Royd H. Ellis

📍 Washington, DC: #1,663 of 3,063 inventorsTop 55%

🗺 District of Columbia: #1,663 of 3,063 inventorsTop 55%

Overall (All Time): #4,078,963 of 4,157,543Top 100%

Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #	Title	Co-Inventors	Date
4360430	Spill retrieval mechanism for removing a spilled substance from a liquid surface	—	1982-11-23