Robert J Walters

US Patent:

6436525, Aug 20, 2002

Filed:

Dec 11, 1998

Appl. No.:

09/209731

Inventors:

Cletus N. Welch - Murrysville PA
Robert W. Walters - Pittsburgh PA
Shanti Swarup - Allison Park PA

Assignee:

PPG Industries Ohio, Inc. - Cleveland OH

International Classification:

B32B 904

US Classification:

428332, 428426, 428457, 4285371, 4285375, 4284111, 528195, 528198, 252582, 252586

Abstract:

Described are articles having a polyanhydride photochromic coating. The coatings exhibit a Fischer microhardness of from 50 to 130 Newtons per mm and desirable photochromic properties, i. e. , the formation of darker activated colors and faster rates of photochromic activation and fade when irradiated with ultraviolet light. Also described are polyanhydride photochromic articles.

US Patent:

6555028, Apr 29, 2003

Filed:

Apr 6, 2001

Appl. No.:

09/828260

Inventors:

Robert W. Walters - Export PA
Barry Van Gemert - Murrysville PA

Assignee:

Transitions Optical, Inc. - Pinellas Park FL

International Classification:

G02B 523

US Classification:

252586, 549389, 549382, 549331, 549362, 549 58, 549 60, 546256, 5462804, 5462811, 5462827, 5462774, 5462824, 548454, 524110, 525279, 525403, 351163

Abstract:

Described are polymeric matrix compatibilized naphthopyran compounds, examples of which are certain 2H-naphtho[1,2-b]pyrans, 3H-naphtho[2,1-b]pyrans and indeno[2,1-f]naphtho[1,2-b]pyrans each having at least one substituent containing terminal and/or pendant groups selected from hydroxyl, carboxyl, sulfo, sulfono, (meth)acryloxy, 2-(methacryloxy)ethylcarbamyl, epoxy or a mixture thereof. Specific substituents are also present on the naphtho, indeno and/or pyrano portions of the compounds. These compounds may be represented by the following graphic formulae: Also described are various substrates that contain or that are coated with such compounds. Optically clear articles such as contact lenses or other plastic transparencies that incorporate the novel naphthopyran compounds or combinations thereof with complementary photochromic compounds, are also described.

US Patent:

6858327, Feb 22, 2005

Filed:

Nov 8, 2002

Appl. No.:

10/290656

Inventors:

Jui-Yi Tsai - Monroeville PA, US
Robert W. Walters - Export PA, US
Michael Barone - Pittsburgh PA, US

Assignee:

Universal Display Corporation - Ewing NJ

International Classification:

H05B033/14
C09K011/06
C07D417/14

US Classification:

428690, 428917, 313504, 25230116, 546 2, 548101

Abstract:

Emissive materials are provided having the following structures: Devices incorporating the emissive materials are also provided.

US Patent:

6916554, Jul 12, 2005

Filed:

Nov 6, 2002

Appl. No.:

10/288785

Inventors:

Bin Ma - Monroeville PA, US
Robert W. Walters - Export PA, US
David B. Knowles - Apollo PA, US
Raymond Kwong - Plainsboro NJ, US
Peter I. Djurovich - Long Beach CA, US
Mark E. Thompson - Anaheim CA, US

Assignee:

The University of Southern California - Los Angeles CA
Universal Display Corporation - Ewing NJ

International Classification:

H05B033/14
C09K011/06
C07D211/00

US Classification:

428690, 428917, 313504, 546 4

Abstract:

An organic light emitting device is provided. The device has an anode, a cathode, and an emissive layer disposed between the anode and the cathode. The emissive layer further comprises an emissive material having the structure: M may be a metal having an atomic weight greater than 40. Rmay be a substituent having a Hammett value less than about −0. 17, between about −0. 15 and 0. 05, or greater than about 0. 07. Rmay be H or any substituent. A may be a 5 or 6 member heteroaryl ring system. “m” may be at least 1. “n” may be at least zero. (X-Y) may be an ancillary ligand. The emissive material itself is also provided. The emissive material may have improved stability, and may provide a saturated blue emission.

US Patent:

7279704, Oct 9, 2007

Filed:

Jan 10, 2005

Appl. No.:

11/032950

Inventors:

Robert Walters - Export PA, US
Jui-Yi Tsai - Monroeville PA, US
Peter B. MacKenzie - Murrysville PA, US
Mark E. Thompson - Anaheim Hills CA, US

Assignee:

The University of Southern California - Los Angeles CA
Universal Display Corporation - Ewing NJ

International Classification:

H01L 29/08
H01L 35/24
H01L 51/00

US Classification:

257 40, 257E51022

Abstract:

The present invention relates to organic light emitting devices (OLEDs), and more specifically to phosphorescent organic materials used in such devices. More specifically, the present invention relates to emissive phosphorescent material which comprise at least one tridentate ligand bound to a metal center, wherein at least one of the bonds to the tridentate ligand is a carbon-metal bond.

US Patent:

7332232, Feb 19, 2008

Filed:

Jun 3, 2004

Appl. No.:

10/859796

Inventors:

Bin Ma - Monroeville PA, US
Robert Walters - Export PA, US
Raymond Kwong - Plainsboro NJ, US
Jason Brooks - Lambertville NJ, US

Assignee:

Universal Display Corporation - Ewing NJ

International Classification:

H01L 51/54
C09K 11/06

US Classification:

428690, 428917, 313504, 313506, 257E51044, 546 4

Abstract:

An organic light emitting device is provided. The device has an anode, a cathode, and an organic layer disposed between the anode and the cathode. The organic layer comprises an emissive material having a transition metal and two or three bidentate ligands, which may be photoactive ligands. The bidentate photoactive ligands may be bound to the transition metal through a carbon-metal bond and a nitrogen-metal bond to form a cyclometallated ring. The organic layer may have the formula LX-(L)M, wherein X is a linking group that links two or more ligand L and M is a metal.

US Patent:

7368072, May 6, 2008

Filed:

Dec 10, 2002

Appl. No.:

10/315656

Inventors:

Barry Van Gemert - Murrysville PA, US
Anil Kumar - Pittsburgh PA, US
Frank P. Mallak - Export PA, US
Robert W. Walters - Export PA, US

Assignee:

PPG Industries Ohio, Inc. - Cleveland OH

International Classification:

B29D 11/00
G02B 3/00
G02B 1/00

US Classification:

264 17, 264 132, 264 18, 264 19

Abstract:

Described are contact lenses having photochromic materials within the central or pupillary area of the lens and methods for manufacturing such lenses. In one method, a photochromic amount of at least one photochromic material is added to the pupillary region of a casting mold containing a polymerizable monomer that can be at least partially cured before and/or after the addition. Another method involves providing an amount of polymerizable photochromic monomer for the pupillary region and an amount of polymerizable non-photochromic monomer for the remainder of the contact lens in a casting mold. The photochromic and non-photochromic monomers can differ by their degree of polymerization, viscosity and/or density.

US Patent:

7429426, Sep 30, 2008

Filed:

Dec 3, 2004

Appl. No.:

11/002188

Inventors:

Cory S. Brown - Monroeville PA, US
David B. Knowles - Apollo PA, US
Raymond Kwong - Plainsboro NJ, US
Robert Walters - Export PA, US
Peter I. Djurovich - Long Beach CA, US
Mark E. Thompson - Anaheim CA, US
Bin Ma - Monroeville PA, US

Assignee:

The University of Southern California - Los Angeles CA
Universal Display Corporation - Ewing NJ

International Classification:

H01L 51/54
C09K 11/06

US Classification:

428690, 428917, 313504, 313506, 257E51044, 546 4, 546 10

Abstract:

An organic light emitting device is provided. The device has an anode, a cathode, and an emissive layer disposed between the anode and the cathode. The emissive layer further comprising an emissive material having the structure:.

Address:

2226 Beachcomber Trl, Atlantic Beach, FL 32233

Phone:

9042471504

VIN:

2HNYD2H6XCH537805

Make:

ACURA

Model:

MDX

Year:

2012

Address:

5041 Carolyn Dr, Pittsburgh, PA 15236

Phone:

4128607543

VIN:

1VWBP7A37CC052697

Make:

VOLKSWAGEN

Model:

PASSAT

Year:

2012