...In 1790, the cost to obtain a patent was between $4 and $5.
Make the Most of Our Site
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest innovations by subscribing to an RSS feed.
Registered users: Manage your profile.
| Number | Title | Issue Date |
| 7063216 | Underdrain useful in the construction of a filtration device The present invention provides an underdrain having an improved spout. The underdrain has particular utility in the construction of both single-well and microarray filtration devices. In a principal embodiment, the underdrain is characterized by its incorporation of... | 06/20/2006 |
| 6911146 | Removable filters and water heating vessels incorporating such A filter (10) for use in a water heating vessel, such as an electric kettle, to filter sedimentary material in the water includes a scale collector (25), for example in the form of a compacted mesh block, carried on the filter. The block can be support... | 06/28/2005 |
| 6569329 | Personal water filter bottle system A bottle mountable filtration system typically includes a plurality of different filter elements or filtering and treatment elements having a substantially common central axis that are mounted to extend into a bottle from a cap with a manual valve. Mounti... | 05/27/2003 |
| 6485644 | Liquid dispenser with closed gravity filter and air breathing system A water dispenser supports a bottle having a neck closed with a holder accommodating a water filter. The cap member has an inwardly converging sleeve complementary to and engageable with the outer surface of the filter to retain the filter on the bottle n... | 11/26/2002 |
| 5932098 | Filtration apparatus for brewing and drinking coffee and like beverages and concurrently enabling a user to drink directly from the apparatus A filtration apparatus for brewing coffee, tea or the like therein and allowing a user to directly drink the brewed liquid from the same filtration apparatus. The apparatus comprises a vessel, such as a container or cup, and a double filter assembly insta... | 08/03/1999 |
| 5846418 | Point-of-use water treatment system The point-of-use water treatment system for treating water to be dispensed from a container includes a filter media positioned adjacent a water input opening of the container, through which water is filtered into the container. The filter media includes a... | 12/08/1998 |
| 4122978 | Pressurized package for dispensing a product in a finely dispersed spray pattern with little dilution by propellant A pressurized dispensing package includes a container in which the product to be dispensed and a gaseous propellant are stored. The product is dispensed through a discharge passage that extends from a control valve to a terminal orifice. A plural passage ... | 10/31/1978 |