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Research Development Systems, Inc. Patents
Assignee:
Research Development Systems, Inc.
Address:
Pasadena, CA
No. of patents:
5
Patents:












Patent Number Title Of Patent Date Issued
4765907 Wearable, continuously internally operable and externally regenerable dialysis device August 23, 1988
Wearable, continuously internally operable, externally regenerable dialysis system in which body fluids are dialyzed against a first dialysis fluid within a chamber in the body without invasion of veins or arteries, the chamber being a body cavity or a semi-permeable wall within the body
4282793 Composite drum head August 11, 1981
A composite drum head, comprising polyaramide fiber fabric impregnated with a rigidifying amount of epoxy polymer.
4282793 Composite drum head August 11, 1981
A composite drum head, comprising polyaramide fiber fabric impregnated with a rigidifying amount of epoxy polymer.
4152635 Battery charger May 1, 1979
A battery charging circuit employing three operational amplifiers, one to sense charging current and two to regulate constant voltage charging, one for low rate or float level and one for high rate charging. A resistance element acts as part of the current sensing circuit and also limits
4019508 Wearable, self-contained fully mobile personal breathing apparatus for surgeons and operating ro April 26, 1977
Wearable, self-contained and fully mobile personal breathing apparatus adapted to be worn by a surgeon or other operating room personnel is provided. The apparatus controls contamination of operating room spaces generated by the air normally expired by the wearer during surgery. The

 
 
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