Steven Wayne Gray

6473419, Oct 29, 2002

Sep 14, 1998

09/152366

Steven D. Gray - Dallas TX
Mark Cheng - Colleyville TX
Janne Parantainen - Helsinki, FI

Nokia Corporation - Espoo

H04J 724

370349, 370252, 455522

State apparatus, and an associated method, controls a packet data service in a radio communication system in which a mobile station is operable. Control architecture is represented by operational states in which the mobile station is caused to be operated includes a control hold power save substate and a virtual traffic substate. Subsequent to a selected period of communication inactivity, the operational state of the mobile station in caused to be transitioned into a control hold power save substate in which a dedicated control channel remains allocated to the mobile station. If packet data is subsequently to be communicated by the mobile station, the channel is readily available to the mobile station to communicate the packet data thereon. When, conversely, subsequent to a period of communication inactivity, operation of the mobile station is caused to be transitioned into the virtual traffic channel substate, a communication channel is released from its allocation to the mobile station.

6486274, Nov 26, 2002

Oct 13, 2000

09/687688

Steven D. Gray - League City TX
Tim J. Coffy - Houston TX

Fina Technology, Inc. - Houston TX

C08F 4614

526119, 526118, 5261242, 5261243, 5261249, 502104, 502110, 502111, 502115, 502126, 502129, 502133

A Ziegler-Natta type catalyst having an improved hydrogen response provides for narrowing of the MWD of resulting polyolefins polymerized using such catalyst, with such catalyst generally made by a) contacting a soluble magnesium dialkoxide compound of the general formula Mg(ORâ) with a halogenating agent capable of exchanging one halogen for one alkoxide to form a reaction product A, where Râ is a hydrocarbyl or substituted hydrocarbyl having from 1 to 20 carbon atoms; b) contacting reaction product A with a first halogenating/titanating agent to form reaction product B; and c) contacting reaction product B with a second halogenating/titanating agent to form a catalyst component; wherein in at least one of steps b) and c), the halogenating/titanating agent is a blend of Ti(OPr) and TiCl. Catalyst components, catalysts, catalyst systems, polyolefin polymers, and methods of forming each are disclosed.

6498785, Dec 24, 2002

Oct 2, 1998

09/165456

Roy Thomas Derryberry - Plano TX
Steven D. Gray - Dallas TX
Zhigang Rong - Fort Worth TX

Nokia Mobile Phones Ltd - Espoo

G08C 1700

370311, 455522

A method and apparatus for power control on a first channel that is shared by multiple mobile stations transmitting to base stations in a telecommunication system. An initial mobile station transmission power level is set on the first channel that is shared in the random access mode. The transmission power level may be determined based on a desired performance level of the first channel. The method and system may be efficiently applied on a channel that carries a transmission in one or more bursts, with each burst including the same or a varying number of frames of varying sizes. The method and apparatus utilizes a second channel that is shared by multiple mobile stations for transmitting the power control signaling from the base stations to the mobile stations.

6614861, Sep 2, 2003

Dec 29, 1999

09/474497

John Terry - Garland TX
Steven D. Gray - Dallas TX

Nokia Networks Oy

H04B 710

375347, 375267

An M-ary signal constellation within an N-dimensional space is defined, preferably such that each of the M symbols reside upon the surface of an N-dimensional sphere and such that a minimum distance between symbols is maximized. N orthogonal functions are used as the bases for representing the N-dimensional symbols for transmission. Orthogonal functions exhibiting orthogonality in frequency, time and/or space are also described for this purpose. Furthermore, conventional QAM symbol encoding may be used to represent the N-dimensional symbols, thereby facilitating the use of conventional modulation techniques. In this manner, higher dimensional modulation schemes may be realized.

6693058, Feb 17, 2004

Oct 13, 2000

09/687560

Steven D. Gray - Houston TX
Tim J. Coffy - Houston TX

Fina Technology, Inc. - Houston TX

B01J 3100

502103

A new synthesis of a Ziegler-Natta catalyst uses a multi-step preparation that includes treating a magnesium dialkoxide compound with halogenating/titanating agents, and an organoaluminum preactivating agent. The catalyst may be used in the polymerization of olefins, particularly ethylene, to control the molecular weight distribution and the fluff morphology of the resulting polyolefins.

6734134, May 11, 2004

Oct 13, 2000

09/687378

Steven D. Gray - League City TX
Tim J. Coffy - Houston TX

Fina Technology, Inc. - Houston TX

B01J 3100

502132, 502133, 502107, 502110, 502113, 502115, 502116, 502125, 502126, 502134

A new synthesis of a Ziegler-Natta catalyst uses a multi-step preparation that includes treating a magnesium dialkoxide compound with two halogenating/titanating agents, the second stronger than the first, an organoaluminum preactivating agent, and a heat treatment. The catalyst may be used in the polymerization of olefins, particularly ethylene, to control the molecular weight distribution of the resulting polyolefins.

6790804, Sep 14, 2004

Jun 27, 2002

10/186262

Steven D. Gray - League City TX
Tim J. Coffy - Houston TX
Edwar S. Shamshoum - Gibsonia PA

Fina Technology, Inc. - Houston TX

B01J 3100

502103, 502104, 502115, 502172, 525 21

A process of forming a polyolefin catalyst component includes contacting a metal compound of the formula MR with a diketone to form a metal bis(diketonate) having the formula M(OCRCRâCRO) , wherein M is a Group IIA or Group VIIB metal, and wherein R and Râ are each hydrocarbyls or substituted hydrocarbyls having from 1 to 20 carbons atoms. Catalyst components, catalysts, polyolefin polymers, catalysts systems, and methods of preparing same are disclosed.

6846859, Jan 25, 2005

May 31, 2002

10/160462

Tim J. Coffy - Houston TX, US
Steven D. Gray - League City TX, US
Gerhard K. Guenther - Seabrook TX, US

Fina Technology, Inc. - Houston TX

C08L 552

524128, 524151, 524121, 524349, 524147, 524585

The present invention includes a polyolefin composition having reduced coloration with aging. The polyolefin composition comprises at least one polyolefin, an effective amount of a primary phenolic antioxidant to promote long term thermal stability of the polymer composition, and an effective amount of a phosphite processing stabilizer to promote thermal stability of the polymer composition during melt processing. The polymer composition further comprises an effective amount of a sacrificial phosphite antioxidant to reduce the yellowness index of the polymer composition. The sacrificial phosphite antioxidant and the phosphite processing stabilizer are not the same compound.