Did You Know...
...that one person who claimed to be the inventor of the television is Russian emigre Vladimir Zworykin? In 1929 David Sarnoff, founder of RCA, asked Zworykin what it would take to develop TV for commercial use. He said: a year and a half and $100,000. In reality, it took 20 years and $50 million! Before his death in 1982 at the age of 92, Zworykin said of his invention: "The technique is wonderful. It is beyond my expectations. But the programs! I would never let my children even come close to this thing."
PatentStorm News
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 |
| 8070618 | Golf putting practice device and methods of practicing putting thereof A golf putting practice device/simulator and ball return with no moving parts, and method for a golfer to practice putting a golf ball in which the device is located in close proximity to the golfer and the intended target can be of any normal putting distance allow... | 12/06/2011 |
| 7338385 | Golf assisting device The present invention is a putting tool to assist a golfer. The putting tool comprises a box like structural housing having a cavity therein. The housing is further defined by a top wall, bottom wall, back wall, first side wall, and an opposing second side wall. The... | 03/04/2008 |
| 7293776 | Practice target for sport projectiles A target for practicing aiming sport or game projectiles, such as balls, hockey pucks, arrows, etc., is formed of a large, flexible sheet whose upper edge is temporarily secured to the lower edge of a conventional garage door when the door is lowered. The sheet is d... | 11/13/2007 |
| 7172521 | Soccer training aide A device for teaching the basic kicks of soccer to students of the game. The device has a mat portion with a ball support thereon, to raise the ball to the elevated position it would be in when laying on grass. The mat includes an alignment arrow to direct the appro... | 02/06/2007 |
| 7118487 | Inflatable sport ball arresting structure A sport ball arresting structure may be characterized in one aspect as including an inflatable quadra-pod mounted on a substantially rectangular flexible planar base for placement on the ground. The quadra-pod includes four legs formed, when the quadra-pod is inflat... | 10/10/2006 |
| 7052408 | Multipocket golf net assembly The golf net assembly for adapting an existing golf net assembly to an improved practice net includes a non-collapsing light framework for providing a shape; fabric assembly with a center target sheath secured to the light framework, and flexible connectors fixedly ... | 05/30/2006 |
| 7021630 | Portable ball retriever A portable ball retriever comprises a first member forming a first closed loop, a second member forming a second closed loop with the first member foldably attached to the second member, supports fitted between the first and second members to sustain the first membe... | 04/04/2006 |
| 6939238 | Golf putting training device A golf putting training device is described and which includes an elongated frame having opposite ends and sides, and defining a channel therebetween the opposite ends and sides; and a bridge extending between the opposite sides and located intermediate the opposite... | 09/06/2005 |
| 6939255 | Collapsible batting cage A collapsible batting cage having a support base (e.g., a front end, a back end and opposite sides) and a support frame to which a protective netting is attached. The support frame includes a plurality of U-shaped frame members that are pivotally connected to the su... | 09/06/2005 |
| 6461247 | Golf putting practice apparatus A golf putting practice apparatus for improving one's stroke and accuracy in putting a golf ball with a putter, comprising: two cord positioning and holding members, each member having an inner face portion, and adapted to hold portions of the length of c... | 10/08/2002 |
| 6352480 | Sports practice net A sports practice net assembly for stopping the flight of a projectile such as a golf ball, comprises a pair of side frame members with a central frame member disposed between them. The side frame members are preferably formed as closed loops. The central... | 03/05/2002 |
| 6248022 | Golf putt improvement system A golf practice system is provided including a supporting surface having at least one set of concentric rings. Also included is a base positioned on the supporting surface in spaced relationship with the concentric rings.... | 06/19/2001 |
| 5672114 | Guiding device for putting practice A guiding device for putting practice having a base plate, a pad, a golf supporting plate, a cover member, two screw sleeves, a large bolt, a small bolt, an inverted U-shaped fending rod, and an engaging sleeve is disclosed. The base plate has left and ri... | 09/30/1997 |
| 5580320 | Target green for golf practice An artificial golf green is designed for use at driving ranges. The target green structure is formed at an incline to provide users of the golf range the appearance of a much larger target surface due to the perspective effects when viewing an inclined ob... | 12/03/1996 |
| 5467990 | Ambidextrous golf driving net A practice net for arresting golf balls hit from a golf tee on a practice mat. The device includes a frame having a first net and a second net relatively, orthogonally oriented, with a practice mat attached between the nets. A left-handed tee is positione... | 11/21/1995 |
| 5452896 | Sports practice cage A sports practice cage is disclosed. U-shaped side frames attach to a solid flat cage base, and horizontal poles connect the side frames to form the basic cage frame. Netting is suspended from the cage frame, with one side of the cage left open, so that a... | 09/26/1995 |
| 5409230 | Booth for practicing golf indoors There are many constructions for permitting one to practice portions of the game of golf indoors. However golf requires a different types of strokes to be performed proficiently, and practicing all the types of strokes indoors, and in a sequence which sim... | 04/25/1995 |
| 5386997 | Portable golf practice apparatus A golf practice apparatus includes an upper platform having a tee and a target located forwardly of the tee; a golf ball arranged at the tee above the platform for striking towards the target area, the golf ball having one end of a tether attached thereto... | 02/07/1995 |
| 5261670 | Putting stroke developer A putting stroke developer is comprised of a target element that may be used with and without a putting surface element. Common to all embodiments of the inventive target element is the fact that the target element has a base surface that rests upon a put... | 11/16/1993 |
| 5100147 | Putting stroke developer A putting stroke developer is comprised of a target element that may be used with and without a putting surface element. Common to all embodiments of the inventive target element is the fact that the target element has a base surface that rests upon a put... | 03/31/1992 |
| 5018731 | Golf ball driving practice apparatus A golf ball driving practice apparatus comprised of a rigid framework assembly which supports a conical net into which a player practice drives golf balls off a tee provided in a platform at the open end of the conical net, and being also provided with me... | 05/28/1991 |
| 4886274 | Portable practicing putting green A portable practicing putting green 44 having a putting surface band 11, a cup 91 at one end of it, a square angle 22 on the other end of it, and a rebound bar 32 replacably put on either side of the square angle or near the hole, for rebounding golf ball... | 12/12/1989 |
| 4564198 | Apparatus for use in playing a ball game Apparatus for use in playing a ball game, comprising a frame having a base and an upwardly extending perimeter wall which substantially defines the perimeter of the base. The base is provided with a plurality of apertures or holes capable of receiving a b... | 01/14/1986 |
| 4538814 | Trifunctional golfing cage The present invention is a trifunctional golfing cage having an elongated flat playing surface base with a tee off area at its front, a free standing frame, a first netting connected to the frame so as to enclose sides, back and top areas of the base, a s... | 09/03/1985 |
| 4368888 | Golf putting device An elongate putting strip having a rebound block at one end thereof with a number of rebound faces at different widths arranged therearound. The block may be rotatably adjusted to present any of its faces to the length of the strip to require different de... | 01/18/1983 |
