John Frederick Ellenberg

📍 Herndon, VA: #2 of 12 inventorsTop 20%

🗺 Virginia: #268 of 1,348 inventorsTop 20%

Overall (1994): #114,721 of 165,921Top 70%

Patents 1994

Issued Patents 1994

Showing 1–1 of 1 patents

Patent #	Title	Co-Inventors	Date
5310228	Security door bolting mechanism	—	1994-05-10