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For the Inventor, By the Inventor

Portola Valley, CA, United States of America

David Stevenson Spain, Jr

This inventor holds 37 USPTO granted patents and 1 published patent application, primarily in Wireless Location Estimation. Top assignees: Polaris Wireless, Inc., Tera Research Incorporated. Active years: 2004-2017.

IDiyas Innovation Intelligence. (2026). Inventor Profile: David Stevenson Spain, Jr. Retrieved from https://idiyas.com/inventor/david-stevenson-spain-jr

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

USPTO Granted Patents = 37 

% Patents Active = 97.3

Average Co-Inventor Count = 2.0

ph-index = 17

Forward Citations = 888(Granted Patents)


Company Filing History:

goldMedal36 out of 133 
 
Polaris Wireless, Inc.
 patents
silverMedal1 out of 1 
 
Tera Research Incorporated
 patent

Years Active: 2004-2017

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Areas of Expertise:
Wireless Terminal
Signal Strength
RF Fingerprinting
Propagation-Time
Location Estimation
Mobile Station
Pattern Matching
Antenna System
Signal Path Impairment
Facial Recognition
Speaker Recognition
Body Motion Tracking
37 patents (USPTO):Explore Patents
1. 9844019 - Estimating the location of a wireless terminal in wireless telecommunications systems that comprise distributed and/or repeater antennas (2017-12-12),
2. 9479902 - Determining a propagation-time adjustment for a wireless coverage area, based on information provided by wireless terminals (2016-10-25),
3. 9473896 - Estimating proximity to a mobile station by manipulating an interfering signal (2016-10-18),
4. 9414350 - Determining a propagation-time adjustment for a wireless coverage area, based on information provided by wireless terminals (2016-08-09),
5. 9408173 - Base station timing derived from wireless terminal information (2016-08-02),
6. 9408030 - Estimating proximity to a mobile station by manipulating an interfering signal (2016-08-02),
7. 9402157 - Estimating proximity to a mobile station by manipulating a signal that is decodable, but unexpected in the wireless network serving the mobile station (2016-07-26),
8. 9398402 - Tracking large numbers of wireless terminals (2016-07-19),
9. 9374801 - Estimating information about an antenna system, based on propagation-time measurements that are provided by wireless terminals (2016-06-21),
10. 9301273 - Base station timing derived from wireless terminal information (2016-03-29),
11. 9220080 - Determining a propagation-time adjustment for a wireless coverage area, based on information provided by wireless terminals (2015-12-22),
12. 9173064 - Estimating proximity to a mobile station by manipulating an interfering signal (2015-10-27),
13. 9164162 - Estimating information about an antenna system, based on propagation-time measurements that are provided by wireless terminals (2015-10-20),
14. 9088943 - Base station timing derived from wireless terminal information (2015-07-21),
15. 8838137 - Estimating the location of a wireless terminal in wireless telecommunications systems that comprise distributed and/or repeater antennas (2014-09-16),

Title: David Stevenson Spain, Jr.: A Pioneer in Wireless Telecommunications Innovation

Introduction

David Stevenson Spain, Jr. is an accomplished inventor based in Portola Valley, California, holding an impressive portfolio of 37 patents. His contributions primarily focus on advancements in wireless telecommunications systems. Through innovative techniques and methods, Spain seeks to enhance the accuracy and efficiency of wireless communication.

Latest Patents

Among his latest patents, Spain developed a technique for estimating the location of a wireless terminal in wireless telecommunications systems that comprise distributed and/or repeater antennas. This technique exploits location-dependent traits of electromagnetic signals and identifies possible locations of a wireless terminal based on propagation delay measurements. Additionally, he devised a method and system to determine a propagation-time adjustment for a wireless coverage area, utilizing data from multiple wireless terminals to derive adjusted measurements. These advancements significantly improve the precision of wireless terminal location estimation.

Career Highlights

David Spain’s career includes key roles at notable companies such as Polaris Wireless, Inc. and Tera Research Incorporated. His work at these organizations has allowed him to develop innovative solutions that address critical challenges in the wireless telecommunications landscape. His patent portfolio reflects his commitment to advancing technology and improving user experiences in wireless communication.

Collaborations

Throughout his career, David has collaborated with distinguished professionals such as Robert Lewis Martin and Scot Douglas Gordon. These partnerships have fostered a creative environment conducive to groundbreaking innovations in the field of telecommunications.

Conclusion

David Stevenson Spain, Jr. stands out as a vital contributor to the evolution of wireless telecommunications technology. Through his inventive spirit and dedication to problem-solving, he continues to shape the future of communication systems. His patents are a testament to his expertise and passion for innovation in this dynamic field.

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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