1
Thomas A Duff: Vertebral clamp. Wisconsin Alumni Research Foundation, David J Houser, September 16, 1986: US04611582 (366 worldwide citation)

A vertebral clamp adapted to control the spatial relationship between two vertebrae by attachment to the laminae thereof. The vertebral clamp includes a longitudinally extending body divided into first and second halves. The halves are fastened together by fastening means that allow for adjustment o ...


2
Thomas A Duff Sr: Rotating platform for potted plants. Montgomery Patent & Design, Robert C Montgomery, Joseph T Yaksich, May 1, 2012: US08166701 (5 worldwide citation)

A rotating base for house plant planters is herein disclosed, wherein said base slowly turns to complete a revolution within a pre-determined period, to urge the plant in the planter to grow in a vertical direction. The planter base is powered by a battery which is charged using a solar panel, there ...