Douglas A. Newberg

NT Nl Technologies: 1 patents #1 of 1Top 100%

📍 Annapolis, MD: #3 of 33 inventorsTop 10%

🗺 Maryland: #191 of 2,377 inventorsTop 9%

Overall (2004): #66,904 of 270,089Top 25%

Patents 2004

Issued Patents 2004

Showing 1–2 of 2 patents

Patent #	Title	Co-Inventors	Date
6821773	Drainable ferrule valve design	—	2004-11-23
6786470	Circumferential sealing diaphragm valve	—	2004-09-07