Phelps; Peter David

Patent Applications and Registrations

Patent applications and USPTO patent grants for Phelps; Peter David.The latest application filed is for "method and apparatus for preparing monofunctional aromatic chloroformates suitable for use as chainstopping agents".

Company Profile

0.11.3

Phelps; Peter David - Schenectady NY

*profile and listings may contain filings by different individuals or companies with the same name. Review application materials to confirm ownership/assignment.

Patent Activity

Patent	Date
Method and apparatus for preparing monofunctional aromatic chloroformates suitable for use as chainstopping agents Grant 7,126,022 - Silva , et al. October 24, 2	2006-10-24
Method for purification of aromatic polyethers Grant 6,790,934 - Johnson , et al. September 14, 2	2004-09-14
Method for purification of aromatic polyethers Grant 6,630,568 - Johnson , et al. October 7, 2	2003-10-07
Aqueous hexasubstituted guanidinium chlorides and methods for their preparation and use Grant 6,570,038 - Caringi , et al. May 27, 2	2003-05-27
Method and apparatus for preparing monofunctional aromatic chloroformates suitable for use as chainstopping agents App 20030078449 - Silva, James Manio ; et al.	2003-04-24
Method for purification of aromatic polyethers App 20020151675 - Johnson, Norman Enoch ; et al.	2002-10-17
Method of polycarbonate preparation App 20020111456 - Phelps, Peter David ; et al.	2002-08-15
Method and apparatus for preparing monofunctional aromatic chloroformates suitable for use as chainstopping agents Grant 6,392,079 - Silva , et al. May 21, 2	2002-05-21
Method for preparing polyether polymers of predetermined molecular Grant 6,265,521 - Fyvie , et al. July 24, 2	2001-07-24
Aqueous hexasubstituted guanidinium chlorides and methods for their preparation and use Grant 6,235,934 - Caringi , et al. May 22, 2	2001-05-22
Slurry preparation of bis (halophthalimides) and of polyether polymers Grant 6,235,866 - Khouri , et al. May 22, 2	2001-05-22
Diaminoalkyl quaternary ammonium salts and method for their preparation and use Grant 5,821,322 - Brunelle , et al. October 13, 1	1998-10-13
Adsorption process for organic base recovery from aqueous brine solutions Grant 5,759,406 - Phelps , et al. June 2, 1	1998-06-02
Hexasubstituted guanidinium salts and ultracapacitors employing them as electrolytes Grant 5,726,856 - King, Jr. , et al. March 10, 1	1998-03-10

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