JL

John S. Lettow

VM Vorbeck Materials: 1 patents #2 of 8Top 25%
📍 Washington, DC: #9 of 308 inventorsTop 3%
🗺 District of Columbia: #9 of 308 inventorsTop 3%
Overall (2017): #44,674 of 506,227Top 9%
4
Patents 2017

Issued Patents 2017

Showing 1–4 of 4 patents

Patent #TitleCo-InventorsDate
9810350 Fuel system components John M. Crain, Kate Redmond 2017-11-07
9811774 Resilient radio-frequency tag Sriram Manivannan, Dan Scheffer, Kenneth E Fritsch 2017-11-07
9731540 Security devices Dan Scheffer 2017-08-15
9625062 Fuel system components John M. Crain, Kate Redmond 2017-04-18