Darren B. Howell

Follow

Person

Van Nuys, CA, US

People

Patents Grantslast 30 patents

Information Patent Grant
Portable display board
- Patent number 9,805,631
- Issue date Oct 31, 2017
- Darren B. Howell
- G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS

Patents Applicationslast 30 patents

Information Patent Application
Portable Display Board
- Publication number 20160275832
- Publication date Sep 22, 2016
- Darren B. Howell
- G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS