Lisbeth T. Pfeiffer

SEStone & Webster Engineering: 1 patents #33 of 74Top 45%

Richfield, MN: #163 of 268 inventorsTop 65%

Minnesota: #32,449 of 52,454 inventorsTop 65%

Overall (All Time): #3,955,329 of 4,157,543Top 100%

1 Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #	Title	Co-Inventors	Date
4756886	Rough cut solids separator	Robert W. Pfeiffer	1988-07-12