Walnut Creek, CA, United States of America

Leonard L Hofheins

This inventor holds 20 USPTO granted patents, primarily in Personal Care Devices. Top assignees: Squeezease, LLC, Advanced Dental Research Corporation, Schlage Lock Company LLC. Active years: 1989-2018.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Leonard L Hofheins. Retrieved from https://idiyas.com/inventor/leonard-l-hofheins

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


% Patents Active = 85.0

Average Co-Inventor Count = 2.9

ph-index = 12

Forward Citations = 666(Granted Patents)


Location History:

  • Concord, CA (US) (1989 - 2005)
  • Walnut Creek, CA (US) (1998 - 2007)
  • Provo, UT (US) (2010 - 2018)

Company Filing History:


Years Active: 1989-2018

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Areas of Expertise:
Skin Pore Cleaner
Dental Flosser
Cooking Apparatus
Fluid Coupler
Portable Chair
Story Lamp
Swimming Pool Cleaner
Electric Lock System
Telescoping Pole
Meal Delivery Cart
Abrading Skin
Dispensing Container
20 patents (USPTO):Explore Patents

Title: Leonard L. Hofheins: Innovator in Skin Abrasion and Cooking Technology

Introduction: Leonard L. Hofheins is a distinguished inventor based in Walnut Creek, CA, with a notable portfolio of 20 patents. His inventive contributions span various fields, showcasing his creativity and technical expertise.

Latest Patents: Among Hofheins' latest inventions is a "System for abrading skin to remove outer portions thereof." This innovative apparatus features a skin abrading head with a specialized rim and brush bristles. The design generates airflow that assists in engaging the skin with the rim and bristles to effectively transport removed skin portions. Additionally, he has developed a "Cooking apparatus employing a rotating cooking basket supported by extensible support structure." This patent outlines a unique cooking apparatus that includes a receptacle for cooking oil and an extensible support system that allows for the movement and rotation of a cooking basket, enhancing cooking efficiency.

Career Highlights: Over the years, Hofheins has contributed significantly to advancements in both dermatological and culinary technology. His experience includes roles at innovative companies, where he has implemented his inventive designs and improved existing technologies.

Collaborations: Throughout his career, Hofheins has collaborated with notable colleagues such as Del M. Thornock and Kathy Ann Fields. These partnerships have facilitated the development of his groundbreaking patents and contributed to the evolution of his ideas.

Conclusion: Leonard L. Hofheins exemplifies the spirit of innovation through his diverse patent portfolio and collaborative efforts. With advancements in skin abrasion techniques and cooking technology, Hofheins continues to leave a significant mark on the world of inventions.

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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