Inventor

PHELPS PETER DAVID

US16 patents

⚠️ This page may combine multiple inventors who share the name “PHELPS PETER DAVID”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

GEN ELECTRIC

15 patents

US6235866B1May 22, 2001

Slurry preparation of bis (halophthalimides) and of polyether polymers

GEN ELECTRIC75 citations95

US6790934B2Sep 14, 2004

Method for purification of aromatic polyethers

GEN ELECTRIC24 citations92

US5726856AMar 10, 1998

Hexasubstituted guanidinium salts and ultracapacitors employing them as electrolytes

GEN ELECTRIC25 citations92

US6265521B1Jul 24, 2001

Method for preparing polyether polymers of predetermined molecular

GEN ELECTRIC50 citations91

US6235934B1May 22, 2001

Aqueous hexasubstituted guanidinium chlorides and methods for their preparation and use

GEN ELECTRIC24 citations91

US6630568B1Oct 7, 2003

Method for purification of aromatic polyethers

GEN ELECTRIC49 citations90

US5821322AOct 13, 1998

Diaminoalkyl quaternary ammonium salts and method for their preparation and use

GEN ELECTRIC35 citations90

US6392079B1May 21, 2002

Method and apparatus for preparing monofunctional aromatic chloroformates suitable for use as chainstopping agents

GEN ELECTRIC15 citations84

US5872294AFeb 16, 1999

Aqueous hexasubstituted guanidinium chlorides and methods for their preparation and use

GEN ELECTRIC10 citations72

US5652312AJul 29, 1997

Method and apparatus for preparing monofunctional aromatic chloroformates suitable for use as chainstopping agents

GEN ELECTRIC0 citations52

(unassigned)

1 patent

US6570038B1May 27, 2003

Aqueous hexasubstituted guanidinium chlorides and methods for their preparation and use

12 citations73

PHELPS PETER DAVID

GEN ELECTRIC

Slurry preparation of bis (halophthalimides) and of polyether polymers

Method for purification of aromatic polyethers

Hexasubstituted guanidinium salts and ultracapacitors employing them as electrolytes

Method for preparing polyether polymers of predetermined molecular

Aqueous hexasubstituted guanidinium chlorides and methods for their preparation and use

Method for purification of aromatic polyethers

Diaminoalkyl quaternary ammonium salts and method for their preparation and use

Method and apparatus for preparing monofunctional aromatic chloroformates suitable for use as chainstopping agents

Aqueous hexasubstituted guanidinium chlorides and methods for their preparation and use

Redistribution of organic polyestercarbonate compositions

Adsorption process for organic base recovery from aqueous brine solutions

Method for oxidation of xylene derivatives

Method of polycarbonate preparation

Polyestercarbonate comprising residues of branched diacids

Method and apparatus for preparing monofunctional aromatic chloroformates suitable for use as chainstopping agents

(unassigned)

Aqueous hexasubstituted guanidinium chlorides and methods for their preparation and use