M. Novotny, M.L. Lee, P.A. Peaden, J.C. Fjeldsted, and S.R. Springston, "Open-Tubular Supercritical Fluid Chromatography," Patent Number 4,479,380, October 30, 1984.

F.J. Yang, P.B. Farnsworth, K.E. Markides, M.L. Lee, and R.J. Skelton, "Element Specific Radio Frequency Discharge Helium Plasma Detector for Chromatography," Patent Number 4,851,683, July 25, 1989.

J.S. Bradshaw, B.A. Jones, K.E. Markides, and M.L. Lee, "Novel Liquid Crystalline Compounds and Polymers," Patent Number 4,864,003, September 5, 1989.

J.S. Bradshaw, M.L. Lee, and K.E. Markides, "Chromatographic Arylcarboxamide Polysiloxanes," Patent Number 4,909,935, March 20, 1990.

J.S. Bradshaw, M.L. Lee, and K.E. Markides, "Novel Oligoethylene Oxide-Containing Alkenes, Alkoxysilanes, and Polysiloxanes," Patent Number 4,996,277, February 26, 1991.

C-H. Sin and M.L. Lee, "Apparatus and Methods for Trace Component Analysis," Patent Number 5,070,240, December 3, 1991.

M.L. Lee, P.B. Farnsworth, and Zaiyou Liu, "Apparatus and Method for Simultaneous Supercritical Fluid Extraction and Gas Chromatography," Patent Number 5,205,154, April 27, 1993.

J.S. Bradshaw, B. E. Rossiter, B.J. Tarbot, D.J. Johnson, M.L. Lee, and K.E. Markides, "Chiral Copolymers with Oligosiloxane Spacers," Patent Number 5,268,442, December 7, 1993.

B.E. Rossiter, J.S. Bradshaw, S.L. Reese, A. Malik, and M.L. Lee, "Polysiloxanes Containing Pendant Cyano Substituted Biphenyls as Stationary Phases for Chromatographic Columns," Patent Number 5,262,052, November 16, 1993.

J.S. Bradshaw, M.L. Lee, and B.E. Rossiter, "Single Arm Attached Cyclodextrin Polysiloxanes and Use Thereof as Chiral Stationary Phases in Chromatographic Separation of Enantiomers," Patent Number 5,403,898, April 4, 1995.

M.L. Lee and D.C. Collins, "Atmospheric Pressure Ionization Ion Mobility Spectrometry," Patent Number 6,586,732, July 1, 2003.

E.D. Lee, M.L. Lee, A.L. Rockwood, L. Zhou "Method and Apparatus for Aerodynamic Ion Focusing," Patent Number 6,992,299, January 31, 2006.

E.D. Lee, A.L. Rockwood, B. Yue, and M.L. Lee, "Electron Ionization Source for Orthogonal Acceleration Time-of-Flight Mass Spectrometry," Patent Number 7,060,987, June 13, 2006.

E.D. Lee, A.L. Rockwood, M.L. Lee, and S.E. Tolley, "Single Device for Ion Mobility and Ion Trap Mass Spectrometry," Patent Number 7,075,070, July 11, 2006.