Betty Marrou Scardino

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Katy, TX, US

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Patents Grantslast 30 patents

Information Patent Grant
Process for recycling polytrimethylene terephthalate cyclic dimer
- Patent number 6,576,774
- Issue date Jun 10, 2003
- Shell Oil Company
- Betty Marrou Scardino
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Optimum dipropylene glycol content polytrimethylene terephthalate c...
- Patent number 6,509,438
- Issue date Jan 21, 2003
- Shell Oil Company
- Donald Ross Kelsey
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Purification of 1,3-propanediol in carbonyl-containing stream
- Patent number 6,245,879
- Issue date Jun 12, 2001
- Shell Oil Company
- Donald Ross Kelsey
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Polymerization process
- Patent number 5,218,065
- Issue date Jun 8, 1993
- Shell Oil Company
- Donald R. Kelsey
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...

Patents Applicationslast 30 patents

Information Patent Application
Process for recycling polytrimethylene terephthalate cyclic dimer
- Publication number 20020032302
- Publication date Mar 14, 2002
- Betty Marrou Scardino
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Application
Optimum dipropylene glycol content polytrimethylene terephthalate c...
- Publication number 20020009353
- Publication date Jan 24, 2002
- Donald Ross Kelsey
- D01 - NATURAL OR ARTIFICIAL THREADS OR FIBRES SPINNING