Wyman Stephens

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Baytown, TX, US

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Patents Grantslast 30 patents

Information Patent Grant
Pre-dried polystyrene/alumina compound for foam extrusion
- Patent number 11,639,429
- Issue date May 2, 2023
- Fina Technology, Inc.
- Fengkui Li
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Polystyrene compositions for foam extrusion
- Patent number 11,414,529
- Issue date Aug 16, 2022
- Fina Technology, Inc.
- Fengkui Li
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Grant
Polyethylene fibers and processes of forming the same
- Patent number 9,556,538
- Issue date Jan 31, 2017
- Fina Technology, Inc.
- Cyril Chevillard
- D01 - NATURAL OR ARTIFICIAL THREADS OR FIBRES SPINNING
Information Patent Grant
Polyethylene fibers and processes of forming the same
- Patent number 8,623,982
- Issue date Jan 7, 2014
- Fina Technology, Inc.
- Cyril Chevillard
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...

Patents Applicationslast 30 patents

Information Patent Application
PRE-DRIED POLYSTYRENE/ALUMINA COMPOUND FOR FOAM EXTRUSION
- Publication number 20210040286
- Publication date Feb 11, 2021
- Fina Technology, Inc.
- Fengkui Li
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Application
POLYSTYRENE COMPOSITIONS FOR FOAM EXTRUSION
- Publication number 20190390026
- Publication date Dec 26, 2019
- Fina Technology, Inc.
- Fengkui Li
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Application
Polyethylene Fibers and Processes of Forming the Same
- Publication number 20140048963
- Publication date Feb 20, 2014
- Fina Technology, Inc.
- Cyril Chevillard
- D01 - NATURAL OR ARTIFICIAL THREADS OR FIBRES SPINNING
Information Patent Application
Polyethylene Fibers and Processes of Forming the Same
- Publication number 20100136310
- Publication date Jun 3, 2010
- Fina Technology, Inc.
- Cyril Chevillard
- D01 - NATURAL OR ARTIFICIAL THREADS OR FIBRES SPINNING
Information Patent Application
FIBER PROCESSING OF HIGH ETHYLENE LEVEL PROPYLENE-ETHYLENE RANDOM C...
- Publication number 20080061468
- Publication date Mar 13, 2008
- Frank Li
- D01 - NATURAL OR ARTIFICIAL THREADS OR FIBRES SPINNING