Paul P Jacobson

US Patent:

7491838, Feb 17, 2009

Filed:

Aug 26, 2003

Appl. No.:

10/648572

Inventors:

Mark Clark Cesa - South Euclid OH, US
Paul Alan Jacobson - Victoria TX, US
Richard Lee Wappelhorst - Port Lavaca TX, US

Assignee:

INEOS USA LLC - Lisle IL

International Classification:

C07C 253/34

US Classification:

558463

Abstract:

A process of producing HPLC grade acetonitrile (UV cutoff

US Patent:

57874158, Jul 28, 1998

Filed:

Oct 30, 1996

Appl. No.:

8/739531

Inventors:

Paul Jacobson - Brunswick OH
Michael Tefft - North Royalton OH

Assignee:

International Business Machines Corporation - Armonk NY

International Classification:

G06F 1730

US Classification:

707 2

Abstract:

Processing overhead for maintenance of integrity of one or more de-normalized relational databases including an entity-attribute-relationship architecture during updates thereof in a decision support system is expedited by transfer and merger of data by use of standard utilities under control of control files corresponding to the database architecture. Complexity of maintenance of the database as the database architecture is changed is minimized by alteration of the control files but not the utilities or the complex protocols of previously known systems. By thus reducing processing overhead when updating and/or refreshing of the database(s) is to be done, data may be efficiently maintained with improved currency while enhancing availability of the system to the user. Efficiency of the decision support system is improved since de-normalization may be accommodated by the modification of control files which are preferably in the form of SQL statements and thus the database architecture can be readily optimized at will or adaptively for high search efficiency.

US Patent:

63265087, Dec 4, 2001

Filed:

Sep 5, 2000

Appl. No.:

9/654631

Inventors:

Sanjay Purushottam Godbole - Solon OH
Richard Lee Wappelhorst - Port Lavaca TX
Paul Alan Jacobson - Brecksville OH

Assignee:

The Standard Oil Company - Chicago IL

International Classification:

C07C25500

US Classification:

558441

Abstract:

The method of the present invention comprises feeding crude acetonitrile containing acrylonitrile as an impurity and water into the upper portion of a distillation column, distilling the crude acetonitrile in the presence of the water for a time sufficient to allow substantially all of the acrylonitrile impurity to be vaporized in the presence of the water, removing substantially all of the acrylonitrile in an overhead stream exiting from the distillation column and recovering the crude acetonitrile substantially free of acrylonitrile impurity from the lower portion of the distillation column. In particular, the method can be utilized to produce HPLC grade acetonitrile (UV cutoff