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U.S. Patents

Staphylococcus aureus exopolysaccharide and process 

Joyce, J.G., Cook, J.C., Abeygunawarda, C., Grimm, K.M., Przysiecki, C.T., Hepler, R.W., Ip, C.C., Roper, D.K., Xu, Q.W., Jansen, K.U., Keller, P.M., Cope, L.D.
U.S. Patent 7,157,443. Issued January 2, 2007

Simultaneous amplification and detection of deoxyribonucleic acid by an optical method using surface plasmon resonance

D.K. Roper
U.S. Patent 7,988,672. Issued August 13, 2011

Method of making nanoparticles by electroless plating

Roper, D.K., Ahn, W., Taylor, B.J., Dall'Asen, A.G.
U.S. Patent 8,097,295. Issued January 17, 2012

Provisional U.S. Patent Applications

Direct, instantaneous measurement of energy flux and heat conversion in microvolume samples

Roper, D.K.; Ahn, W.   
U.S. Provisional Application.  Reference number 0274-7999US

Increasing head transduction via surface plasmon resonance by modulating resonant continuous-wave irradiation

Roper, D. K.; Ahn, W 
U.S. Patent Application No. 12/525,391 filed on July, 2009

Apparatus and methods for increasing lateral mass transfer over molecule sensors

Roper, D.K.
U.S. Provisional Application filed 
Dec. 30, 2005.  Reference number 0275-7630US.

Tunable spectroscopic enhancement via transforming electroless plating into metal films with predictable optical features

Roper, D.K.; Ahn, W.; Taylor, B.; Dall’ Asen, Y.
U.S. Provisional Application.  Reference number U-4377 (083404-0139).

Published U.S. Patent Applications

Direct measurement of sorption on 3-D surfaces such as resins, membranes or other preformed materials using lateral dispersion to estimate rapid sorption kinetics or high binding capacities

Roper, D.K.
U.S. Patent Application 2005271141.  Filed Nov. 9, 2004.