Delwin S Jackson

US Patent:

6797278, Sep 28, 2004

Filed:

Dec 21, 2001

Appl. No.:

10/036652

Inventors:

Delwin Jackson - Duncan SC
Leland G. Close - Spartanburg SC

Assignee:

Milliken Company - Spartanburg SC

International Classification:

A01N 2508

US Classification:

424409, 424 768, 424 7809, 424405, 424411, 424421, 424618, 514495

Abstract:

Broadly defined sol-gel films for the coating of solid substrates, wherein such sol-gel films provide effective and durable antimicrobial properties. The utilization of such films permits relatively low-temperature production of antimicrobial substrates, such as ceramics, metals (e. g. , stainless steel, brass, and the like), plastics (e. g. , polyimides, polyamides, polyacrylics, and the like), glass (e. g. , borosilicates, and the like), as compared with typical glazes for ceramics and the like. The inventive films comprise, as the primary antimicrobial active ingredients, certain metal-containing inorganic or organic antimicrobial compounds, such as, preferably, metal-containing ion-exchange, oxide, glass, sulfadiazine, and/or zeolite compounds (most preferably, including silver therein as the metal component). Preferably, also, the particular solid substrate to which such films are applied should exhibit substantially high melting and/or heat distortion temperatures to permit high temperature curing of the films to the solid substrate surface (in the range of 100-800Â C. , for example).

US Patent:

8545015, Oct 1, 2013

Filed:

Nov 15, 2011

Appl. No.:

13/296867

Inventors:

Anil Kumar - Murrysville PA, US
Rachael L. Yoest - Gibsonia PA, US
Chenguang Li - Monroeville PA, US
Delwin S. Jackson - Clearwater FL, US
Henry Nguyen - Largo FL, US

Assignee:

Transitions Optical, Inc. - Pinellas Park FL

International Classification:

G02C 3/00
G02B 5/30
G02B 5/23

US Classification:

35115961, 35948701, 35949201

Abstract:

Provided are photochromic articles including a substrate, a primer layer that includes a first photochromic compound, and a photochromic-dichroic layer over the primer layer that includes a photochromic-dichroic compound. The first photochromic compound and the photochromic-dichroic compound each are selected such that the photochromic-dichroic compound has an unactivated state terminal minimum absorbance wavelength that is less than or equal to the unactivated state terminal minimum absorbance of the underlying first photochromic compound. The present invention also relates to such photochromic articles that further include a topcoat layer over the photochromic-dichroic layer, the topcoat layer including a second photochromic compound that has an unactivated state terminal minimum absorbance wavelength that is less than the unactivated state terminal minimum absorbance wavelength of the underlying photochromic-dichroic compound.

US Patent:

8582192, Nov 12, 2013

Filed:

Jun 6, 2011

Appl. No.:

13/153748

Inventors:

Anil Kumar - Murrysville PA, US
Rachael L. Yoest - Gibsonia PA, US
Chenguang Li - Monroeville PA, US
Delwin S. Jackson - Clearwater FL, US
Henry Nguyen - Largo FL, US

Assignee:

Transitions Optical, Inc. - Pinellas Park FL

International Classification:

G02F 1/03

US Classification:

359241

Abstract:

Provided are photochromic articles that include a substrate, a primer layer that includes a first photochromic compound, and a photochromic-dichroic layer over the primer layer that includes a photochromic-dichroic compound. The first photochromic compound and the photochromic-dichroic compound each are selected such that the photochromic-dichroic compound has an absorbance of less than or equal to 0. 1 at the wavelength of peak absorbance of the underlying first photochromic compound. The present invention also relates to such photochromic articles that further include a topcoat layer over the photochromic-dichroic layer. The topcoat layer can include a second photochromic compound that has an absorbance of less than 0. 1 at the wavelength of peak absorbance of the underlying photochromic-dichroic compound. The photochromic articles provide, for example, a combination of linear polarizing properties, and reduced percent transmittance when in a colored or darkened state, such as when exposed to actinic light.

