RF

Ronald J. Frere

EM Emhart: 3 patents #79 of 310Top 30%
🗺 Massachusetts: #33,482 of 88,656 inventorsTop 40%
Overall (All Time): #1,671,241 of 4,157,543Top 45%
3
Patents All Time

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
4848115 Electronic locking system and key therefor Bruce A. Clarkson, Thomas G. Loughlin, William Taylor, Peter Mongeau 1989-07-18
4789859 Electronic locking system and key therefor Bruce A. Clarkson, Thomas G. Loughlin, William Taylor, Peter Mongeau 1988-12-06
4712398 Electronic locking system and key therefor Bruce A. Clarkson, Thomas G. Loughlin, William Taylor, Peter Mongeau 1987-12-15