DR

David A. Robertson

VA Varian: 2 patents #151 of 684Top 25%
MC Manitowoc Crane Companies: 1 patents #48 of 82Top 60%
📍 Manitowoc, WI: #53 of 267 inventorsTop 20%
🗺 Wisconsin: #9,054 of 40,088 inventorsTop 25%
Overall (All Time): #967,919 of 4,157,543Top 25%
5
Patents All Time

Issued Patents All Time

Showing 1–5 of 5 patents

Patent #TitleCo-InventorsDate
11167713 Roll-over protection apparatus 2021-11-09
10183848 Height adjustment mechanism for an auxiliary member on a crane Timothy James Albinger, Jonathan Michael Borlee, Derrick L. Geiser, Ingo Noeske, Brian N. Nysse +5 more 2019-01-22
7950696 Roll-over protection system Robert J. Parkinson 2011-05-31
4463255 Apparatus for enhanced neutralization of positively charged ion beam Norman L. Turner 1984-07-31
4421988 Beam scanning method and apparatus for ion implantation Norman L. Turner 1983-12-20