William F. Semple, a dentist, was awarded the first US Patent on chewing gum in 1869. His recipe contained powdered chalk.
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| Number | Title | Issue Date |
| 7674632 | Method and composition for homogeneous multiplexed microparticle-based assay A method and composition for detecting and measuring analytes, such as antibodies, which are capable of binding with certain binding partners such as antigens. A homogenous assay is performed in the presence of free unbound antibodies. Such a homogeneous assay testi... | 03/09/2010 |
| 7608589 | Peptidyl diacylglycerides Peptide and peptides that may be covalently linked to a lipid and methods of using such peptides and lipopeptides to prevent or treat disease are disclosed herein. ... | 10/27/2009 |
| 7524464 | Smart disposable plastic lab-on-a-chip for point-of-care testing Disclosed herein is a fully-integrated, disposable biochip for point-of-care testing of clinically relevant parameters. Specifically, in accordance with an embodiment of the present invention, the biochip is designed for POCT (point-of-care-testing) of an array of m... | 04/28/2009 |
| 7476326 | On-chip sample preparation for whole blood analysis A novel filter-less separation technique for separating suspended particles from a solution is disclosed. More specifically, an on-chip bioparticle separator is disclosed, which relies on the differential force exerted by application of a series of high magnitude, s... | 01/13/2009 |