...Chester Carlson was a patent agent who tired of having to make multiple copies of patent applications using the only duplication method available at the time: carbon paper. In 1959 he came up with a new copying system and took it to IBM for evaluation. The "experts" at IBM determined potential sales to be only 5,000 units because people wouldn't want to use a bulky machine when they had carbon paper. Carlson's invention was the xerography process, the company founded on the system is Xerox.
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| Number | Title | Issue Date |
| 6460933 | Multiply adjustable low back support assembly for a wheelchair A wheelchair back assembly is provided which has a back plate held in position relative to upright wheelchair cane members by opposed independent mounting assemblies. The mounting assemblies include a support bar which carries a bracket attached to the ba... | 10/08/2002 |
| 6443953 | Self-aligning cap nut for use with a spinal rod anchor A spinal implant system is provided having a stabilization rod, a plurality of bone anchors which could be either hooks or screws and which have an internal recess that defines a rod-receiving channel. Sidewalls of the anchor project beyond the recess, an... | 09/03/2002 |
| 6436315 | Highly conductive molding compounds for use as fuel cell plates and the resulting products A conductive polymer is disclosed which is suitable for use in applications which require corrosion resistance including resistance to corrosion when subjected to acidic flow at temperature ranging from -40 to 140 degrees Fahrenheit and which can be molde... | 08/20/2002 |
| 6429174 | Large strongly linked superconducting monoliths and process for making the same A process which relies on a joining technique between two individual strongly linked superconductors is disclosed. Specifically, this invention relates to fabrication of single domains of YBa2 Cu3 Ox or YBa2 Cu | 08/06/2002 |
| 6425597 | Lightweight wheelchair frame A wheelchair suspension system comprises a suspension assembly disposed adjacent to each wheel of the wheelchair, and attached to an interconnecting the axle of the wheels to the wheelchair frame. Each of the suspension assemblies includes a front bracket... | 07/30/2002 |
| 6302888 | Locking dovetail and self-limiting set screw assembly for a spinal stabilization member A spinal implant assembly is provided which has a stabilizer rod clamped into position within an anchor by means of a sliding closure member including a mating set screw or hook. The exterior faces of the anchor are contoured to optimize interface in the ... | 10/16/2001 |
| 6258754 | Large, strongly linked superconducting monoliths and process for making the same A process which relies on a joining technique between two individual strongly linked superconductors is disclosed. Specifically, this invention relates to fabrication of single domains of YBa2 Cu3 Ox or YBa2 Cu | 07/10/2001 |
| 6257664 | Multiple adjustable back assembly for use with wheelchair A wheelchair back assembly is mounted from the vertical post of a wheelchair. The assembly has a back member comprising one or more rigid shells which are mounted by laterally extending adjustable clamping members. These clamping members permit a variety ... | 07/10/2001 |
| 6224602 | Bone stabilization plate with a secured-locking mechanism for cervical fixation A bone plate assembly is provided having a fixation plate held in position in a bone by a plurality of fasteners. The fasteners extend through holes in the bone plate to engage the bone below. Further, the assembly includes a locking plate which is secure... | 05/01/2001 |
| 5961561 | Method and apparatus for remote maintenance, troubleshooting, and repair of a motorized wheelchair A method and apparatus for the remote maintenance, troubleshooting, and/or repair of electric or motorized wheelchairs is disclosed. A wheelchair diagnostic system includes a data communications network, a motorized wheelchair having a controller associat... | 10/05/1999 |
| 5933891 | Wheelchair seating system including trapezoidally sectioned fluid bag The present invention relates to a seat cushion assembly for use, in particular, in a wheelchair. The assembly includes a sculpted or molded foam base having exterior sidewalls profiled to accommodate a wheelchair frame, and a seating surface to provide s... | 08/10/1999 |
| 5924638 | Coupling arrangements for fishing reels A unidirectional coupling arrangement for sense-selectively coupling the rotation of a fishing reel spool to a braking or drag arrangement. First and second relatively rotatable elements of the coupling arrangement connect by interlocking teeth which on t... | 07/20/1999 |