Stephen R Cameron

US Patent:

59393645, Aug 17, 1999

Filed:

Dec 12, 1997

Appl. No.:

8/990054

Inventors:

Richard Samuel Polizzotti - Milford NJ
Elisavet P. Vrahopoulou - Chatham NJ
Stephen D. Cameron - Milford NJ
Charles Frederick Pictroski - Glen Gardner NJ

Assignee:

Exxon Research & Engineering Co. - Florham NJ

International Classification:

C10M13518
C10M13710

US Classification:

508363

Abstract:

Multifunctional molybdenum compounds, which are the reactive product of molybdenum dithiocarbamates and (non-metal containing) dihydrocarbyl dithiophosphoric acids, and the oils that contain them are new compositions which are useful as lubricant additives. They impart to the lubricant formulations to which they are added low friction and excellent friction retention properties.

US Patent:

20150057986, Feb 26, 2015

Filed:

Jul 29, 2014

Appl. No.:

14/446110

Inventors:

Stephen D. Cameron - Milford NJ, US
Marsha W. French - Estes Park CO, US

International Classification:

G01V 99/00
G06N 7/00

US Classification:

703 2

Abstract:

A method, including: obtaining a grain size for amorphous silica associated with a basin and a grain size for quartz associated with the basin; obtaining kinetics of silica dissolution corresponding to the basin and quartz precipitation corresponding to the basin; determining, with a processor, a concentration of amorphous silica in water based on the grain size for amorphous silica, the grain size for quartz, and the kinetics of silica dissolution and quartz precipitation; comparing, with the processor, the concentration of amorphous silica in water to an amorphous silica saturation condition; and determining, with the processor, a presence of microquartz based on a result of the comparing.