DL

David Leslie

Schlumberger Technology: 3 patents #1,953 of 7,293Top 30%
GE: 2 patents #13,562 of 36,430Top 40%
Overall (All Time): #619,898 of 4,157,543Top 15%
8
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
11634910 Sump drain apparatus, system, and method of construction 2023-04-25
11060292 Sump drain apparatus, system, and method of construction 2021-07-13
10760275 Sump drain apparatus, system, and method of construction 2020-09-01
6739423 Acoustic logging tool Hitoshi Tashiro, Jahir Pabon, Frank J. Morris, Hitoshi Sugiyama, David C. Hoyle +1 more 2004-05-25
6668629 Methods and apparatus for web-enabled engine-generator systems 2003-12-30
6631310 Wireless engine-generator systems digital assistant 2003-10-07
6494288 Acoustic logging tool Hitoshi Tashiro, Jahir Pabon, Frank J. Morris, Hitoshi Sugiyama, David C. Hoyle +1 more 2002-12-17
4896303 Method for cementation evaluation using acoustical coupling and attenuation Jacques A. E. de Selliers de Moranville, Dennis Pittman 1990-01-23