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David Edgren Patents
Inventor:
Edgren; David
Address:
Los Altos, CA
No. of patents:
11
Patents:












Patent Number Title Of Patent Date Issued
8246986 Drug coating providing high drug loading August 21, 2012
Aqueous drug coatings including at least one insoluble drug, wherein the insoluble drug accounts for about 85 wt % to about 97 wt % of the drug coatings are described. Such drug coatings may include only one insoluble drug, two or more insoluble drugs, or one or more insoluble drugs in
8226979 Drug coating providing high drug loading and methods for providing the same July 24, 2012
The present invention is directed to aqueous drug coatings that include at least one insoluble drug, wherein the drug accounts for about 85 wt % to about 97 wt % of the drug coatings. A drug coating according to the present invention may include only one insoluble drug, two or more i
4917895 Transdermal drug delivery device April 17, 1990
A diffusional drug delivery device is described which can provide shelf life stability of the system components, elimination of the initial burst of drug and hence irritation, delayed onset of therapeutic effect and delivery of a therapeutic agent at an optimum rate. A metal layer and an
4587117 Medical device for delivering drug to pH environments greater than 3.5 May 6, 1986
An osmotic device is disclosed for delivering a beneficial agent to a first environment having a pH of 1.0 to 3.5 inclusive and to a second environment having a pH of greater than 3.5 to 8.0. The device maintains its integrity in the first environment and loses its integrity in the s
4553973 Process for preparing osmotic device November 19, 1985
An osmotic delivery system is disclosed for dispensing a useful agent. The system comprises a semipermeable wall surrounding a compartment housing the agent. The wall comprises a cellulose ether, an organic solvent soluble polymer, and optionally an aqueous soluble polymer. A passageway
4522625 Drug dispenser comprising wall formed of semipermeable member and enteric member June 11, 1985
An osmotic dispenser is disclosed for releasing drug formulation in the gastrointestinal tract. The dispenser comprises a semipermeable-enteric wall surrounding a compartment housing drug formulation. A passageway in the wall communicates with the compartment for dispensing drug form
4519801 Osmotic device with wall comprising cellulose ether and permeability enhancer May 28, 1985
An osmotic delivery system is disclosed for dispensing a useful agent. The system comprises a semipermeable wall surrounding a compartment housing the agent. The wall comprises a cellulose ether, an organic solvent soluble polymer, and optionally an aqueous soluble polymer. A passageway
4503030 Device for delivering drug to certain pH environments March 5, 1985
An osmotic device is disclosed for delivering a beneficial agent to a first environment having a pH of 1.0 to 3.5 inclusive and to a second environment having a pH of greater than 3.5 to 8.0. The device maintains its integrity in the first environment and loses its integrity in the s
4484921 Theophylline therapy utilizing osmotic delivery November 27, 1984
An osmotic device is disclosed that provides a means for improving the delivery properties of a beneficial agent in situ.
4439195 Theophylline therapy March 27, 1984
An osmotic device is disclosed that provides a means for improving the delivery properties of a beneficial agent in situ.
4326525 Osmotic device that improves delivery properties of agent in situ April 27, 1982
An osmotic device is disclosed that provides a means for improving the delivery properties of a beneficial agent in situ.










 
 
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