AC

Andy C. Chang

HS Halliburton Energy Services: 2 patents #198 of 917Top 25%
Overall (2020): #194,401 of 565,922Top 35%
2
Patents 2020

Issued Patents 2020

Patent #TitleCo-InventorsDate
10711331 Polycrystalline diamond compact with gradient interfacial layer Gagan Saini, Qi Liang, Paul B. Lively, William Brian Atkins 2020-07-14
10598005 pH-sensitive chemicals for downhole fluid sensing and communication with the surface Aaron Cade Prince, Krishna M. Ravi, John Paul Bir Singh, Marcos Aurelio Jaramillo, Walmy Cuello Jimenez +3 more 2020-03-24