Inventor
Peter D. Phelps
Inventor
Schenectady, NY, US
Overview
Patents· 46 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
C08Gprimary
C08GMacromolecular compounds obtained otherwise than by reactions only involving unsaturated carbon-to-carbon bonds39%
C07CAcyclic or carbocyclic compounds13%
Y10TTechnical subjects covered by former us classification8%
B01JChemical or physical processes, e.g. catalysis or colloid chemistry6%
C07DHeterocyclic compounds6%
C08LCompositions of macromolecular compounds5%
Y02PClimate change mitigation technologies in the production or processing of goods5%
C07FAcyclic, carbocyclic or heterocyclic compounds containing elements other than carbon, hydrogen, halogen, oxygen, nitrogen, sulfur, selenium or tellurium2%
C08JWorking-up2%
D06MTreatment, not provided for elsewhere in class d06, of fibres, threads, yarns, fabrics, feathers or fibrous goods made from such materials2%
PatentTitleYear
8,283,437'Preparation of low-acid polyalkylene terephthalate and preparation of macrocyclic polyester oligomer therefrom'20127,767,781'Preparation of low-acid polyalkylene terephthalate and preparation of macrocyclic polyester oligomer therefrom'20107,750,109'Use of a residual oligomer recyclate in the production of macrocyclic polyester oligomer'20107,732,557'Methods for removing catalyst residue from a depolymerization process stream'20107,666,517'Isolation, formulation, and shaping of macrocyclic oligoesters'20107,615,511'Organo-titanate catalysts for preparing pure macrocyclic oligoesters'20097,304,123'Processes for shaping macrocyclic oligoesters'20077,256,241'Methods for polymerizing macrocyclic polyester oligomers using catalyst promoters'20077,186,666'Catalytic systems'20077,126,022'Method and apparatus for preparing monofunctional aromatic chloroformates suitable for use as chainstopping agents'20067,071,291'Isolation, formulation and shaping of macrocyclic oligoesters'20066,962,968'Purification of macrocyclic oligoesters'20056,906,147'Catalytic systems'20056,790,934'Method for purification of aromatic polyethers'20046,787,632'Organo-titanate catalysts for preparing pure macrocyclic oligoesters'20046,713,601'Species modification in macrocyclic polyester oligomers, and compositions prepared thereby'20046,630,568'Method for purification of aromatic polyethers'20036,576,739'Method of polycarbonate preparation'20036,570,038'Aqueous hexasubstituted guanidinium chlorides and methods for their preparation and use'20036,465,685'Method for oxidation of xylene derivatives'20026,436,548'Species modification in macrocyclic polyester oligomers, and compositions prepared thereby'20026,392,079'Method and apparatus for preparing monofunctional aromatic chloroformates suitable for use as chainstopping agents'20026,265,521'Method for preparing polyether polymers of predetermined molecular'20016,235,866'Slurry preparation of bis (halophthalimides) and of polyether polymers'20016,235,934'Aqueous hexasubstituted guanidinium chlorides and methods for their preparation and use'20016,143,858'Polyestercarbonate comprising residues of branched diacids'20005,872,294'Aqueous hexasubstituted guanidinium chlorides and methods for their preparation and use'19995,821,322'Diaminoalkyl quaternary ammonium salts and method for their preparation and use'19985,804,525'Method for making polycarbonates'19985,759,406'Adsorption process for organic base recovery from aqueous brine solutions'19985,739,257'Binary phase transfer/amine catalyst for making aromatic polycarbonates'19985,726,856'Hexasubstituted guanidinium salts and ultracapacitors employing them as electrolytes'19985,652,312'Redistribution of organic polyestercarbonate compositions'19975,530,083'Silicone-polycarbonate block copolymers and polycarbonate blends having reduced haze, and method for making'19965,519,105'Method for making polycarbonates'19965,391,692'Method for making aromatic polycarbonates'19955,360,911'Process for the preparation of stilbazolium salts'19945,300,624'Method for making flame retardant polycarbonate'19945,300,623'Method for making polycarbonate substantially free of diaryl carbonate'19945,274,068'Catalytic, interfacial, pH controlled preparation of polyester polycarbonate'19935,206,334'Branched polycarbonate from 2\',4,4\"-m-terphenyltriol'19935,194,984'Stilbazolium salt and optically non-linear devices incorporating same'19935,142,088'Preparation of branched polycarbonates and chloroformates, and intermediates therefor'19925,136,018'Macrocyclic polyarylate compositions of decreased crystallinity'19925,094,553'Optical waveguides and method for their fabrication'19925,015,720'Method for preparing polycarbonates containing aliphatic ester groups'1991Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1991–2006Patents assigned to GEN ELECTRIC (30)· patent assignee history
1991–2012Based in Schenectady, NY, US· patent location history
2002–2012Patents assigned to CYCLICS CORP (15)· patent assignee history
2005–2007Based in Clifton Park, NY, US· patent location history
2007–2010Based in Williamstown, MA, US· patent location history
2012Patents assigned to FALER GARY R (1)· patent assignee history
2012Patents assigned to PHELPS PETER D (1)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| GEN ELECTRIC | 30 | 1991–2006 |
| CYCLICS CORP | 15 | 2002–2012 |
| FALER GARY R | 1 | 2012 |
| PHELPS PETER Dself | 1 | 2012 |
Locations
| Location | Patents | Span |
|---|---|---|
| Schenectady, New York, US | 39 | 1991–2012 |
| Williamstown, Massachusetts, US | 5 | 2007–2010 |
| Clifton Park, New York, US | 2 | 2005–2007 |