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David James Stewart

This inventor holds 36 USPTO granted patents and 3 published patent applications, primarily in Location Positioning. Top assignees: Nexrf Corporation, Physio-Control, Inc., Nevrf Corporation. Active years: 1988-2025.

USPTO Granted Patents = 36 (Patent Applications = 3)

% Patents Active = 69.4

Average Co-Inventor Count = 2.3

ph-index = 11

Forward Citations = 685(Granted Patents)

Location History:

Elkhart, IN (US) (1988)
San Carlos, CA (US) (1999 - 2002)
Tracy, CA (US) (2018)
Zephyr Cove, NV (US) (2012 - 2019)
Reno, NV (US) (2020)
Carnation, WA (US) (2016 - 2021)
Stateline, NV (US) (2014 - 2023)

Company Filing History:

6. 9 out of 834,350

Other

patents

where one patent can have more than one assignee

Years Active: 1988-2025

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Areas of Expertise:

Location Positioning

Content Delivery

Medical Monitoring

Geofencing

Decision Support

Image Scanning

Defibrillator Systems

Real-Time Data Distribution

User Interface

Intelligent Agents

Emergency Monitoring

Jump Velocity Monitoring

36 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 12342313 - Location positioning engine system and method (2025-06-24),

2. 11729576 - Targeted content delivery (2023-08-15),

3. 11706733 - Location positioning engine system and method (2023-07-18),

4. 11019158 - Real-time data distribution system for patient monitoring devices, cardiac defibrillators and associated information delivery systems (2021-05-25),

5. 10909584 - Content relevance weighting system (2021-02-02),

6. 10721705 - Content Relevance Weighting System (2020-07-21),

7. 10560798 - Targeted content delivery (2020-02-11),

8. 10559384 - Decision support system using intelligent agents (2020-02-11),

9. 10500404 - Universally adaptable module for defibrillator monitors (2019-12-10),

10. 10430492 - System and method for handset positioning with dynamically updated RF fingerprinting (2019-10-01),

11. 10257287 - Real-time data distribution system for patient monitoring devices, cardiac defibrillators and associated information delivery systems (2019-04-09),

12. 10169774 - Network based indoor positioning and geofencing system and method (2019-01-01),

13. 10099063 - Medical monitor-defibrillator with defibrillator and data operations processors (2018-10-16),

14. 10068667 - Decision support system using intelligent agents (2018-09-04),

15. 9960711 - Single phase inverters cooperatively controlled to provide one, two, or three phase unipolar electricity (2018-05-01),

Title: David James Stewart: Pioneering Innovator in Location-Based Technology

Introduction:

David James Stewart, a visionary inventor based in Stateline, NV, is renowned for his passionate dedication to innovation and his unwavering commitment to excellence. With an impressive portfolio of 35 patents, Stewart continues to push the boundaries of technology and inspire the next generation of inventors and entrepreneurs.

Latest Patents:

One of Stewart's recent patents includes a groundbreaking system for targeted content delivery to wireless handsets. This system utilizes beacon technology and user profiles to deliver personalized content to users, revolutionizing the way information is distributed in the digital realm. Additionally, Stewart has developed a cutting-edge location positioning engine system and method, enhancing the accuracy and efficiency of determining the location of wireless devices.

Career Highlights:

Throughout his career, Stewart has made significant contributions to the tech industry, with notable stints at companies like NexRF Corporation. His innovative solutions have garnered acclaim for their ingenuity and practicality, solidifying his reputation as a trailblazer in the field of location-based technology.

Collaborations:

Stewart has collaborated with esteemed professionals in the industry, including his coworkers Michael Anthony Kerr and Cheryl Protas. Together, they have worked tirelessly to bring innovative ideas to life and elevate the standards of technological advancements in their respective fields.

Conclusion:

In conclusion, David James Stewart's remarkable journey as an inventor highlights his unwavering passion for innovation and his relentless pursuit of excellence. His groundbreaking inventions and collaborative spirit serve as a beacon of inspiration for aspiring inventors and entrepreneurs, shaping the future of technology in profound ways.

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