Hippopatch is a registered trade mark of Dolphin Sealants LLC. Hippopatch is manufactured to serve the outdoors men and women to create a quick and easy, but long term leak repair product to get you back in action. Hippopatch is manufactured in the USA under ISO9001 and under stringent QC control. Dolphin Sealants continuously tries to improve formulations, products and find new applications for our product lines. Hippopatch is a patent pending formulation. Dolphin Sealants LLC has been in business since 2004. The Hippopatch product line has shown rapid growth with satisfied customers. Nowadays Hippopatch products are sold to thousands of customers monthly throughout the United States.