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 |
| 6850816 | Method to activate a vending machine A method of activating a vending machine or automatic dispenser of products or services, comprising an authorization acceptance means that operates in the machine or dispenser and an authorization issuance means that operates in a computer or calculating device remo... | 02/01/2005 |
| 5966751 | Portable hair washing apparatus There is provided a new and useful portable hair washing apparatus. The apparatus comprises, in combination, a basin defined by a front wall, opposite facing side walls, a rear wall and a floor. The basin has neck support means and head support means, as ... | 10/19/1999 |
| 4783069 | Ski machine An exercising and training apparatus particularly for use for training for alpine skiing. The apparatus comprises a frame having a platform pivotably secured to the frame for movement from side-to-side through a convex arcuate path to provide lateral moti... | 11/08/1988 |
| 4117796 | Double sectioned tank A special type of tank that can be built into or placed in the cargo space of a ship to contain ballast water or another liquid without cross-contamination with the cargo residues, i.e. allowing for the carriage of segregated ballast in the cargo space. A... | 10/03/1978 |
| 4106832 | Electrical grounding clamp An improved means for grounding the electrical service in a building or for grounding motors and the like consisting of an electrical ground fixture comprising a metal pipe section and a securing means for a ground wire integrally associated with the meta... | 08/15/1978 |
| 4088653 | Tetrahydropyridyl derivatives Pharmaceutical compounds of the general formula ##STR1## and non-toxic pharmaceutically acceptable salts thereof, wherein R1 and R2 are selected from the group consisting of hydrogen, lower alkyl having from 1 to 4 carbon atoms,... | 05/09/1978 |
| 4068969 | Gutter attachment for asphalt spreader An attachment for one side of an asphalt paving machine to permit laying of a gutter adjacent to and integral with a roadway surface at the same time as the roadway surface is being paved. The device comprises an extension plate to be vertically oriented ... | 01/17/1978 |
| 4064782 | Electronic music display device An electronic digital display device for identifying musical notes comprising a series of manually operable on-off key selector switches, a series of manually operable on-off note selector switches, note indicator means visually associated with the note a... | 12/27/1977 |
| 4050257 | Demountable dock assembly An economical, lightweight, easily assembled and disassembled dock assembly. The elements of the assembly comprise a plurality of anchor posts, a connector to be secured about each of the anchor posts at a predetermined height, the connector having at lea... | 09/27/1977 |
| 4048634 | Electronic keyboard display device A small lightweight electronic device to indicate the note of a keyboard instrument represented by any musical interval in any key. The device has a series of on-off switches representing each of the desired musical keys and a series of switches represent... | 09/13/1977 |
| 4015359 | Hook baiting machine Apparatus for baiting fishing hooks attached at spaced intervals by snoods to a long line comprising guide means for receiving the lines, snoods and eyes of the hooks to channel them longitudinally and unobstructedly through said apparatus and restrict th... | 04/05/1977 |
| 4001054 | Process for making metal pipe Metal pipe or tubing having increased strength and toughness in a direction transverse to its axis, designed to prevent fractures and inhibit fracture propagation, for example in pipelines carrying fluids such as natural gas or oil. The pipes have localiz... | 01/04/1977 |
| 3999802 | Chair A chair having a unitary metal frame of the so-called runner type wherein there is along each side a runner joining the bottom of the front and rear legs of such respective side of the chair, the frame being fabricated from a length of metal rod, tube or ... | 12/28/1976 |
| 3963246 | Tone arm for record player An improved tone arm and suspension system therefor for record players. The tone arm is an articulated tone arm comprising a rigid main beam and a head assembly connected thereto at a pivot point. A control means, for moving the head assembly along a curv... | 06/15/1976 |
| 3955230 | Recreational buoyancy device A portable, recreational, buoyancy device comprising an integral rigid, ring-like floating unit having a central opening designed to accommodate the user's body, straps supporting the user in said opening, shoulder straps associated with the unit to suspe... | 05/11/1976 |
| 3946747 | Cigarette cutting tray An improved machine for rolling cigarettes of the type in which tobacco is compressed and rolled onto a piece of cigarette paper by a moving bight in an apron formed between a roller and a platform and is subsequently dropped onto a cutting surface of a c... | 03/30/1976 |
