Consulting Chemist

Douglas R. Chrisope, Ph.D.

 

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Ashless or low-ash synthetic base compositions and additives therefor. U. S. Patent 5,360,562: November 1, 1994; Douglas R. Chrisope and Rolfe J. Hartley; Ethyl Petroleum Additives, Inc. was found useful and cited by:
  1. Lubricating compositions. US 6,962,895; Curtis R. Scharf, Robert C. Richardson, Bernard C. Roell, Jr.; November 8, 2005.
  2. Lubricating compositions with good thermal stability and demulsibility properties. US 6,573,223; June 3, 2003.
  3. Cleansing compositions. US 6,472,355; Russell Philip Elliott, Nicola Jacqueline Phipps, Timothy Woodrow Coffindaffer; October 29, 2002.
  4. Molybdenum-free low volatility lubricating oil composition. US 6,333,298; Malcolm Waddoups, Rolfe J. Hartley, Taisuke Miyoshi; December 25, 2001.
  5. Lubricant oil composition comprising borated cyclic carboxylic acid imide. US 6,184,185; Shigeko Taguchi, Hiroshi Nakanishi, Takanori Kugimiya; February 6, 2001.
  6. Substantially metal free synthetic power transmission fluids having enhanced performance capabilities. US 5,891,786; Sanjay Srinivasan and David W. Smith; April 6, 1999.
  7. Lubricating compositions. US 5,883,057; Bernard C. Roell, Jr., Curtis R. Scharf and Robert C. Richardson; March 16, 1999.
  8. Automatic transmission fluids of improved viscometric properties, US 5,866,519; Raymond F. Watts and Ricardo Alfredo Bloch; February 2, 1999.
  9. Clean performing gear oils. US 5,843,874; Ian Macpherson, Lee D. Saathoff and Marsha J. Lester; December 1, 1998.
  10. Clean gear boron-free gear additive and method for producing same. US 5,763,372; Samuel H. Tersigni, Marsha J. Lester and Lee D. Saathoff; June 9, 1998.
  11. Automatic transmission fluids of improved viscometric properties. US 5,646,099; Raymond F. Watts and Ricardo Alfredo Bloch; July 8, 1997.

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