Rancho Santa Fe, CA, United States of America

Richard C Helmstetter

This inventor holds 186 USPTO granted patents and 1 EPO patent, primarily in Golf Club Design (CPC class A63B5-304). Top assignees: Callaway Golf Company, Callaway Golf Club, Michael a. Catania. Active years: 1991-2009.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Richard C Helmstetter. Retrieved from https://idiyas.com/inventor/richard-c-helmstetter

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


% Patents Active = 97.3


Average Co-Inventor Count = 3.1

ph-index = 87

Forward Citations = 17,960(Granted Patents)

Forward Citations (Not Self Cited) = 17,099(Dec 10, 2025)


Inventors with similar research interests:

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Location History:

  • Rancho Sante Fe, CA (US) (2000)
  • Rancho Santo Fe, CA (US) (2003)
  • Carlsbad, CA (US) (1991 - 2006)
  • Santa Fe, CA (US) (2008)
  • Rancho Santa Fe, CA (US) (1998 - 2009)

Company Filing History:


Years Active: 1991-2009

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Areas of Expertise:
Golf Club Head
Multiple Material
Customizable Center of Gravity
Fitting Golf Clubs
Putter Head
Iron Golf Club
Scoreline Pattern
Face Insert
Products of Inertia
Golf Club
Ball Marking Tool
Golf Equipment
186 patents (USPTO):Explore Patents

Title: Richard C Helmstetter: Innovative Golf Club Inventor

Introduction:

Richard C Helmstetter, a renowned inventor hailing from Rancho Santa Fe, California, has made significant contributions to the world of golf with his creative designs and patents. With over 126 patents to his name, Helmstetter's latest inventions focus on the development of the multiple material golf club head, elevating golfing experiences for players worldwide.

Latest Patents:

One notable invention by Helmstetter is the multiple material golf club head. The club head is comprised of a face component and an aft body. The face component features a striking plate portion and a return portion, both made of metal material. On the other hand, the aft body is crafted using non-metal materials such as composite or thermoplastic materials.

Enhancing performance and functionality, Helmstetter's multiple material golf club head incorporates a striking plate portion with an aspect ratio under 1.7. Additionally, concentric regions of thickness are present, with the thickest area positioned at the center of the striking plate portion. The club head exhibits a volume ranging from 290 to 600 cubic centimeters, a weight from 165 to 300 grams, and a striking plate portion surface area between 4.00 and 7.50 square inches. Furthermore, it boasts a high coefficient of restitution, greater than 0.81, surpassing the USGA test conditions specified in the Rules of Golf.

Career Highlights:

Richard C Helmstetter's innovative vision has proven influential in the golf industry. Notably, he has made significant contributions to Callaway Golf Company and Callaway Golf Club. Through his involvement with these companies, Helmstetter's wealth of knowledge and expertise have been instrumental in driving technological advancements in golf club design and manufacturing.

Collaborations:

Throughout his career, Richard C Helmstetter has collaborated with esteemed figures in the industry. Notably, he has worked closely with J Andrew Galloway, a fellow innovator, and Alan Hocknell, both of whom have contributed to the development of cutting-edge golf club technologies. Collaborations such as these have brought forth groundbreaking innovations and propelled the industry forward.

Conclusion:

Richard C Helmstetter's unwavering dedication to innovation and his profound understanding of golf club design have resulted in numerous patents and groundbreaking inventions. His latest advancements in multiple material golf club heads have revolutionized the game, enabling players to enhance their performance on the course. Helmstetter's work with renowned companies and collaborations with industry experts demonstrate his relentless pursuit of innovation and his commitment to shaping the future of golfing 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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