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In 1608, Dutch eyeglass maker Hans Lipperhey filed the first patent for a working telescope. The patent was denied.
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| Number | Title | Issue Date |
| D503124 | Diamond cut | 03/22/2005 |
| D502666 | Diamond cut | 03/08/2005 |
| 6760949 | Rotating dish brush A rotating dish brush is described having a handle and a head. The handle includes a neck connected by a pin to the head. The rotating connection of the handle and head are limited by a pair of stops that also function as areas of force transfer from the handle to t... | 07/13/2004 |
| 6726877 | Silver alloy compositions Silver alloys having properties of fire scale resistance, reduced porosity and oxide formation and reduced grain size relative to traditional sterling silver alloys and useful work hardening performance are provided, comprising about 80-99.0% by weight silver, about... | 04/27/2004 |
| 6632197 | Clear view cannula There is disclosed a clear view cannula for use in surgical procedures having a tubular body, a cylindrical sleeve mounted about and slidably secured to the tubular body, and a plurality of shield members secured to the cylindrical sleeve. The cylindrical... | 10/14/2003 |
| 6588748 | Lighted dice An illuminated novelty dice display having two opaque hollow dies with non-opaque dots on the die faces. The dots are illuminated by light sources within the hollow portions. The light sources are energized by an electric cord which may also be used to ha... | 07/08/2003 |
| 6449985 | Diamond cut A mixed cut gemstone having a brilliant cut crown, a girdle and a step cut pavilion. The step cut pavilion contains four rib lines running from the girdle to a culet, which can be a line or a point. These rib lines subdivide the pavilion into four sides, ... | 09/17/2002 |
| 6241449 | Apparatus and method for unloading plastic containers stored in stacks of tiers A receiving frame, mounted on a horizontal platform includes a sub-frame that is tiltable, with respect to the platform, and has an elevator and elevator platform on its rear wall. The receiving frame receives a stack of tiers of plastic containers on a p... | 06/05/2001 |
| 6207193 | Transdermal drug delivery system There is disclosed a transdermal drug delivery system wherein a drug or therapeutic agent is encapsulated in a water soluble carbohydrate. The carbohydrate-encapsulated drug or therapeutic agent, in the form of finely divided particles, is suspended in a ... | 03/27/2001 |
| 6109453 | Portable television channel selection station with channel designator The instant invention provides a television channel selection station. The station includes a substantially rectangular planar member, an arrangement for attaching a program schedule guide having a column of television station call letter designation data... | 08/29/2000 |
| 5897533 | Catheter flow and lateral movement controller An arrangement for controlling the flow of blood between the annulus between a catheter and an elastomeric tube which encases it is provided. The arrangement also controls the ease of lateral movement of the catheter in relationship to the elastomeric tub... | 04/27/1999 |
