...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 |
| D654129 | Hockey stick with tapered hosel | 02/14/2012 |
| D650028 | Golf club shaft | 12/06/2011 |
| D641819 | Golf club shaft | 07/19/2011 |
| D641820 | Golf club shaft | 07/19/2011 |
| D618297 | Golf club shaft | 06/22/2010 |
| D606146 | Shaft grip combination for a putter | 12/15/2009 |
| D606147 | Golf club shaft | 12/15/2009 |
| D602108 | Golf club shaft | 10/13/2009 |
| D602107 | Golf club shaft | 10/13/2009 |
| D596254 | Golf club shaft | 07/14/2009 |
| D594920 | Hockey stick shaft | 06/23/2009 |
| D594075 | Golf club shaft | 06/09/2009 |
| D593173 | Shaft for golf club | 05/26/2009 |
| D589102 | Shaft for lacrosse stick | 03/24/2009 |
| D589101 | Shaft for lacrosse stick | 03/24/2009 |
| D581474 | Shaft for lacrosse stick | 11/25/2008 |
| D581475 | Shaft for lacrosse stick | 11/25/2008 |
| D579069 | Shaft grip combination for a putter | 10/21/2008 |
| D569940 | Golf shaft | 05/27/2008 |
| D565140 | Lacrosse shaft having varied cross-sectional shapes | 03/25/2008 |
| 7314067 | Design and manufacturing method for multi-material tube structures The present invention provides an improved tubular structure which uses the properties of different materials, such as stiffness, strength, and density are exploited in a manner which combines the most attractive characteristics of existing metal and composite tubes... | 01/01/2008 |
| D558289 | Sports shaft | 12/25/2007 |
| D556846 | Putter having a flat angled shaft and a single grip | 12/04/2007 |
| D556281 | Golf club shaft | 11/27/2007 |
| 7232386 | Hockey stick A composite hockey stick having a tubular hollow rectangular shaft and a blade is disclosed. The shaft comprises an inner layer and an outer layer, each of the inner and outer layers are formed of uni-directional substantially continuous fibers disposed in a hardene... | 06/19/2007 |
| 7207354 | Design and manufacturing method for multi-material tube structures The present invention provides an improved tubular structure which uses the properties of different materials, such as stiffness, strength, and density are exploited in a manner which combines the most attractive characteristics of existing metal and composite tubes... | 04/24/2007 |
| D540900 | Shaft grip combination for a putter | 04/17/2007 |
| D537498 | Golf club Shaft | 02/27/2007 |
| D534227 | Lacrosse shaft | 12/26/2006 |
| 7144343 | Hockey stick A hockey stick comprising a blade and a shaft adapted to being joined together. The blade portion having an upper portion and a lower portion and a face. The upper portion being comprised of a defined region having a reduced width dimension in a direction that exten... | 12/05/2006 |
| D529972 | Golf club shaft | 10/10/2006 |
| D529973 | Golf club shaft | 10/10/2006 |
| 7097577 | Hockey stick A hockey stick having a composite blade and a shaft is disclosed. The composite blade includes a heel section that is recessed relative to the front and back faces of the blade. The recessed heel section is configured to be received by a hockey stick shaft or an ada... | 08/29/2006 |
| D522079 | Golf club shaft | 05/30/2006 |
| D518541 | Golf club shaft | 04/04/2006 |
| D518128 | Pivoting golf club | 03/28/2006 |
| D517145 | Golf club shaft | 03/14/2006 |
| D507815 | Golf club shaft | 07/26/2005 |
| D505986 | Golf club shaft | 06/07/2005 |
| D504929 | Shaft for a hockey stick | 05/10/2005 |