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 |
| 7354070 | Book with rotating device A book with at least one rotating device that allows the user to answer various questions and check whether his responses are correct that also may be used as an entertaining or easy to use reference source. ... | 04/08/2008 |
| 7337946 | Device for resolving interpersonal relationship issues A device for resolving interpersonal relationship issues comprising: (a) a plurality of text sheets comprised of flexible, transparent material; (b) a rigid front cover; and (c) a rigid back cover; wherein each text sheet comprises an opaque band bearing text on eit... | 03/04/2008 |
| 6983887 | Promotional apparatus for calculating characteristics of subjects using two input variables An apparatus for determining a characteristic, such as body mass index number, for a person includes a housing having a panel with an edge portion, an intermediate portion, and a window formed in the intermediate portion. A member is movably secured to the housing a... | 01/10/2006 |
| 6926198 | Wheel calculator A wheel chart having at least one rigid disk formed by a compact disk which, in addition to having a mirrored or reflective layer capable of carrying reproducible information, has legible matter on an obverse side which cooperates with a member such as a transparent... | 08/09/2005 |
| 6769601 | Inhaler with a dose counter A multiple-dose powder inhaler comprising an inhaler body defining a medicament container, an air channel, a mouthpiece, a rotatable metering drum with one or more peripheral dosing recesses and a dose counter for indicating the number of metered doses of medicament... | 08/03/2004 |
| 6729536 | Combination golf ball marker and stroke indicator device A combination ball marker and stroke indicator device (10,20) has a first disc member (12,22) having a ground piercing pin (12b,22b) extending from a bottom face surface rotatably received through a pin receiving aperture ( | 05/04/2004 |
| 6712264 | Wheel calculator A wheel chart having at least one rigid disk formed by a compact disk which, in addition to having a mirrored or reflective layer capable of carrying reproducible information, has legible matter on an obverse side which cooperates with a member such as a transparent... | 03/30/2004 |
| 6698652 | Method and arrangement for operating a multistage counter in one counting direction A method of operating a multistage counter in only one counting direction includes the step of changing a counter reading of a single-stage auxiliary counter at given counter readings of the multistage counter. The single-stage auxiliary counter and the m... | 03/02/2004 |
| 5310994 | Fertility period calculator A fertility period calculator especially suited for third world countries, non-complex in operation, having two rotatable disks that require identification of numerals representing the days of the month and the average number of days in the user's menstru... | 05/10/1994 |
