DS

Dennis I. Spencer

📍 Henderson, CO: #7 of 26 inventorsTop 30%
🗺 Colorado: #13,156 of 40,980 inventorsTop 35%
Overall (All Time): #1,647,682 of 4,157,543Top 40%
3
Patents All Time

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
5527137 Knife structure for shoring assemblies used in excavations — 1996-06-18
5310290 Protective structure for excavations — 1994-05-10
5306103 Wheeled carriage assembly for trench shields — 1994-04-26