Inventor

SHAFER KENNETH

US3 patents

Patents

3 patents

US6701936B2Mar 9, 2004

Cigarette with smoke constituent attenuator

PHILIP MORRIS INC266 citations96

US6874508B2Apr 5, 2005

Cigarette with smoke constituent attenuator

PHILIP MORRIS INC46 citations93

US6868855B2Mar 22, 2005

Cigarette with smoke constituent attenuator

PHILIP MORRIS INC14 citations90