark

1987

J.L. Clark Manufacturing Co. renamed CLARCOR, Paper Products Division renamed Clark Filter

1992

CLARCOR acquired the assets of M & J Diesel Locomotive Filter Co. (Chicago) and moved them to Lancaster to expand Clark Filter

1993

CLARCOR acquired Guardian/United Engine Life Filtration Co. (Louisville, KY) and transferred all lube & fuel filter production and sales to Clark Filter

1994

Moved railroad air filtration products from U.E.L. to Lancaster to expand Clark Filter

1995

Moved all roll-pack (sock type) production and sales from U.E.L. to Clark Filter

1996

Airguard and Clark set-up fiberglass "baggie" line to supply Engine Guard air intake filters for railroads worldwide

1997

Baldwin helped FIBAMEX and Clark establish Mexico City production to serve the Mexican railroads

2000

Moved Locomotive Baggies air filter production to Lancaster, PA. This state of the art production system makes the Clark product second to none in the industry.

2001

Initiated Panel Filter production

2002

Moved all roll-pack (sock type) production and sales to FIBAMEX (Mexico City)

2002

Moved Dust Collector Cartridge production from Airguard (Louisville, KY) to Clark Filter

2006CLARCOR acquired the assets of Leedar Inc. (Shawnee, OK) and moved to Lancaster for expanding industrial product line
2007 Clark Filter introduces ProTura® - Advanced Nanofiber Filtration Technology - Manufactured in Lancaster, PA
2010Clark Filter introduces ProPulse™ - Advanced Pleated Bags designed for bag house dust collection - Manufactured in Lancaster, PA