Heierli & Co.
1Patents
0Active
1Granted
23Portfolio score
Filing activity: Aug 8, 1993 → Aug 8, 1993
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5443305A | Tunnelling machine | Fixed Constructions | 6 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.