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 |
| 6221656 | Compost, silage, solar heating apparatus An apparatus combining various phases of solar heat influence upon a transversing airstream. Solar heat combines with compost's bacterial-generated heat within the apparatus. Solar collector mechanism and compost cooperate with silage for regulating more ... | 04/24/2001 |
| 6126122 | Double ratchet arm pipe clamp A double ratchet arm pipe clamp includes a pair of elongated ratchet arms extending outward from a base member with each ratchet arm including a plurality of ratchet teeth. A keeper block is adapted to receive the ratchet arms through a pair of apertures ... | 10/03/2000 |
| 6106493 | Shoulder stabilizer A brace for supporting a wearer's shoulder joint during movement is made of elastic material and comprises a torso strap, a shoulder strap, upper and lower stabilizing straps and a vertical support strap. The torso strap is securable around the torso of t... | 08/22/2000 |
| 6094828 | Outer seam wall can opener An improved outer wall can opener includes a retractable and extendable traction wheel which selectively grips a can to be opened between it and an outer seam wall cutting wheel. The cutting wheel is a ring which is supported by a generally cylindrical st... | 08/01/2000 |
| 6088862 | Hammer with accessories A hammer with accessories having a head, a handle, and a measuring tape. The head has a poll, a striking surface, and a claw to remove old nails and other embedded objects. The head also has a flattened top so that it may be used with a level embedded in ... | 07/18/2000 |
| 6069555 | Facility access system and method with disabled and user assistance A facility access system includes a system microprocessor and input and output subsystems. The input subsystem can include switching devices connected in a parallel configuration for actuating the system microprocessor in a sequencing mode of operation. I... | 05/30/2000 |
| 6065394 | Easily cleanable folding pan An improved, easily cleanable folding pan with a continuous cooking surface includes a pair of pan sections with generally planar cooking surfaces joined at the perimeter in side-by-side relationship by a pair of upstanding hinges. The hinges permit pivot... | 05/23/2000 |
| 6058745 | Cover for padlocks A padlock cover assembly for use in latching and locking doors includes a cover with a peripheral wall. The cover is pivotally mounted to a pivot base which is pivotally mounted to a first door member by a pivot pin. The cover is pivotal relative to the p... | 05/09/2000 |
| 6055771 | Germination of livestock feed grains using effluent from livestock waste digestion A system for germinating livestock feed grains and growing sprouts therefrom using a plant nutritive effluent from a manure treatment process includes a germination tray conveyor having an endless sequence of trays thereon, a grain deposit station at one ... | 05/02/2000 |
| 6043889 | Misalignment detection apparatus and method A rail misalignment detection system for use in verifying whether fixed span and moveable span rails on a fixed span and a moveable span of a rail bridge, extend within an acceptable range of misalignment when the moveable span is positioned in a closed a... | 03/28/2000 |
| 6042447 | Hand operated animal call A hand operated animal call includes a vibrating reed sound generator positioned to vibrate within a hollow reed housing. The reed housing is positioned within an air impervious pouch which has a restricted opening. An elongate sound modifying tube is att... | 03/28/2000 |
| 6024348 | Adjustable clamping stand for supporting automobile panels A stand for supporting an automobile body panel having a peripheral edge for inspection and repair comprises two sets of clamping members secured on opposite ends of two clamping assemblies which are pivotally mounted to the top of a vertically oriented t... | 02/15/2000 |
| 6021720 | Stand for supporting and securing items such as a portable computer A stand for supporting and securing an item such as a portable computer comprises a hinged leaf assembly with adjustably positionable clamping members. The clamping members are slidingly secured along outer edges of hingedly connected leaves of the leaf a... | 02/08/2000 |
| 6010520 | Double tapered esophageal dilator A double tapered esophageal dilator bougie is designed to be disposable after a single use, is radiopaque, and is tapered at both ends to different respective dilator circumferences. Each end of the dilator bougie tapers to two different French sizes avai... | 01/04/2000 |
