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Ring Knife Patents & Trademarks

The ring knife was invented and Patented by the founder of the company in the late 1800's and early 1900's.   For over 100 years now, we have manufactured only ring knives. Through the use of Patents and Trademarks, we have continually protected our proprietary rights and we do the same for our Resellers and Distributors.  We currently hold Patent(s) and Trademark(s) on our new plastic ring knives and even though the Patent on the metal ring knife expired decades ago, we have successfully Trademarked the design of this knife, as well as the names "HANDY" and "ULTRA GOLD".

View original patent documents

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