T.E. Chefalas and C.C. Tappert, "Silent Training by Error Correction for On-line Handwriting Recognition Systems," U.S. Patent 5,544,260, August 1996.
T.E. Chefalas and C.C. Tappert, " Methods and Apparatus for Evolving a Starter Set of Handwriting Prototypes into a User-specific Set," U.S. Patent 5,319,721, June 1994.
T. Fujisaki, J. Kim, G.J. Leibman, and C.C. Tappert, " On-line Handwriting Recognition Using a Prototype Confusability Dialog," U.S. Patent 5,315,667, May 1994.
T.E. Chefalas and C.C. Tappert, " Elastic Prototype Averaging in Online Handwriting Recognition," U.S. Patent 5,287,415, February 1994.
J. Kim, G.J. Leibman, and C.C. Tappert, " Method and Apparatus for Improving Prototypes of Similar Characters in On-line Handwriting Recognition," U.S. Patent 5,285,505, February 1994.
T.E. Chefalas, T. Fujisaki, J. Kim, and C.C. Tappert, " Robust Prototype Establishment in an On-line Handwriting Recognition System," U.S. Patent 5,121,441, June 1992.
H.A. Ellozy, H.H. Jeanty, and C.C. Tappert, " Handwriting Recognition Employing Pairwise Discriminant Measures," U.S. Patent 5,005,205, April 1991.
C.C. Tappert, "Recognition System for Run-on Handwritten Characters," U.S. Patent 4,731,857, March 1988.
A.S. Fox, E.C. Greanias, J. Kim, and C.C. Tappert, "System for Automatic Adjustment and Editing of Handwritten Text Image," U.S. Patent 4,727,588, February 1988.
(Many technical inventions not patented were published in the IBM Technical Disclosure Bulletin.)