Sorensen v. WD-40 Co., No. 14-3067 (7th Cir. 2015)
Annotate this CaseSorensen is the CEO of Inhibitor Technology, which produces rust-inhibiting products containing volatile corrosion inhibitor (VCI), branded with the federally registered trademark THE INHIBITOR. That word mark is owned by Sorensen; he also claims common law trademark rights in a design mark associated with his products, an orange-and-black crosshair. The WD-40 Company, maker of the spray lubricant, introduced the new WD-40 Specialist product line. Sorensen claimed that the branding for those products infringed upon his marks. WD-40 Specialist Long-Term Corrosion Inhibitor, which contains VCI and has a purpose similar to that of Sorensen’s products, contains on its packaging both the word “inhibitor” and an orange crosshair. The district court granted summary judgment, finding that WD-40’s use of the word “inhibitor” was a non-trademark descriptive fair use of the word. As to the crosshair mark, the court found that Sorensen had not presented sufficient evidence to demonstrate a genuine issue of material fact as to a likelihood of confusion. The Seventh Circuit affirmed. The most important factors: similarity of the marks, bad faith intent, and evidence of actual confusion, weigh in favor of WD-40. No consumer would think that the marks are similar. The court noted the” clear weakness of Sorensen’s marks,” which appear inconsistently on his products.
Some case metadata and case summaries were written with the help of AI, which can produce inaccuracies. You should read the full case before relying on it for legal research purposes.
This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.