DH

David James Hoolas

BO Baker Hughes Oilfield Operations: 2 patents #266 of 1,057Top 30%
BL Bp Exploration Operating Company Limited: 2 patents #29 of 168Top 20%
📍 Ilford, GB: #16 of 62 inventorsTop 30%
Overall (All Time): #1,826,464 of 4,157,543Top 45%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
11814572 Methods of cementing a wellbore without using a spacer fluid with a chain extended non-ionic surfactant Angela Anh Doan, Antonio Bottiglieri, Daniel J. Daulton, Cresencio Perez, Shanshan Huang +2 more 2023-11-14
11268010 Methods of cementing a wellbore without using a spacer fluid with an alkyl end-capped ethoxylated fatty alcohol Angela Anh Doan, Antonio Bottiglieri, Daniel J. Daulton, Cresencio Perez, Shanshan Huang +2 more 2022-03-08