1
Irwin Ginsburgh, Christos G Papadopoulos: Method for determining the position and inclination of a flame front during in situ combustion of an oil shale retort. Standard Oil Company, Robert B Stevenson, Arthur McIlroy, January 22, 1980: US04184548 (169 worldwide citation)

A method for locating the position of a flame front within a rubbled oil shale retort of known dimension and location during an in situ combustion of the retort involving initiating a seismic signal at a selected position on the earth's surface relative to the retort, detecting the reflected seismic ...


2
Charles A Powers, George B Holman, Robert C Smith: Process and composition for cementing casing in a well. Standard Oil Company, Robert B Stevenson, Arthur McIlroy, July 19, 1977: US04036301 (105 worldwide citation)

A process for reducing the waiting-on-cement (WOC) time associated with the cementing of a casing string in an oil well involving the specific improvement of pumping into the well a highly retarded cement slurry containing a dispersed encapsulated accelerator, such as calcium chloride or anhydrous s ...


3
Maria Spinu: Alternating (ABA)N polylactide block copolymers. E I Du Pont de Nemours and Company, Robert B Stevenson, April 13, 1993: US05202413 (93 worldwide citation)

Polymers of the general formula R--(A-B-A-I)-.sub.x A-B-A-R and their preparation are disclosed. In the general formula, -A- is a polyhydroxy acid residue preferably a polymer of either 98 to 100% L-lactide or 98 to 100% D-lactide having a molecular weight of 500 to 40,000 and preferably 2,000 to 20 ...


4
Duane B Anderson, Carl D Edwards: Shale stabilizing drilling fluid. Standard Oil Company, Robert B Stevenson, Arthur McIlroy, March 6, 1979: US04142595 (68 worldwide citation)

A process and composition are described for use in drilling shale and especially in drilling the troublesome types of shale which heretofore have been impossible to drill effectively. The aqueous drilling fluid of this invention so effectively stabilizes the shale that additions to maintain the spec ...


5
Maria Spinu, Thomas M Ford: Degradable foam materials. E I Du Pont de Nemours and Company, Robert B Stevenson, May 11, 1993: US05210108 (60 worldwide citation)

Environmentally benign closed cell compositions made by foaming star-shaped polymers with a plurality of poly(hydroxy acid) chains attached to a central polyfunctional compound having a plurality of hydroxyl and/or amino groups.


6
Carl E Martin: Double containment pipe fittings and apparatus to adhesively install the same. Fibercast Company, Robert B Stevenson, December 12, 1989: US04886305 (52 worldwide citation)

A double containment restraint pipe fitting of fiber reinforced plastic and centrifugally cast pipe comprising an outer containment housing and a coaxially positioned inner carrier housing having coaxially positioned segment of containment pipe and carrier pipe adhesively bonded at each opening of t ...


7
Russell L McGalliard, Gary W Larrabee: Method for cryogenic separation of carbon dioxide from hydrocarbons. Standard Oil Company, Robert B Stevenson, Arthur McIlroy, January 29, 1980: US04185978 (52 worldwide citation)

The operation of a demethanizer being used to cryogenically separate high carbon dioxide content hydrocarbon feed into liquid ethane essentially free of both methane and carbon dioxide with simultaneous production of overhead gas comprising methane and carbon dioxide without carbon dioxide icing to ...


8
Richard A Stoltz, Albert C Metrailer: Method for determining the position and inclination of a flame front during in situ combustion of a rubbled oil shale retort. Standard Oil Company, Robert B Stevenson, Arthur McIlroy, September 11, 1979: US04167213 (45 worldwide citation)

A passive method for locating the position and inclination of a flame front, within an oil-shale retort of known dimensions and location during an in situ combustion of the retort involving detecting the sound generated by the flame front, by two matched detectors separated by a fixed known distance ...


9
Frank E Filisko, William E Armstrong: Electric field dependent fluids. Board of Regents of the University of Michigan, Robert B Stevenson, May 17, 1988: US04744914 (44 worldwide citation)

An improved electric field dependent fluid and method of preparing the same for use at temperatures in excess of 100.degree. C. (typically 120.degree. C.) without releasing water comprising: a nonconductive liquid phase; and a dispersed particulate crystalline zeolite phase (e.g., M.sub.(x/n) [AlO.s ...


10
Maria Spinu: Star-shaped hydroxyacid polymers. E I Du Pont de Nemours and Company, Robert B Stevenson, July 6, 1993: US05225521 (39 worldwide citation)

Star-shaped poly (hydroxyacid) chains and the process for preparing them are disclosed. The star shaped polymers have the residue of a central polyfunctional compound having at least 5 hydroxyl or amino groups and 5 to 100 carbon atoms with polymeric arms attached to the functional groups. The polym ...



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