DB

Douglas Butler

UM United Memories: 13 patents #5 of 18Top 30%
SO Sony: 9 patents #4,874 of 25,231Top 20%
RA Ramtron: 6 patents #2 of 21Top 10%
NS Nippon Steel Semiconductor: 4 patents #6 of 41Top 15%
PP Promos Technologies Pte.: 4 patents #3 of 24Top 15%
NC Nmb Semiconductor Company: 3 patents #1 of 17Top 6%
IL Inmos Limited: 2 patents #30 of 90Top 35%
RI Ramtron International: 1 patents #54 of 82Top 70%
HO Honeywell: 1 patents #7,507 of 14,447Top 55%
MV Mosel Vitelic: 1 patents #197 of 482Top 45%
📍 Maple Grove, MN: #71 of 1,211 inventorsTop 6%
🗺 Minnesota: #2,175 of 52,454 inventorsTop 5%
Overall (All Time): #139,779 of 4,157,543Top 4%
28
Patents All Time

Issued Patents All Time

Showing 26–28 of 28 patents

Patent #TitleCo-InventorsDate
4679170 Resistor with low thermal activation energy Ronald R. Bourassa 1987-07-07
4560419 Method of making polysilicon resistors with a low thermal activation energy Ronald R. Bourassa 1985-12-24
4235011 Semiconductor apparatus Thomas E. Hendrickson, Ronald Koelsch 1980-11-25