Did You Know...
...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.
PatentStorm News
Make the Most of Our Site
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest innovations by subscribing to an RSS feed.
Registered users: Manage your profile.
| Number | Title | Issue Date |
| 4842254 | Apparatus for purifying lithium The invention relates to an apparatus for purifying lithium, formed by a sealed enclosure comprising a heated upper portion 1 provided with a container 9 in which the molten lithium 11 is agitated and from which the impurities evaporate, and a cooled lowe... | 06/27/1989 |
| 4738716 | Process for purifying lithium The invention relates to a process for purifying lithium in which the lithium is melted in an inert atmosphere. The molten lithium is then maintained at a temperature of 400° to 700° C. under a pressure of less than 10 Pascal while agitating the molten ... | 04/19/1988 |
| 4317802 | Process for separating molybdenum and/or other metals contained in residual organic effluents The process relates to the separation of the molybdenum and/or tungsten, titanium, vanadium, niobium or tantalum present in the form of organometallic compounds in residual effluents. It is applicable, in particular, to the effluents originating from the ... | 03/02/1982 |
| 4182747 | Process for preparation of anhydrous metallic chlorides from waste catalysts A process is disclosed for recovering metallic constituents of spent or waste catalysts containing metallic compounds fixed on an aluminous support. The process is particularly applicable for the recovery of metals such as Al, Mo, V, Ni and Co, contained ... | 01/08/1980 |
| 4075278 | Process for recovering molybdenum values from spent catalysts A process of recovering molybdenum from waste products and particularly from spent catalyst based on active alumina and containing molybdenum compounds comprising mixing the spent catalyst with sodium carbonate powder, adding water and remixing to absorb ... | 02/21/1978 |
| 4075277 | Process for recovering molybdenum values from spent catalysts A process of recovering molybdenum in the form of molybdic acid from waste products and particularly from spent catalysts containing a support based on gamma-alumina wherein the molybdenum is in the form of molybdenum oxide or molybdenum sulfide comprisin... | 02/21/1978 |
| 4017306 | Process for continuous production of pure sodium The invention relates to a purification process by which sodium of extremely high purity, more especially with a low calcium content, can be obtained from commercial-grade sodium. The process according to the invention essentially comprises continuously i... | 04/12/1977 |
