M. A. Kempner, Inc.
2Patents
0Active
2Granted
27Portfolio score
Filing activity: Aug 27, 1982 → Jan 31, 1989
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4451700A | Automatic audience survey system | Electricity | 191 | Expired |
| US4922520A | Automatic telephone polling system | Electricity | 122 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.