Processes and products involving cell modification.
R.O. BECKER. United States Patent No. 4,528,265, Filed May 11, 1982.

Iontopheretic system for stimulation of tissue healing and regeneration.
R.O. BECKER, A.B. Flick & A.J. Becker. United States Patent No. 5,814,094, Filed March 28, 1996.