1
Jeremy D Peter Hoblyn, James M Valentine, Barry N Sprague, W Robert Epperly: Methods for reducing harmful emissions from a diesel engine. Clean Diesel Technologies, St Onge Steward Johnston & Reens, December 21, 1999: US06003303 (57 worldwide citation)

Emissions of pollutants from diesel engines are reduced by a combination of mechanical devices and fuel additives. In one series of embodiments, diesel emissions of NO.sub.x and particulates are reduced, simultaneously with gaseous hydrocarbons and carbon monoxide, by the combined use of exhaust gas ...


2
W Robert Epperly, Barry N Sprague: Method for catalyzing fuel for powering internal combustion engines. Platinum Plus, St Onge Steward Johnston & Reems, July 23, 1991: US05034020 (48 worldwide citation)

The invention presented is a method for catalyzing fuel for powering internal combustion engines. The method comprises admixing with fuel an additive composition comprising at least one fuel-soluble platinum group metal compound in an amount effective to supply from 0.01 to 1.0 parts per million of ...


3
Leonard Dubin, W Robert Epperly, Barry Normand Sprague, Thure von Harpe: Hardness suppression in urea solutions. Nalco Fuel Tech, St Onge Steward Johnston & Reens, July 8, 1997: US05645756 (41 worldwide citation)

The tendency of aqueous solutions of urea and other NH-containing compositions to force instability of hardness factors has been found to be detrimental to processes and apparatus employing them. The reliability of these processes and apparatus is improved by the inclusion of hardness-suppressing co ...


4
Jeremy D Peter Hoblyn, James M Valentine, W Robert Epperly, Barry N Sprague: Method for reducing pollution emissions from a diesel engine. Platinum Plus, St Onge Steward Johnston & Reens, November 30, 1993: US05266083 (35 worldwide citation)

The invention presented relates to a method for reducing the emission of nitrogen oxides from a diesel engine without significant loss of fuel efficiency and without significant increases in carbon monoxide and hydrocarbon emissions. The method involves preparing a diesel engine such that the inject ...


5
W Robert Epperly, Barry N Sprague, Danny T Kelso, Wayne E Bowers: Method for reducing emissions from or increasing the utilizable energy of fuel for powering internal combustion engines. Platinum Plus, St Onge Steward Johnston & Reens, May 12, 1998: US05749928 (19 worldwide citation)

The invention presented involves a method for reducing emissions from or increasing the utilizable energy of fuel for powering diesel, gasoline or gasohol internal combustion engines, the method comprising admixing with the fuel an additive which comprises a fuel-soluble, nonionic, organometallic pl ...


6
W Robert Epperly, Barry N Sprague, Danny T Kelso, Wayne E Bowers: Method for regenerating, replacing or treating the catalyst in a hydroprocessing reactor. Platinum Plus, St Onge Stewart Johnston & Reens, June 1, 1993: US05215652 (15 worldwide citation)

The invention presented involves a method for regenerating, replacing or treating the catalyst in a hydroprocessing reactor, the method comprising admixing with the feedstock, recycle stream or hydrogen stream of the reactor an additive which comprises a nonionic, organometallic platinum group metal ...


7
W Robert Epperly, Barry N Sprague: Hybrid process for nitrogen oxides reduction. Fuel Tech, St Onge Steward Johnston & Reens, September 10, 1991: US05047219 (9 worldwide citation)

The invention presented is a process for reducing the nitrogen oxides concentration in the effluent from the combustion of a carbonaceous fuel. The inventive process comprises introducing into the effluent an oxygenated treatment agent which includes an oxygenated hydrocarbon under conditions effect ...


8
Leonard Dubin, W Robert Epperly, Barry N Sprague, Thure von Harpe: Hardness suppression in urea solutions. Nalco Fuel Tech, St Onge Steward Johnston & Reens, August 15, 1995: US05441713 (8 worldwide citation)

The tendency of aqueous solutions of urea and other NH-containing compositions to force instability of hardness factors has been found to be detrimental to processes and apparatus employing them. The reliability of these processes and apparatus is improved by the inclusion of hardness-suppressing co ...