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For the Inventor, By the Inventor

Gilroy, CA, United States of America

Errol C Armstrong

This inventor holds 5 USPTO granted patents and 1 EPO patent. Top assignees: Watwood, Inc., Other. Active years: 1993-2007.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Errol C Armstrong. Retrieved from https://idiyas.com/inventor/errol-c-armstrong-2lqggh0u

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

Calculating rank
USPTO Granted Patents = 5

% Patents Active = 100.0


Average Co-Inventor Count = 2.6

ph-index = 5

Forward Citations = 90(Granted Patents)


Location History:

  • Salinas, CA (US) (1993)
  • Castroville, CA (US) (1999)
  • Hollister, CA (US) (2004)
  • Gilroy, CA (US) (2005 - 2007)

Company Filing History:

goldMedal1 out of 1 
 
Watwood, Inc.
 patent
silverMedal4 out of 834,601 
Other
 patents

Years Active: 1993-2007

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5 patents (USPTO):Explore Patents
1. 7261309 - Wheelchair drive mechanism (2007-08-28),
2. 6893035 - Wheelchair drive mechanism (2005-05-17),
3. 6755430 - Wheelchair drive assembly (2004-06-29),
4. 6007082 - Wheelchair driver and braking system (1999-12-28),
5. 5263729 - Wheelchair driver and braking system (1993-11-23),

Title: Errol C Armstrong: Innovator in Wheelchair Technology

Introduction

Errol C Armstrong is a notable inventor based in Gilroy, CA (US). He has made significant contributions to the field of wheelchair technology, holding a total of 5 patents. His innovative designs focus on enhancing mobility and functionality for wheelchair users.

Latest Patents

One of Errol's latest patents is a wheelchair drive mechanism that allows the wheelchair to shift between forward and reverse. This mechanism utilizes a roller system that grabs in one direction while slipping in the opposite direction, effectively preventing binding. The shift mechanism is activated by rotating a shift paddle located at the extremity of a lever arm, which is remote from the roller mechanism. This design aims to improve the ease of use and maneuverability for wheelchair users.

Career Highlights

Throughout his career, Errol has worked with various companies, including Watwood, Inc. His experience in the industry has allowed him to develop practical solutions that address the needs of wheelchair users.

Collaborations

Errol has collaborated with notable individuals such as Brian M Watwood and Duane DeJong. These partnerships have contributed to the development of his innovative designs and patents.

Conclusion

Errol C Armstrong's work in wheelchair technology exemplifies his commitment to improving mobility for individuals with disabilities. His innovative patents and collaborations highlight his significant impact in this 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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