PERMA-COLUMN, INC
2Patents
1Active
2Granted
35Portfolio score
Filing activity: Feb 28, 2002 → Mar 15, 2013
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6964139B2 | Precast concrete column for use in post-frame construction | Fixed Constructions | 19 | Expired |
| US9540814B2 | Foundation column | Fixed Constructions | 8 | Active |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.