Beaconsfield, Canada

H Keith Eastwood

This inventor holds 2 USPTO granted patents. Top assignees: Her Majesty the Queen in Right of Canada, as Represented by the Minister, Multi-State Devices Ltd.. Active years: 1976-1984.

IDiyas Innovation Intelligence. (2026). Inventor Profile: H Keith Eastwood. Retrieved from https://idiyas.com/inventor/h-keith-eastwood

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

Calculating rank

% Patents Active = 100.0

Average Co-Inventor Count = 3.0

ph-index = 2

Forward Citations = 66(Granted Patents)


Company Filing History:


Years Active: 1976-1984

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2 patents (USPTO):Explore Patents

Title: H Keith Eastwood: Innovator in Optical Fiber Technology

Introduction

H Keith Eastwood is a notable inventor based in Beaconsfield, CA. He has made significant contributions to the field of optical fiber technology, holding a total of 2 patents. His work has advanced the capabilities of optical fiber couplers and temperature-sensitive resistive elements.

Latest Patents

One of Eastwood's latest patents is for a multimode optical fiber coupler. This invention describes an optical fiber coupler designed to operatively couple together two or more optical fibers. Each coupler consists of several biconically tapered fibers, which are placed side by side or twisted around one another and fused together. The couplers are typically made of optical fibers with diameters ranging from about 100 to about 300 microns. The design allows for the reduction of cladding thickness, which is essential for achieving a coupling coefficient of about 40 percent and an average loss of about 10 percent.

Another significant patent by Eastwood involves a temperature-sensitive resistor that has a critical transition temperature. This solid-state switching device features a temperature-sensitive resistive element made of V.sub.3 O.sub.5 material, which exhibits an abrupt decrease in electrical resistance at approximately 140°C. The device includes electrode lead wires attached to spaced points of the resistive element for connecting it to an electrical circuit.

Career Highlights

Throughout his career, H Keith Eastwood has worked with various organizations, including Her Majesty the Queen in Right of Canada, as represented by the Minister, and Multi-State Devices Ltd. His innovative work has positioned him as a key figure in the development of optical technologies.

Collaborations

Eastwood has collaborated with notable individuals in his field, including Alexander W Lightstone and Frank Szarka. Their combined expertise has contributed to the advancement of optical fiber technology.

Conclusion

H Keith Eastwood's contributions to optical fiber technology and solid-state devices have made a lasting impact in the field. His innovative patents reflect his dedication to advancing technology and improving the efficiency of optical systems.

Profile summary based on public USPTO records.
Data Sources: USPTO Patent Grant XML, Patent Center, EPO & CIPO • Normalized by IDiyas Innovation Graph. Methodology & provenance architecturePlease report any incorrect information to [email protected]
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