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

Dirk Allan Terpstra — 4 Patents

MTMortarless Technologies: 4 patents #7 of 13Top 55%
Oronoco, MN: #49 of 103 inventorsTop 50%
Minnesota: #15,886 of 52,454 inventorsTop 35%
Overall (All Time): #1,209,754 of 4,157,543Top 30%
4 Patents All Time

Issued Patents All Time

Showing 1–4 of 4 patents

Patent #TitleCo-InventorsDate
D723146 Square fire pit Travis Robert Lawrence, Brian A. Price 2015-02-24
D723147 Square fire pit Travis Robert Lawrence, Brian A. Price 2015-02-24
D723148 Square fire pit Travis Robert Lawrence, Brian A. Price 2015-02-24
D716927 Victorian fireplace Jeffrey Paul Price, Brian A. Price 2014-11-04