DR

Donald P. Rigney

ES Empire Comfort Systems: 5 patents #2 of 12Top 20%
📍 Belleville, IL: #23 of 206 inventorsTop 15%
🗺 Illinois: #17,877 of 84,256 inventorsTop 25%
Overall (All Time): #1,044,945 of 4,157,543Top 30%
5
Patents All Time

Issued Patents All Time

Showing 1–5 of 5 patents

Patent #TitleCo-InventorsDate
6481343 Barbecue grill grate Lloyd Maschhoff 2002-11-19
6446545 Food cooking apparatus with drain spigot 2002-09-10
6269737 Food cooking apparatus David M. Christensen 2001-08-07
6083392 Ribbed funnel 2000-07-04
5974954 Barbecue grill grate Lloyd Maschhoff 1999-11-02