MARK RANDOLPH MUELLER
Pilots at Castana Bnd, Austin, TX

6262890, Jul 17, 2001

Mar 18, 1999

9/271946

Sudhir Dhawan - Austin TX
Mark Wayne Mueller - Austin TX
Peter Matthew Thomsen - Austin TX
Lucinda Mae Walter - Austin TX

International Business Machines Corporation - Armonk NY

H05K 710

361690

A device for solving the electrical, physical, architectural and thermal challenges associated with designing a computer system is disclosed. A memory controller chipset having two or more chips mounted on opposite sides of a system planar helps balance the thermal profile of the system and achieve the strict spacing requirements of advanced computer processors relative to the memory controller chipset. Although the chips are staggered on opposite sides of the system planar, the adjacent edges of the chips substantially align with one another to minimize their separation.

5262017, Nov 16, 1993

Apr 19, 1993

8/047910

Robert A. Meyer - St. Louis MO
William A. Smith - Houston TX
Mark A. Mueller - Austin TX
Gregory B. Demoll - LaGrange Park IL

Texaco Chemical Company - White Plains NY

B01D 340, C07D30132

203 64

Impure propylene oxide is purified by a distillation process wherein it is (a) extractively distilled in a first column using a C. sub. 2 to C. sub. 6 alkylene glycol extractive distillation agent to form a first overhead fraction comprising propylene oxide, C. sub. 5 -C. sub. 7 hydrocarbons methanol, water and oxygen-containing impurities, (b) wherein the first overhead fraction is separated in a second column into a second overhead fraction comprising most of the pentanes, pentenes and oxygen-containing impurities and a partially purified propylene oxide bottoms fraction comprising propylene oxide, hexenes, hexanes, and only residual quantities of pentenes and pentanes, (c) wherein the partially purified bottoms fraction is extracting distilled in a third column using a C. sub. 7 -C. sub. 10 alkane hydrocarbon extractive distillation agent to provide a further purified bottoms fraction containing substantially all of the propylene oxide, hexenes, hexanes charged to the third distillation column, and (d) the further purified bottoms fraction is extractively distilled in a fourth column using a C. sub. 7 to C. sub. 10 alkane hydrocarbon extractive distillation agent to provide a purified propylene oxide overhead fraction consisting essentially of propylene oxide.

6229708, May 8, 2001

Mar 25, 1999

9/276336

John Saunders Corbin - Austin TX
David Allen Hall - Austin TX
Kenneth Carl Larsen - Georgetown TX
Mark Wayne Mueller - Austin TX
Peter Matthew Thomsen - Austin TX

International Business Machines Corporation - Armonk NY

H05K 700

361728

A mechanism has a subassembly that contains a microprocessor. The mechanism allows the microprocessor to be easily installed through frontal or rear access into a rack drawer and subsequently docked into a receiving assembly. The docking mechanism is multi-axis in that installation of the subassembly occurs along a single axis, but docking of the microprocessor occurs along an axis that is normal to the installation axis. Actuation of the installation mechanism is accomplished with a front-to-rear motion which sequentially provides a power connection to the microprocessor and displaces it in a vertical motion. This vertical motion registers and mates the microprocessor with the assembly. The microprocessor is preloaded in its final latched position to restrain it from shock and vibration events while supporting the assembly in a fixed and stable position.

5436376, Jul 25, 1995

Aug 11, 1994

8/288841

Yu-Hwa E. Sheu - Hsinchu, TW
John R. Sanderson - Leander TX
Mark A. Mueller - Austin TX
William A. Smith - Houston TX

