Inventor of kevlar has passed away at 90. Jun 23, 2014 8:00:08 GMT -5 Quote Select PostDeselect PostLink to PostMemberGive GiftBack to Top Post by Swampy on Jun 23, 2014 8:00:08 GMT -5 Stephanie Kwolek, PhD, worked at DuPont for 15 years before her breakthrough. Her invention has saved a lot of military and law-enforcement personnel.