| 6007422 | Universal damper mounting system and method A universal damper mounting system and method for mounting a damper within an opening in a wall includes the use of a plurality of metal straps, each of which is initially formed into an roughly S shape with one leg being longer than the thickness of a wa... | 12/28/1999 |
| 6006696 | Clam shell style large hay bale feeding apparatus A clam shell style large hay bale feeder includes a rectangular frame supporting a bale holding clam shell structure with two opposing sides formed by respective sets of steel straps. The sides are attached to the support frame such that they can fold inw... | 12/28/1999 |
| 5997047 | High-pressure flexible self-supportive piping assembly A high-pressure, flexible, self-supportive piping assembly includes a jointed conduit formed by a plurality of ball and socket joint elements, a flexible internal conduit extending through the jointed conduit, an external sheath, and fittings at opposite ... | 12/07/1999 |
| 5984019 | Hitching device for attachment to a tractor A hitching device for attachment to a three-point hitch, or to a quick-attaching coupler on a three-point hitch, has a frame removably coupled to the draft links of the three-point hitch or hooks of a quick-attaching coupler. The frame has a horizontal me... | 11/16/1999 |
| 5984368 | Patient condition and pain location and intensity communication apparatus and method The present invention comprises a preprinted chart, or, in the case of software, a programmed screen display, on which is displayed front and back silhouettes of a patient. Alongside the silhouettes are provided a number of series of icons which illustrat... | 11/16/1999 |
| 5980740 | Storm drain collection box filtration system A filtration system for storm drain collection boxes includes a helical coil frame, open at both ends, which coil frame is attached at an exit end to a vertical exit side wall of the collection box with the exit end aligned with a collection box outlet op... | 11/09/1999 |
| 5978088 | Flaw highlighting light panel lens An improved lens for highlighting dents and including a narrow reference strip which is luminescent or of intensified light. A preferred embodiment of the lens having at least one light colored translucent strip adjacent at least one dark colored opaque s... | 11/02/1999 |
| 5967403 | Remailable envelope and method for making a remailable envelope from a single blank A remailable envelope is formed from a single paper blank. The paper blank is first cut to yield a cut blank with an upper portion shaped as an originating legal sized envelope blank with a first back panel and a first front panel with a pair of side flap... | 10/19/1999 |
| 5967947 | Isometric wrist exercise device An isometric wrist exercise device which is useful for strengthening the wrist and for treating or alleviating symptoms associated with carpal tunnel syndrome device includes a wrist brace which adjustably encircles a user's wrist. The brace is attached t... | 10/19/1999 |
| 5967198 | Tire evacuation and inflation apparatus and method A tire inflation apparatus and method involves first evacuating a seated pneumatic tire via a vacuum pump and then inflating the tire with a purified, dried gas under pressure, such as pressurized nitrogen, without allowing any ambient air to reenter the ... | 10/19/1999 |
| 5965608 | Xylomollin derivatives for use as insect feeding deterrents Synthetic derivatives or intermediates of xylomollin are identified which can be used as insect feeding deterrents. The identified derivatives or intermediates exhibiting antifeeding activity include glutaraldehyde and carbocyclic or heterocyclic dialdehy... | 10/12/1999 |
| 5961184 | Frame-type chair A frame-type chair includes a frame having a base subframe and a back subframe. A seat is mounted on the base by sockets formed in the seat which receive frame ends in heat-stake and telescopic relationships. A back is mounted on the back subframe and inc... | 10/05/1999 |
| 5950699 | Brush saw attachment for brush rake attachment for front end loaders and the like A land clearing apparatus comprises a brush saw which is removably attachable to a brush rake which is in turn removably attachable to a vehicle such as a front end loader or a bulldozer. The brush saw comprises a wedge shaped blade with a clamping assemb... | 09/14/1999 |
| 5934578 | Rotary drum bale cutter with reprocessing chamber A round bale cutter has an open bale loading side and a cut hay exhaust side with a bale receiving area on a floor in between. The cutter includes a housing with a gap on the hay exhaust side extending the length of the machine just above the floor and a ... | 08/10/1999 |
