Did You Know...
...that Kleenex tissue was originally designed to be a gas mask filter? It was developed at the beginning of World War I to replace cotton, which was then in short supply as a surgical dressing.
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| Number | Title | Issue Date |
| 5827680 | Three reagent gram staining method and kit A method for Gram staining a specimen containing bacteria includes the steps of staining Gram positive bacteria in the specimen, fixing the stain to the Gram positive bacteria, and simultaneously decolorizing and counter-staining Gram negative bacteria in... | 10/27/1998 |
| 5188965 | Reagent source for chemiluminescent reactions, test kit, and method for use At least some of the reagents required for a chemiluminescent reaction are dried on a piece of a carrier material. The reagents are stable for extended periods of time, without refrigeration, in this form. The sheet of carrier material is of a shape and s... | 02/23/1993 |
| 5159197 | Luminescence test and exposure apparatus Apparatus for performing and measuring chemical reactions includes a reaction test apparatus having reaction wells wherein reactants are controllably mixed, and exposure apparatus which receives and positions the reaction test apparatus adjacent a photogr... | 10/27/1992 |
| 5096668 | Diagnostic test slide A diagnostic test slide for performing diagnostic tests for detecting the presence of microogranisms, enzymes or metabolites comprising a plastic film having a coating therein comprising a carrier and a reagent. The coated film is placed in a mount that i... | 03/17/1992 |
| 5063090 | Lecithin as a wettability enhancing coating for plastic Lecithin is coated onto the surface of plastics such as polystyrene and polyethylene to enhance the wettability of aqueous liquids to the plastic. In one application, plastic test wells are coated with lecithin to enhance the ability of liquids placed int... | 11/05/1991 |
| 4968625 | Centrifrugation vial and cluster tray A plurality of centrifugation vials having a common base form a cluster tray suitably shaped for receipt by a standard multiwell or cluster tray carrier for a centrifuge. The tray base is segmented into individual vial bases to facilitate separation of a ... | 11/06/1990 |
| 4912048 | Fluted culture vessel A culture vessel for improving culture or cell yield of anchored cell or suspension cultures has a fluted body wall to provide the vessel with internal ribbing. The internal ribbing of the vessel increases the surface area available for anchorage-competen... | 03/27/1990 |
| 4829006 | Centrifugation vial and cluster tray A plurality of centrifugation vials having a common base form a cluster tray suitably shaped for receipt by a standard multiwell or cluster tray carrier for a centrifuge. The tray base is segmented into individual vial bases to facilitate separation of a ... | 05/09/1989 |
