Patent Leaderboard
USPTO Patent Rankings Data through Sept 30, 2025
DG

Dorian C. Guptill

QUQuestech: 2 patents #5 of 25Top 20%
Cornwall, VT: #4 of 10 inventorsTop 40%
Vermont: #2,192 of 4,968 inventorsTop 45%
Overall (All Time): #2,026,380 of 4,157,543Top 50%
2 Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
8999507 Method for applying and curing by UV radiation a sealant system onto natural stone tiles to provide permanent sealing, protection, abrasion resistance, stain and mold resistance, and natural stone tiles produced by the method David Pelletier, Roger Questel, Larry Wasowski 2015-04-07
8323749 Method for applying and curing by UV radiation a sealant system onto natural stone tiles to provide permanent sealing, protection, abrasion resistance, stain and mold resistance Roger Questel, Larry Wasowski, David Pelletier 2012-12-04