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Actor Zeppo Marx patented a "Cardiac Pulse Rate Monitor" in 1969.
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| Number | Title | Issue Date |
| 7940818 | Passively mode locked quantum cascade lasers This invention relates to a self-induced transparency mode-locked quantum cascade laser having an active section comprising a plurality of quantum well layers deposited in alternating layers on a plurality of quantum barrier layers and form a sequence of alternating... | 05/10/2011 |
| 7592183 | Amine detection method and materials Compounds linked to a solid support through a divalent linker moiety are disclosed. In particular, compounds such as 1-hydroxybenzotriazole-6-carboxylic acid are directly linked to the support under mild conditions (i.e., in aqueous or organic solvents at neutral pH... | 09/22/2009 |
| 7390462 | Ratiometric fluorescent pH sensor for non-invasive monitoring The present invention provides ratiometric fluorescent pH sensors for non-invasive, continuous monitoring of pH in such applications as fermentation processes. The ratiometric fluorescent pH sensors comprise a fluorescent dye that exhibits a shift in excitation wave... | 06/24/2008 |
| 7288532 | Modified chitosan polymers and enzymatic methods for the production thereof The present invention is directed to homogeneous phase enzyme-catalyzed processes for producing modified chitosan polymers or oligomers. An enzyme is reacted with a phenolic substrate in the presence of a chitosan polymer or oligomer to produce a modified chitosan p... | 10/30/2007 |
| 7229835 | Amine detection method and materials A compound linked to a solid support (R) through a divalent linker moiety (X) and which is represented by the following formula: is disclosed. In particular, the 1-hydroxybenzotriazole-6-carboxylic acid is direct... | 06/12/2007 |
