Knowlton; Christopher M.
Patent Applications and Registrations
Patent applications and USPTO patent grants for Knowlton; Christopher M..The latest application filed is for "floor scrubber cleaning sytem using a heat exchanger and pressure valve for controlling dispensing fluid volume and temperature".
- Knowlton; Christopher M. - Pingree Grove IL
- Knowlton; Christopher M. - Pinehurst NC
- Knowlton; Christopher M. - West End NC
- Knowlton; Christopher M. - Toledo OH
| Patent | Date |
|---|---|
| Floor Scrubber Cleaning Sytem Using A Heat Exchanger And Pressure Valve For Controlling Dispensing Fluid Volume And Temperature App 20210137340 - Sanchez; Jonathan ; et al. | 2021-05-13 |
| Disc scrub brush driver Grant D913,612 - Knowlton March 16, 2 | 2021-03-16 |
| Floor Scrubber Cleaning System For Heating A Cleaning Solution App 20200129033 - Knowlton; Christopher M. | 2020-04-30 |
| Power brush/broom driver hub assembly Grant D880,266 - Knowlton | 2020-04-07 |
| Floor scrubber dry sweep apparatus Grant 9,924,844 - Person , et al. March 27, 2 | 2018-03-27 |
| High dump floor scrubber sweeper Grant 9,649,002 - Pollack , et al. May 16, 2 | 2017-05-16 |
| System for Disinfecting Shopping Carts App 20050121057 - Knowlton, Christopher M. ; et al. | 2005-06-09 |
| Multi-function, battery-powered, rider cleaning machine Grant 6,357,070 - Venard , et al. March 19, 2 | 2002-03-19 |
| Squeegee adjustment method and apparatus Grant 6,073,304 - Knowlton , et al. June 13, 2 | 2000-06-13 |
| Floor cleaning apparatus with two brooms Grant 5,802,665 - Knowlton , et al. September 8, 1 | 1998-09-08 |
| Articulated floor scrubber Grant 5,742,975 - Knowlton , et al. April 28, 1 | 1998-04-28 |
| Floor scrubber Grant D382,383 - Knowlton , et al. August 12, 1 | 1997-08-12 |
| Floor cleaning apparatus with flap having wear indicator Grant 5,630,246 - Knowlton , et al. May 20, 1 | 1997-05-20 |
| Floor cleaning apparatus with squeegee mounting system Grant 5,628,086 - Knowlton , et al. May 13, 1 | 1997-05-13 |
| Floor cleaning apparatus with slidable flap Grant 5,611,108 - Knowlton , et al. March 18, 1 | 1997-03-18 |
| Floor cleaning apparatus with pre-filter Grant 5,608,947 - Knowlton , et al. March 11, 1 | 1997-03-11 |
| Floor cleaning apparatus Grant 5,555,596 - Knowlton , et al. September 17, 1 | 1996-09-17 |
| Floor cleaning apparatus Grant 5,485,653 - Knowlton , et al. January 23, 1 | 1996-01-23 |
| Steering mechanism for a cleaning vehicle Grant 5,467,500 - O'Hara , et al. November 21, 1 | 1995-11-21 |
| Floor scrubber Grant 5,265,300 - O'Hara , et al. November 30, 1 | 1993-11-30 |
| Container dumping system Grant 5,027,464 - Knowlton July 2, 1 | 1991-07-02 |
| Riding sweeper with high dump mechanism Grant 4,363,151 - Knowlton December 14, 1 | 1982-12-14 |
| Sweeper hopper with filter assembly Grant 4,328,014 - Burgoon , et al. May 4, 1 | 1982-05-04 |
| Surface cleaning machine Grant 4,317,246 - Knowlton March 2, 1 | 1982-03-02 |
| Riding sweeper Grant 4,219,901 - Burgoon , et al. September 2, 1 | 1980-09-02 |
| Riding sweeper Grant 4,173,052 - Burgoon , et al. November 6, 1 | 1979-11-06 |
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