Hougen; Everett D.
Patent Applications and Registrations
Patent applications and USPTO patent grants for Hougen; Everett D..The latest application filed is for "portable personal breathing apparatus and method for exercising the lungs".
- Hougen; Everett D. - Flint MI
- Hougen; Everett D. - Flushing MI
- Hougen; Everett D. - Chicago IL
| Patent | Date |
|---|---|
| Portable personal breathing apparatus and method for exercising the lungs Grant 6,500,095 - Hougen December 31, 2 | 2002-12-31 |
| Portable respiratory exercise apparatus and method for using the same Grant 6,083,141 - Hougen July 4, 2 | 2000-07-04 |
| Portable, personal breathing apparatus Grant 5,910,071 - Hougen June 8, 1 | 1999-06-08 |
| Compact lung exercising device Grant 5,899,832 - Hougen May 4, 1 | 1999-05-04 |
| Portable personal breathing apparatus and method of using same Grant 5,658,221 - Hougen August 19, 1 | 1997-08-19 |
| Apparatus and method for cutting holes Grant 5,145,296 - Hougen September 8, 1 | 1992-09-08 |
| Multidirectional cutting tool Grant 5,094,573 - Hougen March 10, 1 | 1992-03-10 |
| Annular cutter having radial clearance Grant 4,871,287 - Hougen October 3, 1 | 1989-10-03 |
| Annular hole cutter Grant 4,632,610 - Hougen December 30, 1 | 1986-12-30 |
| Annular cutter Grant 4,557,641 - Hougen December 10, 1 | 1985-12-10 |
| Annular cutter Grant 4,538,944 - Hougen September 3, 1 | 1985-09-03 |
| Annular hole cutter Grant 4,452,554 - Hougen June 5, 1 | 1984-06-05 |
| Annular hole cutter Grant 4,322,187 - Hougen March 30, 1 | 1982-03-30 |
| Annular hole cutter Grant 4,322,188 - Hougen March 30, 1 | 1982-03-30 |
| Accessory support plates for a magnet base drill Grant RE30,519 - Hougen February 17, 1 | 1981-02-17 |
| Machine for cutting holes with annular cutters Grant 4,204,783 - Hougen May 27, 1 | 1980-05-27 |
| Accessory support plates for a magnet base drill Grant 4,047,827 - Hougen September 13, 1 | 1977-09-13 |
| Magnetic drill Grant 3,969,036 - Hougen July 13, 1 | 1976-07-13 |
| Annular Hole Cutter Grant 3,860,354 - Hougen January 14, 1 | 1975-01-14 |
| Arbor For An Annular Hole Cutter Grant 3,825,362 - Hougen July 23, 1 | 1974-07-23 |
| Annular Hole Cutter Grant 3,765,789 - Hougen October 16, 1 | 1973-10-16 |
| Hole Saw Grant 3,648,508 - Hougen March 14, 1 | 1972-03-14 |
| Hole Cutter Grant 3,609,056 - Hougen September 28, 1 | 1971-09-28 |
| Device For Driving A Hole Cutter Grant 3,584,534 - Hougen June 15, 1 | 1971-06-15 |
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