Company Filing History:
10 out of 298 
2 out of 832,880 Years Active: 1991-2005
Title: Innovations by Raymond D Underwood
Introduction
Raymond D Underwood is a notable inventor based in Red Bluff, California. He has made significant contributions to the field of analytical chemistry, particularly in the development of methods for measuring glucose levels in blood. With a total of 12 patents to his name, Underwood's work has had a profound impact on medical diagnostics.
Latest Patents
Underwood's latest patents include a reagent test strip adapted for receiving an unmeasured sample while in use in an apparatus. This innovative method for determining the presence of an analyte in a fluid involves taking a reflectance reading from one surface of an inert porous matrix impregnated with a reagent. The reagent interacts with the analyte to produce a light-absorbing reaction product when the fluid is applied to another surface and migrates through the matrix. Reflectance measurements are made at two separate wavelengths to eliminate interferences. A timing circuit is triggered by an initial decrease in reflectance due to the wetting of the surface being measured. Repeatability is ensured by a normalization technique performed on the light source before each reading. This method is particularly suitable for measuring glucose levels in blood without requiring the separation of red blood cells from serum or plasma.
Career Highlights
Throughout his career, Underwood has worked with various companies, including Lifescan Corporation. His innovative approaches have led to advancements in the field of glucose monitoring, making it easier for individuals to manage their health.
Collaborations
Underwood has collaborated with notable professionals in his field, including Roger C Phillips and Geoffery McGarraugh. These collaborations have contributed to the success of his inventions and the development of new technologies.
Conclusion
Raymond D Underwood's contributions to the field of medical diagnostics through his innovative patents have significantly advanced the way glucose levels are measured in blood. His work continues to influence the industry and improve health outcomes for many individuals.