Jun Xing Zheng, 53Fort Lauderdale, FL

6636544, Oct 21, 2003

Sep 11, 2001

09/951299

James N. Baillargeon - Springfield NJ
Wen-Yen Hwang - Sugar Land TX
Klaus Alexander Anselm - Sugar Land TX
Jun Zheng - Houston TX

Applied Optoelectronics, Inc. - Sugar Land TX

H01S 5026

372 50, 372 97

A device is provided, the device comprising a first vertical cavity surface-emitting laser (VCSEL) of a monolithic vertical cavity surface-emitting laser (VCSEL) array, the first vertical cavity surface-emitting laser (VCSEL) being tunable to a first plurality of wavelengths. The device also comprises a second vertical cavity surface-emitting laser (VCSEL) of the monolithic vertical cavity surface-emitting laser (VCSEL) array, the second vertical cavity surface-emitting laser (VCSEL) being tunable to a second plurality of wavelengths, wherein at least one wavelength is in both the first plurality of wavelengths and the second plurality of wavelengths.

2013026, Oct 3, 2013

Oct 19, 2011

13/879746

Osama M. Musa - Kinnelon NJ, US
Jui-Chang Chuang - Wayne NJ, US
Yi Zhang - Nutley NJ, US
Jun Zheng - Morris Plains NJ, US

ISP Investments Inc. - Wilmington DE

C08F 226/06

526264

Polymers are provided that offer gas hydrate inhibition, salt tolerance, and high cloud point. The polymers are polymerized from at least (A) 50 mole percent or more of a monomer selected from the group consisting of: N-vinyl-2-caprolactam, one of its analogues, and combinations thereof, (B) an alkenyl sulfonic acid monomer, salt thereof, or combinations thereof, and (C) an TV-vinyl amide, a (meth)acrylamide or one of its analogues, or combinations thereof. In one embodiment, the (A) monomer is N-vinyl-2-caprolactam, the (B) monomer is 2-acrylamido-2-methylpropane sulfonic acid or salt thereof, and the (C) monomer is N-vinyl-2-pyrrolidone, acrylamide, methacrylamide, or combinations thereof.

2017033, Nov 23, 2017

Apr 3, 2017

15/478124

- Wilmington DE, US
Jun ZHENG - Morris Plains NJ, US
David FARRAR - Idle Bradford, GB
Osama M. MUSA - Bedminster NJ, US

C09K 8/12
C04B 24/16
E21B 33/13
E21B 7/00
C09K 8/88
C09K 8/68
C09K 8/588
C09K 8/487
C09K 8/24
C08F 220/58
C08F 220/56
C08F 220/18
E21B 43/16
C04B 24/26
E21B 43/26
C04B 103/00

A salt-tolerant, thermally-stable rheology modifier and, in particular, a rheology modifier for applications in oilfield well-bore fluids. In accordance with one aspect, the rheology modifier comprises a terpolymer of acrylamide, 2-acrylamido-2-methyl-propanesulfonic acid (AMPS) and a long-chain alkyl acrylate wherein the terpolymer is prepared by dispersion polymerization.

2015036, Dec 24, 2015

Feb 18, 2014

14/766507

- Wilmington DE, US
Jun ZHENG - Morris Plains NJ, US
Mohand MELBOUCI - Wilmington DE, US

ISP INVESTMENTS INC. - Wilmington DE

C09K 8/24
E21B 43/16
E21B 7/00

What is described herein is an aqueous high-temperature high-pressure (HTHP) stable drilling mud composition comprising (i) about 20 wt. % to about 80 wt. % of 0-60% w/w brine solution; (ii) about 0.1 wt. % to about 3 wt. % of butylated reaction product of p-cresol and dicyclopentadiene, a polymeric hindered phenol based antioxidant; (iii) about 0.1 wt. % to about 10.0 wt. % of triethanol amine, a chelating agent; (iv) (a) about 0.1 wt. % to about 10 wt. % of rheology modifier (RM); and/or (b) about 0.5 wt. % to about 30 wt. % of fluid loss additive (FLA); (v) about 20 wt. % to about 80 wt. % of weighting agent; (vi) about 0 wt. % to about 20 wt. % of drilling solid; and (vii) about 0 wt. % to about 50 wt % of water.