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| Number | Title | Issue Date |
| 7928167 | PHA blends This invention relates to blends containing two or more polyhydroxyalkanoates (PHAs), and related methods and articles. ... | 04/19/2011 |
| 7893194 | Single solvent polymer extraction methods This invention relates to single solvent polymer extraction methods. ... | 02/22/2011 |
| 7795376 | Single solvent polymer extraction methods A method of isolating a PHA, includes combining the PHA, a first solvent and a second solvent to form a combination, the first solvent being capable of forming an azeotrope with the second solvent; and heating the combination to form the azeotrope of the first and s... | 09/14/2010 |
| 7781539 | PHA blends This invention relates to blends containing two or more polyhydroxyalkanoates (PHAs), and related methods and articles. ... | 08/24/2010 |
| 7718720 | Nucleating agents Nucleants and related compositions, articles, and methods are described. ... | 05/18/2010 |
| 7713720 | Polymer extraction methods Polymer extraction methods are disclosed. ... | 05/11/2010 |
| 7576173 | Single solvent polymer extraction methods The present invention provides methods for isolating a PHA. The method comprises combining the PHA, a first solvent and a second solvent to form a combination, the first solvent and the second solvent being capable of forming an azeotrope with the second solvent; an... | 08/18/2009 |
| 7455999 | Transgenic systems for the manufacture of poly (3-hydroxy-butyrate-co-3-hydroxyhexanoate) Methods for engineering transgenic organisms that synthesize polyhydroxyalkanoates (PHAs) containing 3-hydroxyhexanoate as comonomer have been developed. These processes are based on genetically engineered bacteria such as Escherichia coli or in plant crops a... | 11/25/2008 |
| 7268205 | Medical devices and applications of polyhydroxyalkanoate polymers Devices formed of or including biocompatible polyhydroxyalkanoates are provided with controlled degradation rates, preferably less than one year under physiological conditions. Preferred devices include sutures, suture fasteners, meniscus repair devices, rivets, tac... | 09/11/2007 |
| 7252980 | Polymer extraction methods Polymer extraction methods are disclosed. ... | 08/07/2007 |
| 7244442 | Method for making devices using polyhydroxyalkanoate having pyrogen removed Polyhydroxyalkanoates (PHAs) from which pyrogen has been removed are provided for use in numerous biomedical applications. PHAs which have been chemically modified to enhance physical and/or chemical properties, for targeting or to modify biodegradability or clearan... | 07/17/2007 |
| 7230144 | Methods of making intermediates from polyhydroxyalkanoates Methods of forming intermediates from PHAs are disclosed. ... | 06/12/2007 |
| 7229804 | Biological systems for manufacture of polyhydroxyalkanoate polymers containing 4-hydroxyacids The gene encoding a 4-hydroxybutyryl-CoA transferase has been isolated from bacteria and integrated into the genome of bacteria also expressing a polyhydroxyalkanoate synthase, to yield an improved production process for 4HB-containing polyhydroxyalkanoates using tr... | 06/12/2007 |
| 7208535 | PHA compositions and methods for their use in the production of PHA films PHA pellet compositions are provided which are processible into blown and cast free-standing films. The Mw of the PHA in the pellets used to produce the films is at least 470,000, at least 435,000 if PHA thermal stabilizers of the invention are used. In order to ach... | 04/24/2007 |
| 7202064 | Polyhydroxyalkanoate biopolymer compositions Several novel PHA polymer compositions produced using biological systems include monomers such as 3-hydroxybutyrate, 3-hydroxypropionate, 2-hydroxybutyrate, 3-hydroxyvalerate, 4-hydroxybutyrate, 4-hydroxyvalerate and 5-hydroxyvalerate. These PHA compositions can rea... | 04/10/2007 |
| 7179883 | Medical devices and applications of polyhydroxyalkanoate polymers Devices formed of or including biocompatible polyhydroxyalkanoates are provided with controlled degradation rates, preferably less than one year under physiological conditions. Preferred devices include sutures, suture fasteners, meniscus repair devices, rivets, tac... | 02/20/2007 |
| 7001969 | Methods of making intermediates from polyhydroxyalkanoates Methods of forming intermediates from PHAs are disclosed. ... | 02/21/2006 |
| 6933404 | Methods of making intermediates from polyhydroxyalkanoates In some embodiments, this invention relates to a method that includes contacting a PHA with an aprotic catalyst to form an ester. The ester has only one monomer unit from the PHA. In certain embodiments, this invention relates to a method that includes treating a PH... | 08/23/2005 |
| 6844447 | Methods of making intermediates from polyhydroxyalkanoates Methods of forming intermediates from PHAs are disclosed. In general, the methods include forming a pyrrolidone from a PHA, such as poly 4-hydroxybutyrate or a 4-hydroxybutyrate containing polymer. The methods can include, for example, treating (e.g., heating) the P... | 01/18/2005 |
