LP

Lewis D. Proctor

OE Otis Engineering: 2 patents #82 of 228Top 40%
HA Halliburton: 1 patents #490 of 857Top 60%
Overall (All Time): #1,655,059 of 4,157,543Top 40%
3
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
5329999 Annular safety system Pat M. White 1994-07-19
4840229 Multiple position service seal unit with positive position indicating means Colby M. Ross, Brian P. Manzi, Frank Giusti, Jr. 1989-06-20
4722392 Multiple position service seal unit with positive position indicating means Colby M. Ross, Brian P. Manzi, Frank Giusti, Jr. 1988-02-02