Royal Tool, Inc.
3Patents
0Active
3Granted
27Portfolio score
Filing activity: Oct 3, 1977 → Oct 15, 1991
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4101179A | Drilling stabilizer including mechanical interlock device | Mechanical Engineering; Lighting; Heating | 23 | Expired |
| US4769954A | Apparatus for supporting and grinding an edge of a planar glass workpiece | Performing Operations; Transporting | 8 | Expired |
| US5152641A | Method and apparatus for controlling glass drilling | Emerging Cross-Sectional Technologies | 6 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.