Patent Explorer
Browse, filter, and analyze 3 patents across global jurisdictions.
| Patent Number | Title | Assignee | Status | Filing Date | Grant Date | Expires | Remaining | Claims | Actions |
|---|---|---|---|---|---|---|---|---|---|
| US5032002A | Write with light optical notching filter | Grumman Corp | Expired / Lapsed | 1989-02-14 | 1991-07-16 | 2009-02-14 | 0.0 yrs | 7 | |
| US4645300A | Fourier plane recursive optical filter | Grumman Corp | Expired / Lapsed | 1984-07-30 | 1987-02-24 | 2004-07-30 | 0.0 yrs | 12 | |
| US3093998A | Method for testing fluids for particle contamination | Grumman Corp | Expired / Lapsed | 1959-11-06 | 1963-06-18 | 1979-11-06 | 0.0 yrs | 1 |