Texaco Chemical Inc. - White Plains NY

C07C 2948, C07C 2980, C07C 3112, C07C 2988

568910

A plural stage process for the production of tertiary butyl alcohol from isobutane wherein isobutane is reacted with oxygen in a first reactor to prepare a primary liquid reaction mixture comprising unreacted isobutane, tertiary butyl alcohol, tertiary butyl hydroperoxide and small amounts of oxygen-containing by-products, distilling the primary reaction product to provide a first lighter isobutane recycle distillation fraction and a first heavier liquid distillation fraction comprising the debutanized mixture of tertiary butyl hydroperoxide with tertiary butyl alcohol, diluting the first heavier liquid distillation fraction with an amount of tertiary butyl alcohol sufficient to provide a feed mixture comprising about 15 to 25 wt. % of tertiary butyl hydroperoxide, about 75 to 85 wt. % of tertiary butyl alcohol and minor amounts of oxygen-containing impurities, wherein the feed mixture is charged to a hydroperoxide decomposition reactor and contacted therein with a solid heterogeneous hydroperoxide decomposition catalyst to convert substantially all of the tertiary butyl hydroperoxide to tertiary butyl alcohol and a minor amount of oxygen-containing by-products to provide a final reaction mixture and wherein tertiary butyl alcohol is recovered from the final reaction mixture.

5453160, Sep 26, 1995

May 31, 1994

8/251151

Michael W. Peters - Austin TX
William K. Culbreth - Beaumont TX
Mark A. Mueller - Austin TX

Texaco Chemical Inc. - White Plains NY

B01D 340, C07D30132

203 64

An extractive distillation agent comprising a mixture of polyoxypropylene glycols is fed to an extractive distillation column used for the distillation of propylene oxide contaminated with water, acetone and methanol to obtain an overhead distillate anhydrous propylene oxide fraction contaminated with reduced quantities of methanol and a heavier bottoms distillation fraction containing the polyoxypropylene glycols, water and acetone and some of the methanol introduced into the distillation column.

4912266, Mar 27, 1990

Sep 8, 1987

7/094174

John R. Sanderson - Leander TX
John F. Knifton - Austin TX
Edward T. Marquis - Austin TX
Mark A. Mueller - Austin TX

Texaco Inc. - White Plains NY

C07C 3112, C07C 29132, C07C 2988, C07C 2704

5689098

In order to prepare a feedstock, isobutane is reacted with oxygen in an oxidation zone to provide an oxidation product comprising a solution of tertiary butyl hydroperoxide in unreacted isobutane. A catalyst may be present to catalyze the reaction of the oxygen with the isobutane if desired. The feedstock is charged to a catalytic decomposition zone wherein the tertiary butyl hydroperoxide is decomposed in the presence of an imidazole-promoted metal phthalocyanine catalyst to provide a decomposition reaction product characterized by a compartively high conversion rate and a compartively high selectively of tertiary butyl hydroperoxide to tertiary butyl alcohol.

5464505, Nov 7, 1995

May 31, 1994

8/251158

Michael W. Peters - Austin TX
William A. Smith - Houston TX
Mark A. Mueller - Austin TX
William K. Culbreth - Beaumont TX

Texaco Chemical Inc. - White Plains NY

B01D 340, C07D30132

203 64

Propylene oxide adducts of oxyethylene glycols are used as extractive distillation agents in an extractive distillation column in the distillation of propylene oxide contaminated with water, acetone and methanol to obtain an overhead propylene oxide distillate fraction contaminated with reduced quantities of water, acetone and methanol, and a heavier bottoms distillation fraction containing substantially all of the extractive distillation agent, and acetone and some of the methanol and water introduced into the distillation column.

5401889, Mar 28, 1995

Nov 12, 1993

8/150916

John R. Sanderson - Leander TX
Mark A. Mueller - Austin TX
Yu-Hwa E. Sheu - Hsinchu, TW

Texaco Chemical Inc. - White Plains NY

C07C 2900, C07C 3112, C07C 2988

5689098

A method for preparing tertiary butyl alcohol wherein a feedstock comprising a solution of tertiary butyl hydroperoxide in a cosolvent mixture of tertiary butyl alcohol with isobutane is charged to a hydroperoxide decomposition reaction zone containing a catalytically effective amount of a hydroperoxide decomposition catalyst and is brought into contact with the catalyst in liquid phase with agitation under hydroperoxide decomposition reaction conditions to convert the tertiary butyl hydroperoxide to decomposition products, principally tertiary butyl alcohol.

5399777, Mar 21, 1995

Mar 21, 1994

8/215148

Mark A. Mueller - Austin TX

Texaco Chemical Inc. - White Plains NY

C07C40902, C07C40904

568569

In the non-catalytic liquid phase oxidation of isobutane, it has been found that the reaction is initiated with 0. 05 wt % to 0. 08 wt % tertiary butyl hydroperoxide.