Famous Patents
Felix Hoffmann, a German chemist, was searching for something to relieve his father's arthritis. In doing so, he "rediscovered" acetylsalicylic acid and in 1900, patented a stable process for developing it. Hence, we have aspirin.
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| Number | Title | Issue Date |
| 6753663 | Electric motor controlled as an electroacoustic transducer An appliance for personal use such as a toothbrush, an oral irrigator, a shaver, or a kitchen machine, with a driving mechanism constructed as an electric motor and a control stage that supplies energy to the electric motor. When the electric motor is off, the contr... | 06/22/2004 |
| 6574830 | Vacuum operated cleaning accessory with roller brush A vacuum cleaner accessory that is used in cleaning heat exchanger units for heating and cooling machinery, wherein the invention comprises of a wand-like body forming an interior that is continuously connected at a rear open end with a vacuum source and ... | 06/10/2003 |
| 6565276 | Electrically driven hand-held device for eyelash mascara application This invention provides a mascara and a like cosmetics application onto the eyelashes. An improved electrically driven hand-held device for eyelash mascara application includes a mascara container coupled with the brush handle, including a power supply el... | 05/20/2003 |
| 5115530 | Rotary toothbrush An axis rotary toothbrush is provided and consists of an elongated shaft having a distal portion rotatably positioned within a handle so that a proximal portion of the shaft will extend outwardly therefrom. A bristle head is formed about the free end of t... | 05/26/1992 |
| 4442565 | Portable pocket clothes brush A brush (10) is provided. The brush (10) includes a housing (12) which includes an aperture (28). Bristles (42) are mounted within the housing (12) and extend through the aperture (28). A cover (50) is provided and includes an aperture (52). Cover (50) is... | 04/17/1984 |
| 4377013 | Rotatable hair brush A rotary brush or other rotary implement constructed in accordance with the instant invention includes a first fixed handle means and a second movable handle means hinged to the fixed handle and operable by squeezing. The brush head to be rotated is mount... | 03/22/1983 |
