Inventor · disambiguated record
Rajagopala N. Pillai
Also filed as: PILLAI RAJAGOPALA · PILLAI RAJAGOPALA N
4 granted patents·4 pending applications·2 citations·filing 2012–2025
58Inventor score
Top patents by PatentIndex Score
8 records- 0178US8535408B2High thermal conductivity hardfacingSUE JIINJEN ALBERT·Filed 2012·Granted Sep 17, 2013·2 cites·24 claims
- 0255US10787737B2Downhole drill bit with coated cutting elementNAT OILWELL DHT LP·Filed 2016·Granted Sep 29, 2020·0 cites·20 claims
- 0355US2025170667A1Weld joints involving dissimilar metals and methods for forming sameNAT OILWELL VARCO LP·Filed 2025·Application pending·0 cites
- 0447US12240066B2Weld joints involving dissimilar metals and methods for forming sameNAT OILWELL DHT LP·Filed 2020·Granted Mar 4, 2025·0 cites·11 claims
- 0547US2018266002A1Multilayered coating for downhole tools with enhanced wear resistance and acidic corrosion resistanceNAT OILWELL DHT LP·Filed 2018·Application pending·0 cites
- 0644US10590704B2High strength corrosion resistant high velocity oxy fuel (HVOF) coating for downhole toolsSUE JIINJEN ALBERT·Filed 2012·Granted Mar 17, 2020·0 cites·14 claims
- 0744US2015132604A1Multilayered Coating for Downhole Tools with Enhanced Wear Resistance and Acidic Corrosion ResistanceNAT OILWELL DHT LP·Filed 2014·Application pending·0 cites
- 0838US2018016848A1Anti-Balling Drill Bit and Method of Making SameNAT OILWELL DHT LP·Filed 2016·Application pending·0 cites
Join the waitlist — get patent alerts
Get an alert when Rajagopala N. Pillai files or is granted a new patent.
We store only your email — no account needed. See our privacy policy.
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →