Patents by Inventor Ruthven H. Daniels

Ruthven H. Daniels has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Rain retardant screen
    Patent number: 4017282
    Abstract: A device is presented which prevents rain drops from penetrating and which allows light and gas to be transmitted in a rain-free environment. The device is a screen assembly whose outer surface (toward outdoors) has a contact angle with water of greater than 90.degree. and whose inner surface has a contact angle with water of less than 90.degree..
    Type: Grant
    Filed: May 22, 1975
    Date of Patent: April 12, 1977
    Inventors: Joseph G. Zahka, Ruthven H. Daniels