Samuel L Thompson

6602994, Aug 5, 2003

Feb 10, 1999

09/248246

Mary Jean Cash - Wilmington DE
Anita N. Chan - Wilmington DE
Herbert Thompson Conner - Landenberg PA
Patrick Joseph Cowan - Hockessin DE
Robert Alan Gelman - Newark DE
Kate Marritt Lusvardi - Chadds Ford PA
Samuel Anthony Thompson - Wilmington DE
Frank Peine Tise - Wilmington DE

Hercules Incorporated - Wilmington DE

C08B 1100

536 30, 536 43, 536 44, 536 84, 536 90, 536 91, 536 92, 536 95, 536 96, 536 97, 536 99, 536100

A method for producing derivatized microfibrillar polysaccharide, including but not limited to cellulose, derivatized by steric and/or electrostatic forces, where the electrostatic forces are provided by anionic charge or by a combination of both anionic and cationic charge, by stabilizing and/or microfibrillating a polysaccharide starting material. A method of modifying the rheological properties of a composition of matter using derivatized microfibrillar polysaccharide. Method of improving coatings, paper manufacture, and the stability of emulsions, dispersions, and foams using a derivatized microfibrillar polysaccharide. Compositions that include derivatized microfibrillar polysaccharide, including paper compositions, comestible compositions, non-comestible spreadable compositions, and emulsions, dispersion, and foams.

6737158, May 18, 2004

Oct 30, 2002

10/284396

Samuel A. Thompson - Wilmington DE

Gore Enterprise Holdings, Inc. - Newark DE

B32B 306

4283066, 4283044, 4283084, 4283073, 4283155, 4283166, 4283171, 4283202, 4283227, 428421, 428900, 257701, 257702, 1741262, 204296, 89 3605, 89 3602

Composites comprising porous polymeric membrane films meeting the following equation: 75 MPa(longitudinal membrane tensile modulus+transverse membrane tensile modulus)/2, wherein at least a portion of the porosity of the membrane is imbibed with resin and methods for making the same. The composites have unusually high resistance to fracture and catastrophic failure.

56840519, Nov 4, 1997

Apr 24, 1996

8/637018

Samuel Anthony Thompson - Wilmington DE

Hercules Incorporated - Wilmington DE

A61K 4736
A61K 914
A61K 922
A61K 202

514777

Elastically deformable medical devices, such as stents, having improved speed and degree of shape recovery are made by treating shaped hydrogels containing a polymer with a solution containing at least one elasticity agent, which may be nonionic or ionic. For example, polysaccharide-based hydrogels, such as barium alginate, are formed into tubing, shaped into pigtail stents, and exposed to an aqueous solution containing an elasticity agent such as potassium ions, sodium ions, sorbitol, glucose, citric acid, mannitol, dulcitol, or glycerol. The solution may also contain a crosslinking agent, such as calcium ions, to achieve the desired degree of elasticity.

55123767, Apr 30, 1996

Jun 20, 1994

8/262190

Richard L. Brady - Wilmington DE
Samuel A. Thompson - Wilmington DE

Hercules Incorporated - Wilmington DE

B32B 904
C08K 554
C08K 501
C08F28312

428447

A reactive component, which is curable to form a nonpolar polymer containing silicon and carbon atoms, and having a glass transition temperature of at least 20. degree. C. , is mixed with an antiplasticizer. The resulting mixture, a curable composition, is cured to form a composition having an increased modulus. The reactive component preferably comprises a polyene having at least two hydrosilation reactive carbon-carbon double bonds (e. g. , dicyclopentadiene), and a silicon compound having at least two hydrosilation reactive. ident. SiH groups. Preferably the silicon compound comprising at least one member selected from the group consisting of cyclic polysiloxanes, tetrahedral siloxysilanes, and linear polysiloxanes. Preferably the resulting cured composition is crosslinked, due to at least one member selected from the group consisting of the polyene and the silicon compound having more than two hydrosilation reactive sites. Preferably the curable composition further comprises a hydrosilation catalyst.

57026823, Dec 30, 1997

Dec 1, 1995

8/566452

Samuel Anthony Thompson - Wilmington DE

Hercules Incorporated - Wilmington DE

A61K 4904

424 942

Disclosed is a method for providing radiopacity to a medical device comprising incorporating in said medical device metal-cation salt of anionic polymer, wherein the metal has atomic weight greater than about 40; radiopaque medical devices comprising the essentially water-insoluble metal-cation salts of anionic polymers; and a method for carrying out x-ray diagnostic procedures comprising administering to a subject a contrast agent comprised of the essentially water-insoluble metal-cation salts of anionic polymer.

55317359, Jul 2, 1996

Sep 27, 1994

8/312844

Samuel A. Thompson - Wilmington DE

Hercules Incorporated - Wilmington DE

A61K 922
A61K 914
A61F 200

6048911

The invention discloses temporary medical devices such as stent implants which can be disintegrated in-vivo upon demand by release of an agent held trapped within the device. The device is fabricated from a matrix polymer material which is essentially insoluble in body fluids and a disintegration agent which acts to initiate decomposition of the matrix polymer when contacted therewith. The disintegration agent is trapped within and chemically isolated from the matrix polymer such as by encapsulation, and is releasable within the matrix polymer upon contact of the device with a releasing agent which liberates the encapsulated disintegration agent.

55626530, Oct 8, 1996

Nov 16, 1994

8/340564

Samuel A. Thompson - Wilmington DE

Hercules Incorporated - Wilmington DE

A61K 922

6048901

The present invention provides shaped medical devices adapted for implant and subsequent in-vivo disintegration within a human or animal body. In one embodiment, the medical device is fabricated from a matrix polymer component, e. g. , a lactam, which has a ceiling temperature (Tc) within the range of from about 40. degree. C. to about 76. degree. C. Decomposition of this device is accomplished by heating the device in-vivo to a temperature at or above the ceiling temperature of the matrix polymer component. In another embodiment, the medical device is fabricated from an end-capped polyoxyalkylene matrix polymer component characterized by a depolymerization temperature of at least about 40. degree. C. and a ceiling temperature of 76. degree. C. or less after removal of the end-cap group.

41561856, May 22, 1979

Nov 18, 1977

5/852652

Fred W. Kelley - Media PA
Samuel A. Thompson - Wilmington DE

General Electric Company - Philadelphia PA

G01R 1900
G01R 1918

324107

A dc measuring circuit for power rectifiers is described wherein primary line current is utilized to measure direct current output. In the measuring circuit, line current transformers are connected to a multiphase instrument rectifier through a phase shifting current transformer which is adjustable to compensate for differences between the primary and secondary line current phase shift characteristics of the power transformer and any phase shift in the line current transformer. By such compensation, the average value of rectified primary line current in the measuring circuit is maintained independent of the commutating angle of the rectified power current. The dc measuring circuit includes means for providing unity current transformation through the phase shifting current transformer. The dc measuring circuit also includes means for handling the presence of zero sequence current without causing measurement error or circuit damage. The dc measuring circuit also includes means for indicating the blowing of a fuse associated with the power rectifier circuit.