John Fuller Spong 1901 - sunshades for horses
Fred William Spong 1978 - an early CD type technology
Catherine Y. Spong 2008 - uses for polypeptides
Alfred Spong 2002 - garment hanger lock
Jaquelin K. Spong 1996-1997 - electronic devices
Keith Brookes Spong 1999, 2004 - device to evaporate defrost tray, door opening & closing system
Mark Spong 2007 - dampening waves in transmission lines
Richard V. Spong 2005 - disposable fluid delivery system
Spong & Company 1856-1963 (more on Spong & Co) - kitchen appliances, meat grinders/mincers, the Corkette wine bottle opener