Robert H. Sipman

HA Hughes Aircraft: 1 patents #1,260 of 2,963Top 45%

📍 Agoura, CA: #89 of 158 inventorsTop 60%

🗺 California: #247,236 of 386,348 inventorsTop 65%

Overall (All Time): #3,914,562 of 4,157,543Top 95%

Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #	Title	Co-Inventors	Date
4968121	Hermetically sealed apparatus and method for maintaining crystals at a controlled operating temperature	Hans W. Bruesselbach	1990-11-06