C. Keller & Co.
2Patents
0Active
2Granted
23Portfolio score
Filing activity: Aug 20, 1975 → Aug 26, 1975
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4018324A | Process and apparatus for arranging bricks in setting layers of rectangular configuration | Emerging Cross-Sectional Technologies | 11 | Expired |
| US4039072A | Apparatus and method for conveying molded briquettes from a press to bed plates via an inclined conveyance track | Performing Operations; Transporting | 7 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.