Famous Patents
Felix Hoffmann, a German chemist, was searching for something to relieve his father's arthritis. In doing so, he "rediscovered" acetylsalicylic acid and in 1900, patented a stable process for developing it. Hence, we have aspirin.
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| Number | Title | Issue Date |
| 7347467 | Fifth wheel hook/tandem hook release tool A multi-purpose, hand-operated tool for use in release of a fifth wheel from a pulling or towing vehicle, for use in release of tandem pins allowing a tandem tire assembly to slide along an undercarriage of a trailer for proper weight distribution of a load, for use... | 03/25/2008 |
| 7162827 | Fisherperson's tool for using slotted weights with a fishing line The invention is a tool for use by fisherpersons to remove a split shot weight from a fishing line. The tool includes a finger sheath, a finger retainer and curved blade attached to the finger sheath. In one preferred embodiment the finger sheath and finger retainer... | 01/16/2007 |
| 7159260 | Multi-purpose trucker's power-puller tool A multi-purpose trucker's power puller tool with a hook rod that slides in the bore of a handle, and a weighted head at an end of the handle. The weighted head provides momentum to the hooked end for yanking free stuck objects, such as a truck's fifth wheel pin. The... | 01/09/2007 |
| 5803518 | Tandem axle trailer pin leverage handle system A new Tandem Axle Trailer Pin Leverage Handle System for facilitating the extraction of a tandem axle trailer pin for repositioning of the axles of the tandem axle trailer. The inventive device includes an elongated handle, a first and second plate secure... | 09/08/1998 |
| 5129529 | Uncoupler lever with a wedge lock An adjustable uncoupling lever with a shiftable wedge lock. The lever includes two longitudinally shiftable rods having parts spaced from one another. The wedge lock is driven between the two rod parts to secure the rods together.... | 07/14/1992 |
| 5123553 | Disconnect tool for use with high voltage equipment A disconnect tool for use with a plurality of vehicles powered by a source of high voltage electricity and method of disconnecting high voltage equipment, which disconnect tool comprises a disconnect means for moving a coupling between a coupled position ... | 06/23/1992 |
| 4802391 | Tool for recreational vehicle A hand tool for use to assist in connecting and operating the sewer hose and sewer gate valve of a recreational vehicle is disclosed. The tool is in the form of an elongated rod having a handle at one end and a two prong hook at the other end. An upright ... | 02/07/1989 |
| 4531274 | Unlatching tool to uncouple semi-trailer trucks An unlatching tool to uncouple the trailer from the tractor of semi-trailer truck rigs, comprising a foldable elongated bar having a hand grasp at one end and a combination safety release arm plus unlatching hook at the opposite working end. The safety re... | 07/30/1985 |
