Tumbleweed Software Corp.
5Patents
0Active
5Granted
27Portfolio score
Filing activity: Oct 24, 1996 → Feb 3, 2003
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5790790A | Electronic document delivery system in which notification of said electronic document is sent to a recipient thereof | Electricity | 1,057 | Expired |
| US6151675A | Method and apparatus for effecting secure document format conversion | Electricity | 103 | Expired |
| USD399836S | Computer display with an electronic document delivery system window | General | 85 | Expired |
| US6651166B1 | Sender driven certification enrollment system | Electricity | 76 | Expired |
| US6748529B2 | Method and apparatus for effecting secure document format conversion | Electricity | 30 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.