Charles D. Ray, Ltd.

Calculating rank

USPTO Granted Patents = 4

Forward Citations = 117

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3 inventors (with patents filed for the assignee):

Charles D Ray (4 out of 34 patents)

Eugene A Dickhudt (1 out of 72 patents)

Richard G Steller (1 out of 1 patent)

4 patents: Sort by Forward Citations

1. 4757983 - Head and chin for face-down operations (1988-07-19),

2. 4662619 - Kneeling attachment for operations in the prone sitting position (1987-05-05),

3. 4657002 - Bone impactors (1987-04-14),

4. 4610243 - Malleable force-fulcrum retractor (1986-09-09),

Company Overview

Charles D. Ray, Ltd. is a leading provider of high-quality financial and investment services. With a team of experienced professionals, we offer tailored solutions to meet our clients' diverse needs. Our areas of expertise include wealth management, retirement planning, and investment advisory services. We are committed to helping our clients achieve their financial goals and secure their future.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 27 2026

4 Patents

#10 in Wayzata, MN

#1,652 in Minnesota

#60,704 in US

Wayzata, MN, United States of America

Charles D. Ray, Ltd.

Forward Citations = 117

3 inventors:

Charles D Ray (4 out of 34 patents)

Eugene A Dickhudt (1 out of 72 patents)

Richard G Steller (1 out of 1 patent)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Charles D. Ray, Ltd.. Retrieved from https://idiyas.com/company/charles-d-ray

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

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]