Seminole, FL, United States of America

Robert D Pettigrew

This inventor holds 3 USPTO granted patents. Top assignees: Beckwith Electric Co., Inc., Other. Active years: 1982-1992.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Robert D Pettigrew. Retrieved from https://idiyas.com/inventor/robert-d-pettigrew

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

Calculating rank

% Patents Active = 100.0

Average Co-Inventor Count = 1.2

ph-index = 3

Forward Citations = 60(Granted Patents)


Location History:

  • Pinellas, FL (US) (1982)
  • Seminole, FL (US) (1988 - 1992)

Company Filing History:


Years Active: 1982-1992

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3 patents (USPTO):Explore Patents

Title: The Innovations of Robert D Pettigrew

Introduction

Robert D Pettigrew is an accomplished inventor based in Seminole, FL (US). He holds a total of 3 patents that showcase his expertise in electrical engineering and power distribution systems. His innovative contributions have significantly impacted the field, particularly in the areas of voltage control and power factor management.

Latest Patents

One of his latest patents is the "Remote bias voltage setting LTC control system." This invention pertains to an alternating current power distribution system that utilizes load tap changing (LTC) transformers. The system includes circuitry that allows for remotely adjustable bias voltage, which can be combined with the LTC control voltage to manage the center operating level of the band effectively.

Another notable patent is the "Power factor control with overvoltage and undervoltage override control." This method and apparatus are designed to control the power factor and voltage on an electrical distribution line. It operates based on the power factor while incorporating a voltage override control. The design includes hysteresis above an undervoltage limit and below an overvoltage limit to prevent undesired oscillation in switching the capacitor controls.

Career Highlights

Throughout his career, Robert D Pettigrew has worked with reputable companies, including Beckwith Electric Company, Inc. His experience in these organizations has allowed him to refine his skills and contribute to significant advancements in electrical engineering.

Collaborations

Robert has collaborated with various professionals in his field, including his coworker Sanh D Luong. Their joint efforts have led to innovative solutions and improvements in power distribution technologies.

Conclusion

Robert D Pettigrew's contributions to electrical engineering through his patents and career achievements highlight his role as a significant innovator in the industry. His work continues to influence advancements in power distribution systems and voltage control.

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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