logo

For the Inventor, By the Inventor

Poulsbo, WA, United States of America

David A Endrigo

This inventor holds 8 USPTO granted patents and 7 published patent applications and 1 EPO patent. Top assignees: In the Works, Other. Active years: 1996-2024.

IDiyas Innovation Intelligence. (2026). Inventor Profile: David A Endrigo. Retrieved from https://idiyas.com/inventor/david-a-endrigo

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

USPTO Granted Patents = 8 

% Patents Active = 50.0

 

Average Co-Inventor Count = 1.3

ph-index = 3

Forward Citations = 30(Granted Patents)


Location History:

  • Paulsbo, WA (US) (1996)
  • Keyport, WA (US) (2010 - 2014)
  • Poulsbo, WA (US) (2022 - 2024)

Company Filing History:

goldMedal4 out of 4 
 
In the Works
 patents
silverMedal3 out of 834,513 
Other
 patents
where one patent can have more than one assignee

Years Active: 1996-2024

Loading Chart...
Loading Chart...
8 patents (USPTO):Explore Patents
1. 11982216 - Emissions reduction systems and methods (2024-05-14),
2. 11519318 - Emissions reduction systems and methods (2022-12-06),
3. 11220948 - Emissions reduction systems and methods (2022-01-11),
4. 8765084 - High-efficiency catalytic converters for treating exhaust gases (2014-07-01),
5. 8298504 - High-efficiency catalytic converters for treating exhaust gases (2012-10-30),
6. 8034310 - High-efficiency catalytic converters for treating exhaust gases (2011-10-11),
7. 7807120 - High-efficiency catalytic converters for treating exhaust gases (2010-10-05),
8. 5549085 - Deflector insert for air filters (1996-08-27),

Title: The Innovative Contributions of David A. Endrigo

Introduction

David A. Endrigo is a notable inventor based in Poulsbo, WA (US). He has made significant contributions to the field of emissions reduction technology, holding a total of 8 patents. His work focuses on improving internal combustion engine efficiency and reducing harmful emissions.

Latest Patents

Among his latest patents is a groundbreaking emissions reduction system. This system involves an internal combustion engine emissions reduction mechanism where emissions passing through a second catalyst element, which has a second catalyst function, are mixed with emissions passing through a first catalyst element that has a first catalyst function. This innovative approach aims to enhance the overall effectiveness of emissions control in engines.

Career Highlights

David has worked with various companies throughout his career, including In the Works. His experience in the industry has allowed him to develop and refine his inventions, contributing to advancements in environmental technology.

Collaborations

One of his notable collaborators is Todd Kristian Hansen. Their partnership has likely fostered innovative ideas and solutions in the field of emissions reduction.

Conclusion

David A. Endrigo's work exemplifies the spirit of innovation in addressing environmental challenges. His patents and collaborations continue to influence the development of cleaner technologies in the automotive industry.

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]
Loading…