Valen-tech Posted on February 14, 2019 by bwheelock Happy Valentine’s Day! Here is a tribute to the inventors who make Valentine’s Day, and every day better for society. U.S. Patent No. 5,160,087 protected a drinking straw for couples. U.s. Patent No. 7,339,449 protects a Magnetic Woven Heart. U.S. Patent No. 1,603,592 protected a greeting card perfect for the holiday. U.S. Patent No. 4,194,629 protected a “Love Box.” U.S. Patent No. D85,341, protected the name plate for a Love Tester.