Donaldson Co Inc
DonaldsonActive Patents
0
Total Holdings
14
Patent Holdings
Filter in Explorer →| Patent No. | Title | Status | Filing Date | Grant Date | Claims | Actions |
|---|---|---|---|---|---|---|
| US5545241A | Air cleaner | Expired / Lapsed | 1995-01-17 | 1996-08-13 | 27 | Details |
| US4720292B2 | US4720292B2 - - Google Patents | Expired / Lapsed | 1986-07-14 | 1994-02-22 | 0 | Details |
| US4891407A | Interpenetrating polymeric networks comprising polytetraflu… | Expired / Lapsed | 1988-05-20 | 1990-01-02 | 4 | Details |
| US4650506A | Multi-layered microfiltration medium | Expired / Lapsed | 1986-02-25 | 1987-03-17 | 24 | Details |
| US4443235A | Self-cleaning cabinet dust collector | Expired / Lapsed | 1982-10-01 | 1984-04-17 | 25 | Details |
| US4265762A | Filter assembly for use in the filtration of medical treatm… | Expired / Lapsed | 1978-11-24 | 1981-05-05 | 9 | Details |
| US3944265A | Exhaust system connector seal | Expired / Lapsed | 1974-11-15 | 1976-03-16 | 18 | Details |
| US3847819A | Seal for fluid filter | Expired / Lapsed | 1973-02-26 | 1974-11-12 | 4 | Details |
| US3712033A | Air cleaner with hinged side walls | Expired / Lapsed | 1971-06-01 | 1973-01-23 | 14 | Details |
| US3429108A | Automatic-unloading dust valve for centrifugal air cleaners | Expired / Lapsed | 1967-03-03 | 1969-02-25 | 0 | Details |
| US2684069A | Precision linear-fracture instrument for heart valve surgery | Expired / Lapsed | 1952-07-05 | 1954-07-20 | 0 | Details |
| US2359485A | Crankcase ventilating system | Expired / Lapsed | 1939-09-11 | 1944-10-03 | 0 | Details |
| US2299157A | Apparatus for silencing air intakes of internal combustion … | Expired / Lapsed | 1940-09-27 | 1942-10-20 | 0 | Details |
| US2120050A | Crankcase ventilating system | Expired / Lapsed | 1937-01-28 | 1938-06-07 | 0 | Details |