PRAYON TECHNOLOGIES
7Patents
7Active
7Granted
43Portfolio score
Filing activity: Mar 6, 2008 → Aug 10, 2018 · 2 expiring within 5 years
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US9371230B2 | Dihydrate-hemihydrate process for producing phosphoric acid | Chemistry; Metallurgy | 2 | Active |
| US8845990B2 | Method and device for producing polyphosphoric acid | Performing Operations; Transporting | 1 | Active |
| US10662072B2 | Method for producing calcium sulfate | Chemistry; Metallurgy | 1 | Active |
| US8206587B2 | Filtration cell and filtration device using such a cell | Performing Operations; Transporting | 0 | Active |
| US11407640B2 | Method for etching a phosphate source using acid | Chemistry; Metallurgy | 0 | Active |
| US9255006B2 | Method for producing phosphoric acid | Chemistry; Metallurgy | 0 | Active |
| US9828471B2 | Method and device for producing polyphosphoric acid | Performing Operations; Transporting | 0 | Active |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.