Xuming Z Chen, 535751 Ludington Dr, Houston, TX 77035

8481154, Jul 9, 2013

Aug 31, 2010

12/872028

Lih-Long Chu - Midland MI, US
Xuming Chen - Pearland TX, US

Dow GLobal Technologies Inc. - Midland MI

B32B 17/10
B32B 27/00
B32B 27/08
B32B 25/16

428339, 428421, 428500, 428515

The backsheet comprises a coextruded multilayer sheet that comprises:.

8609231, Dec 17, 2013

Dec 8, 2010

12/963172

Shaofu Wu - Sugar Land TX, US
Peter S. Martin - Houston TX, US
Xuming Chen - Pearland TX, US
Michelle L. Boven - Midland MI, US
Weijun Zhou - Lake Jackson TX, US
Valentina A. Kuznetsova - Midland MI, US

Dow Global Technologies LLC - Midland MI

B32B 7/02
B32B 17/06

428215, 428337, 428412, 428421, 428422, 4284242, 4284255, 428441

The present invention generally relates to composite laminates and uses thereof in articles in need of protection from mechanical damage and water or oxygen based degradation.

2014000, Jan 9, 2014

Mar 23, 2012

14/006220

Shaofu Wu - Sugar Land TX, US
Xuming Chen - Pearland TX, US
Michael A. De Graaf - Middelburg, NL
Steven R. Erskine - Lake Jackson TX, US
Rebekah K. Feist - Midland MI, US

C09K 11/02
H01L 31/055

136257, 25230135

Disclosed are thermoplastic resin formulations for use as a light transmitting layer (e.g., encapsulant layer) in a photovoltaic module comprising: (a) a light transmitting thermoplastic resin, (b) at least one down conversion material that exhibits a maximum in incident radiation absorption in the range of 280 to 500 nm and a maximum in radiation emission at a relatively longer wavelength in the range of 400 to 900 nm and improves the efficiency of photovoltaic electric current generation in a photovoltaic module; and (c) a light stabilizer additive that transmits at least about 40 percent of the ultraviolet (UV) electromagnetic radiation having a wavelength in the range of from about 280 nm to about 380 nm. Also disclosed are sheet materials prepared from such resins and photovoltaic modules incorporating such sheet materials.

2021008, Mar 25, 2021

Sep 23, 2019

16/579558

- Houston TX, US
Xuming Chen - Katy TX, US

E21B 33/06

A packer assembly for an annular blowout preventer includes an annular packer, a plurality of inserts, and a support. The plurality of inserts is arranged circumferentially about the annular packer and configured to move radially inward to enable the packer assembly to move from an open position in which the packer assembly enables fluid flow through a central bore to a closed position in which the packer assembly blocks fluid flow through the central bore. The support is positioned below the plurality of inserts with respect to a height of the packer assembly and is configured to block at least a portion of the annular packer from moving into an opening extending through the annular packer in the closed position.

2019022, Jul 25, 2019

Jan 25, 2018

15/879810

- Houston TX, US
Xuming Chen - Katy TX, US

Cameron International Corporation - Houston TX

E21B 33/035
E21B 47/12
C09K 8/42
E21B 33/038

Service life characteristics of an elastomer component used for sealing in a BOP are monitored. Measurements are made in situ on the BOP while deployed at a wellsite. The measurements can be related to contact pressure and/or sealing pressure of elastomer components in an annular BOP. The measurements are used to monitor the service life of the elastomer component.

2018025, Sep 13, 2018

Mar 13, 2017

15/456734

- Houston TX, US
XUMING CHEN - KATY TX, US

E21B 33/06
E21B 33/12

An annular blowout preventer includes a housing, an annular packer positioned within the housing, and an annular piston assembly positioned within the housing. An annular contacting surface of the annular piston is configured to contact the annular packer while the annular blowout preventer is in the open position. The annular blowout preventer also includes a plurality of inserts extending axially through the annular packer and arranged circumferentially within the annular packer. The annular piston is configured to drive the annular packer in an axial direction within the housing, thereby compressing the annular packer, causing the plurality of inserts to rotate radially inwardly, and moving the annular blowout preventer from the open position to a closed position

2018002, Jan 25, 2018

Jul 25, 2016

15/218936

- Houston TX, US
Xuming Chen - Katy TX, US

Cameron International Corporation - Houston TX

E21B 33/06

A blowout preventer (“BOP”) for sealing against an object includes a housing comprising a bore extending through the housing with the object being extendable through the bore. The BOP further includes a packer assembly movably positioned within the housing and configured to form a seal within the housing. The packer assembly includes a body comprising an elastomeric material and an insert at least partially positioned within the body. The insert comprises a harder material section and a softer material section with respect to the harder material section and configured to deform against the object.

2017003, Feb 9, 2017

Apr 15, 2015

15/304386

- Midland MI, US
- Philadelphia PA, US
Edwin Nungesser - Horsham PA, US
Xuming Chen - Katy TX, US

C08L 23/02
C08J 5/18

A polymeric composition suitable for blown film applications comprising a) 80 to 99.5 percent by weight of a continuous polymeric phase comprising a polyolefin, and b) 0.5 to 20 percent by weight of polymeric particles having i) an average particle diameter of 0.85 to 20 μm; ii) a refractive index from 1.46 to 1.61; iii) an average particle hardness from 1.2367E+10 N/mto 8.4617E+10 N/m; and iv) at least 60% polymerized acrylic monomer units, is disclosed. The polymeric composition can be used to form blown film characterized by having a thickness in the range of from 5 to 350 μm, a modulus of elasticity in the range of from 5 to 133 MPa, a melt strength in the range of from 4 to 40 cN, an elongation at break in the range of from 100 to 1000%, a 45 degree gloss in the range of from 7 to 136 and a softness measured by human panel handfeel-ranking methodology, measured by ISO 8587 Sensory analysis that is higher than a film which does not contain the polymeric composition.