DW

David J. Watanabe

UC Union Oil Company Of California: 10 patents #35 of 385Top 10%
EI Excalibur Ip: 2 patents #80 of 667Top 15%
📍 Calgary, CA: #305 of 5,407 inventorsTop 6%
Overall (All Time): #416,491 of 4,157,543Top 15%
12
Patents All Time

Issued Patents All Time

Showing 1–12 of 12 patents

Patent #TitleCo-InventorsDate
9934315 Method and system for web searching Paul Broman, Ariel Seidman 2018-04-03
9477763 Personalized search results utilizing previously navigated web sites Paul Broman, Ariel Seidman 2016-10-25
4739833 Method of acidizing high-temperature subterranean formations David R. Watkins 1988-04-26
4567946 Increasing the permeability of a subterranean reservoir 1986-02-04
4487265 Acidizing a subterranean reservoir 1984-12-11
4480694 Method for acidizing high temperature subterranean reservoirs 1984-11-06
4476930 Inhibition of scale deposition from steam generation fluids 1984-10-16
4475595 Method of inhibiting silica dissolution during injection of steam into a reservoir David R. Watkins 1984-10-09
4454914 Method for conditioning geothermal brine to reduce scale formation 1984-06-19
4267887 Method for acidizing high temperature subterranean formations 1981-05-19
4261421 Method for selectively acidizing the less permeable zones of a high temperature subterranean formation 1981-04-14
4203492 Method for acidizing siliceous materials contained in high temperature formations 1980-05-20