Lawsuit Summary - Zanfel vs. Lowell Mac

Zanfel (plaintiff) logged a complaint against Lowell Mac (defendant) for patent infringement on in the U.S. District Court of Michigan (case no. 1:12-cv-01339) on Monday, December 09, 2012.

Zanfel Laboratories is in the business of producing dermatological consumer products. The product developed is also the name of the company including Zanfel® Poison Ivy and Oak & Sumac Wash and sold in pharmacies nationwide. Merilyn Fedak operates business under the name of Lowell Mac.

The patents involved in this suit are 

Patent Number Current Assignee[*]	Issued Date	Expiration Date[†]	Title
US7008963 William M. Yarbrough Foundation	Mar 07, 2006	Jul 03, 2019	Urushiol induced contact dermatitis solution
US6423746 William M. Yarbrough Foundation	Jul 23, 2002	Jul 03, 2019	Urushiol induced contact dermatitis and method of use

Note: Table information is sourced from Maxval’s Assignment Database and Litigation Database.                                                    

William M. Yarbrough transacts business under the name of Zanfel that markets the product as a wash for treating poison ivy, oak and sumac exposure. He also established William M. Yarbrough Foundation, a charitable, non-profit organization and the Zanfel patents are licensed to the foundation, which is its sole owner, as the federal lawsuit states. Zanfel (see Fig.1) removes the oily toxin called urushiol from the skin. Zanfel is sold without a prescription, and is available through drug stores and www.zanfel.com. The complaint says that the defendant has infringed the above patents by manufacturing and selling a product indicated for the treatment of poison ivy at amazon.com. 

 

Fig.1

Zanfel has recently filed patent infringement case against the following companies/individuals:

Defendant	Case Number	Date Filed	Status
Janet Ziff	1:12-cv-01337	12/07/2012	Pending
Frank Turrentine	1:12-cv-00318	03/30/2012	Pending

If you are interested in knowing more about the cases filed by Zanfel, please contact us.

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[*]MaxVal offers Patent Assignment Alert service where subscribers receive email alerts when assignments relating to target applications, patents or entities of interest are recorded.

[†] Expected expiration date. Patent Term Estimator is a free web-based tool that automatically calculates patent terms and expiration dates for U.S. utility patents.