Kent, WA, United States of America

Louis W Champan

This inventor holds 6 USPTO granted patents. Top assignees: Melco Inc., Proctor & Associates Company, Inc.. Active years: 1976-1978.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Louis W Champan. Retrieved from https://idiyas.com/inventor/louis-w-champan

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


% Patents Active = 100.0

Average Co-Inventor Count = 1.4

ph-index = 4

Forward Citations = 61(Granted Patents)


Location History:

  • Bellevue, WA (US) (1976)
  • Kent, WA (US) (1976 - 1978)

Company Filing History:


Years Active: 1976-1978

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6 patents (USPTO):Explore Patents

Title: Innovations of Louis W Champan

Introduction

Louis W Champan is a notable inventor based in Kent, WA (US). He has made significant contributions to the field of telecommunications, particularly with his innovative designs for telephone systems. With a total of 6 patents to his name, Champan has demonstrated a commitment to advancing technology in communication.

Latest Patents

One of his latest patents is the "Combined rotary dial and touch-tone telephone decoding system." This invention features a rotary dial signal processing circuit that integrates with a Touch-Tone digital decoding system. The system interprets line signals to determine the on/off hook condition, dial pulsing, and completion of a dial pulse sequence. It effectively counts dial pulses and provides a 4-bit output code compatible with Touch-Tone codes. Another significant patent is the "Digital decoder for multiple frequency telephone signalling." This device measures the two-tone output from a multiple-frequency dial type telephone, producing a unique binary code for each number dialed. It also includes provisions for detecting specific transfer digits, enhancing the functionality of telephone systems.

Career Highlights

Throughout his career, Champan has worked with various companies, including Melco Inc. and Proctor & Associates Company, Inc. His experience in these organizations has contributed to his expertise in telecommunications and innovation.

Collaborations

Champan has collaborated with notable individuals such as Arthur T Perkins and Darryl F Proctor. These partnerships have likely influenced his work and led to further advancements in his inventions.

Conclusion

Louis W Champan's contributions to telecommunications through his patents and collaborations highlight his role as an influential inventor. His work continues to impact the industry, showcasing the importance of innovation in communication technology.

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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