Patents...

1. Roy, R., “Densification of Glass, Germanium Oxide, Silica or Boric Acid,” United States Patent 3,098,699 (July 23, 1963)

2. Wood, C., J. C. Schottmiller and R. Roy, “Electrophotographic Process Using a Single Phase Photoconductive Glass Imaging Layer,” United States Patent 3,507,646 (April 21, 1970)

3. Wood, Charles, J. C. Schottmiller and R. Roy, “Electrophotographic Denitrified Glass Binder Plate,” United States Patent 3,655,376 (April 11, 1972)

4. Roy, R., Heinz K. Henisch and W. B. White, “Methods of Stimulating Luminescence in Phosphors,” United States Patent 3,716,741 (February 13, 1973)

5. Shaffer, P.T., R. Roy and N. H. Macmillan, “Conversion of Radioactive Waste to Stable Form for Disposal,” United States Patent 4,388,215 (July 6, 1982)

6. Roy, R. and J. Alamo, “Mirror Substrate of Atomically Substituted NaZr2P3O12 Low Expansion Ceramic Material,” United States Patent 4,587,172 (May 6, 1986)

7. Limaye, S. Y., D. K. Agrawal, H. A. McKinstry and R. Roy, “Low Expansion Ceramic,” United States Patent 4,801,566 (January 31, 1989 Produced Thereby,” European

8. Komarneni, S. and R.  Roy, “Process for Cesium Decontamination and Immobilization,” U.S. Patent 4,808,318 (Feb. 28, 1989)

9. R. Roy and S. Komarneni, “Method of Preparing Ceramic Compositions at Lower Sintering Temperatures,” U.S. Patent #4,829,031 (May 9, 1989)

10. R. Roy, R. Messier, H.S. Devan, A. Badzian, P. Ravindranathan, “Method for Synthesizing Diamond and Products, European Patent Office, Patent Specification Bulletin 1998/17,
    EP 0 662 868 B1 (April 22, 1998)

11. R.Roy, D. Agrawal, P.Gigl and J.Cheng"Method and Apparatus for Fabrication and Sintering Composite Inserts," United States Patent, 6,011,248 (Jan. 4, 2000)

12. R. Roy, D. Agrawal, and J. Cheng, "Process and Apparatus for the Preparation of Particulate or Solid Parts" United States Patent, 6,004,505 (2000)

13. Mahlon Denton Dennis, R. Roy, J.P. Cheng, D. Agrawal, “Method and Apparatus for Fabrication of Cobalt Alloy Composite Inserts,” United States Patent, 6,063,333 (5/16/2000)

14. R. Roy, D. Agrawal, M. Dennis et al. “Process and apparatus for the preparation of particulate or solid parts,” United States Patent Number 6,126,895. (Oct. 3, 2000)

15. M. Dennis, R. Roy, D. Agrawal, P. Gigl, "Method and apparatus for transporting green work pieces through a microwave sintering system," United States Patent Number 6,066,290 (May 23, 2000)

16. M. Dennis, D. Agrawal, R. Roy, J. Cheng, P. Gigl, "Process and apparatus for the preparation of particulate or solid parts," United States Patent Number 6,126,895 (Oct. 3, 2000)

17. R.Roy, D.K. Agrawal, J. Cheng, "Process for Sintering Powder Metal Components," United States Patent Number 6,183,689 (Feb. 6, 2001)

18. A.R. Badzian, R. Roy, T. Badzian, W.R. Drawl, P. Mistry, M.C. Turchan, "Application of electron field emission from diamond grown by a multiple pulsed laser process," United States Patent Number 6,200,183 (March 13, 2001)

19. Rustum Roy, Russell Messier, Hardial S. Dewan, Andrzej Badzian, Palaniappan Ravindranathan, “Method for synthesizing solids such as diamond and products produced thereby,” United States Patent Number 6,342,195 B1 (January 29, 2002)

20. Rustum Roy, Jiping Cheng and Dinesh Agrawal, “Microwave Processing in Pure H Fields and Pure E Fields,” United States Patent Number 6,365,885 (April 2, 2002)

21. Rustum Roy, et al. “Diamond Coatings Deposited on WC-CO Substrate by Multiple Laser,” United States Patent Number 6,370,165 (April 9, 2002)

22. Shalva Gedevanishvili, Dinesh K. Agrawal, Rustum Roy, Balasubramaniam Vaidhyanathan “Microwave Processing using highly microwave absording powdered material layers,” US Patent #6,512,216 (Jan. 28, 2003)

   23.   Rustum Roy, Dinesh Agrawal, Jiping Cheng "Process for Sintering Powder Metal Components," US Patent #6,805,835 B2

             (Oct. 19, 2004)

    24. J. Cheng, D. Agrawal and R. Roy,    “Method and Apparatus for the Pretion of Transparent Alumina Ceramics Microwave Sintering,” US Patent 6,812,441 B2 (Nov. 2, 2004)