Donald A Kubik, Charles I Davis: Melt-blown fibrous electrets. Minnesota Mining and Manufacturing Company, Cruzan Alexander, Donald M Sell, Roger R Tamte, August 5, 1980: US04215682 (293 worldwide citation)

A persistent electric charge is introduced into melt-blown fibers during the melt-blowing process. When these charged fibers are incorporated into fibrous webs, they provide unique properties, including improved filtering properties.

Troy A Ferrell, Charles I Davis: Repair system and method of patching articles. Laura K Thomas, Waddey & Patterson, February 3, 1998: US05714208 (6 worldwide citation)

A repair kit comprising fiber reinforced patching material impregnated with an ultra-violet light activated resin contained in a sealed package. In the preferred embodiment, the patching materials include a first piece of fiber reinforced material having randomly arranged fiber filaments or strands ...