Watson, Incorporated
7Patents
3Active
7Granted
36Portfolio score
Filing activity: May 30, 1975 → Jul 14, 2022
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US3999620A | Core barrel | Performing Operations; Transporting | 16 | Expired |
| US7093679B1 | Foundation drilling apparatus and method with continuously variable hydraulic differential rotary table | Mechanical Engineering; Lighting; Heating | 6 | Expired |
| US3999619A | Core barrel | Performing Operations; Transporting | 4 | Expired |
| US10890033B1 | Kelly bar with locking feature, related system and method | Fixed Constructions | 2 | Active |
| US4023629A | Toggle actuated underreamer | Fixed Constructions | 1 | Expired |
| US11414929B2 | Drilling apparatus and related method | Fixed Constructions | 0 | Active |
| US11725457B2 | Drilling apparatus and related method | Fixed Constructions | 0 | Active |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.