US Patent:

20030118733, Jun 26, 2003

Filed:

Dec 21, 2001

Appl. No.:

10/027433

Inventors:

Delwin Jackson - Duncan SC, US
Leland Close - Spartanburg SC, US

International Classification:

B05D003/02

US Classification:

427/372200

Abstract:

Broadly defined sol-gel films for the coating of solid substrates, wherein such sol-gel films provide effective and durable antimicrobial properties, are provided. The utilization of such films permits relatively low-temperature production of antimicrobial substrates, such as ceramics, metals (e.g., stainless steel, brass, and the like), plastics (e.g., polyimides), glass (e.g., borosilicates, and the like), as compared with typical glazes for ceramics and the like. The inventive films comprise, as the primary antimicrobial active ingredients, certain inorganic antimicrobial compounds, such as, preferably, metal-containing ion-exchange, oxide, and/or zeolite compounds (most preferably, including silver therein as the metal component). Preferably, also, the particular solid substrate to which such films are applied should exhibit substantially high melting and/or heat distortion temperatures to permit high temperature curing of the films to the solid substrate surface (in the range of 300-800 C., for example). If the solid substrate melts or distorts, the antimicrobial activity of the ultimate composite is drastically reduced. End uses for such film-coated articles include bathroom fixtures, furniture, and any other surface that exhibits the high melt and/or heat distortion temperatures noted above and requires antimicrobial characteristics. The specific method of producing such films is also encompassed within this invention.

US Patent:

20140078583, Mar 20, 2014

Filed:

Sep 14, 2012

Appl. No.:

13/616591

Inventors:

Rachel L. DeMeio - Gibsonia PA, US
Anil Kumar - Murrysville PA, US
John S. Ligas - Palm Harbor FL, US
Truman Wilt - Clinton PA, US
Delwin S. Jackson - Clearwater FL, US
Henry Nguyen - Largo FL, US

Assignee:

Transitions Optical, Inc. - Pinellas Park FL

International Classification:

G02B 5/30

US Classification:

35948702, 35948701

Abstract:

Photochromic-dichroic articles are provided, which include a substrate having a first surface, a fixed-polarized layer over the first surface of the substrate, and a photochromic-dichroic layer over the first surface of the substrate. The fixed-polarized layer optionally includes a fixed-colorant and has a first polarization axis. The photochromic-dichroic layer includes a photochromic-dichroic compound that is laterally aligned within the photochromic-dichroic layer, and which defines a second polarization axis. The first polarization axis and the second polarization axis are oriented relative to each other at an angle of greater than 0 and less than or equal to 90. The photochromic-dichroic articles can provide, for example, increased optical density and/or increased kinetics when exposed to a given amount of actinic radiation.

US Patent:

59523077, Sep 14, 1999

Filed:

Aug 14, 1997

Appl. No.:

8/907840

Inventors:

James C. Powers - Atlanta GA
Delwin S. Jackson - Bear DE
Liming Ni - Little Canada MN

Assignee:

Georgia Tech Research Corp. - Atlanta GA

International Classification:

A61K 3805

US Classification:

514 19

Abstract:

Peptidyl derivatives of diesters of. alpha. -aminoalkylphosphonic acids with basic substituents, their use in inhibiting serine proteases with trypsin-like specificity and their roles as anti-inflammatory agents, anticoagulants, and anti-tumor agents.

US Patent:

20200103571, Apr 2, 2020

Filed:

Dec 30, 2016

Appl. No.:

16/471887

Inventors:

- Tuam, IE
Delwin S. Jackson - Clearwater FL, US
Anil Kumar - Murrysville PA, US

International Classification:

G02B 5/30
G02B 27/28

Abstract:

The present invention relates to a polarizing article that includes in order: (a) a substrate; (b) a first orientation facility having a first orientation direction; (c) a first polarized layer, that includes a first dichroic fixed-tint dye and a first liquid-crystal material, and which has a first polarization axis; (d) a second orientation facility having a second orientation direction; and (e) a second polarized layer that includes a second dichroic fixed-tint dye and a second liquid-crystal material, and which has a second polarization axis. The first and second polarization axes are oriented relative to each other at an angle of greater than 0 and less than or equal to 90. The electromagnetic absorption spectra of the first and second dichroic fixed-tint dyes are different from each other.

US Patent:

20180299599, Oct 18, 2018

Filed:

Oct 30, 2015

Appl. No.:

15/767366

Inventors:

- Pinellas Park FL, US
David John Park - Tuam, IE
Brian Smyth - Tuam, IE
Delwin S. Jackson - Clearwater FL, US
Henry Nguyen - Largo FL, US
John S. Ligas - Palm Harbor FL, US
Linda K. Anderson - Allison Park PA, US

International Classification:

G02B 5/30
B29D 11/00
G02C 7/02
G02C 7/10

Abstract:

An optical article that includes an optical element and an anisotropic coating layer formed over at least a portion of the optical element. The anisotropic coating layer can include a first light-influencing zone comprising at least one first anisotropic material and a second light-influencing zone comprising at least one second anisotropic material. The at least one of the first light-influencing zone and the second light-influencing zone further include at least one dichroic material and/or at least one photochromic-dichroic material such that the first light-influencing zone and the second light-influencing zone exhibit a different color property, a different photochromic-dichroic reversible change, a different amount of polarization, or a combination thereof.