Robert A Yates

US Patent:

61184047, Sep 12, 2000

Filed:

Jan 21, 1998

Appl. No.:

9/010324

Inventors:

Robert P. Fernekes - Wood Dale IL
Vijaya Israni - Hoffman Estates IL
Gregory M. Nyczak - Westmont IL
Robert Yates - Glen Ellyn IL

Assignee:

Navigation Technologies Corporation - Rosemont IL

International Classification:

H04B 7185
G01S 502

US Classification:

34235713

Abstract:

A system and method for storing and using data representing crossings of geographic features, and an associated product having the data embodied thereon, for use with a computer based navigation system, is disclosed. A computer-readable medium has computer-readable data embodied thereon that represents geographic features in a geographic region. The computer-readable data includes a plurality of data entities of a first type each of which represents a respective one of a plurality of linearly extending geographic features and a plurality of data entities of a second type each of which represents a respective crossing at which one of the linearly extending geographic features represented by one of the plurality of data entities of the first type crosses over another of the linearly extending geographic features represented by another of the plurality of data entities of the first type at a higher altitude.

US Patent:

40227375, May 10, 1977

Filed:

Aug 20, 1971

Appl. No.:

5/173641

Inventors:

Kazys Sekmakas - Chicago IL
Robert O. Yates - Arlington Heights IL

Assignee:

DeSoto, Inc. - Des Plaines IL

International Classification:

C08L 6120

US Classification:

260 294UA

Abstract:

Finely divided particles of normally solid addition polymer, such as particles of polyvinylidene fluoride having a particle size of from about 0. 1 to about 60 microns in average diameter, and which are not stably dispersible in water in the absence of extraneous surface active agent, are stably dispersed by means of a carboxy-functional copolymer containing at least 30% by weight of copolymerized monomer providing terminal hydrocarbon groups having at least 8 carbon atoms, the copolymer being dissolved in the aqueous medium by salt formation with a base.