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 |
| 8171930 | Powder inhaler featuring reduced compaction inhaler An inhaler has an air inlet port and an entry passage extending from the air inlet port to a contact chamber inlet port, a contact chamber and an inhaler air outlet port. The contact chamber has first and second opposed ends, a sidewall extending between the first a... | 05/08/2012 |
| 8166607 | Upright vacuum cleaner Several embodiments of an upright surface cleaning apparatus are disclosed. The surface cleaning apparatus has a first cyclonic cleaning stage and comprises a surface cleaning head having a dirty fluid inlet. A fluid flow path extends from the dirty fluid inlet to a... | 05/01/2012 |
| 8151407 | Surface cleaning apparatus with enlarged dirt collection chamber A surface cleaning apparatus is disclosed. The surface cleaning apparatus comprises a dirt inlet, a clean air outlet and a fluid flow path extending between the dirt inlet and the clean air outlet. The surface cleaning apparatus further comprises first and second si... | 04/10/2012 |
| 8146201 | Surface cleaning apparatus A vacuum cleaner comprises adjacent housings, which contain the filtration and suction fan motor assembly of the vacuum cleaner. ... | 04/03/2012 |
| 8127398 | Convertible surface cleaning apparatus An upright surface cleaning apparatus is disclosed. Embodiments of the apparatus comprise a surface cleaning head having a dirty fluid inlet. A fluid flow path extends from the dirty fluid inlet to a clean air outlet, and includes a suction motor and at least one cl... | 03/06/2012 |
| 8123254 | Method for mounting artwork reproductions printed on a deformable substrate and for incorporating a printed deformable substrate in a publication A non-cellulose based deformable substrate having at least one fold line is configured to be able to be directly mounted on a frame or included in a publication. The substrate is configured to reduce the propagation of stress along the at least one fold line. ... | 02/28/2012 |
| 8097068 | Method for treating a diamine absorbent stream A diamine absorbent that contains heat stable salts is regenerated using an ion exchange process wherein the concentration of heat stable salts in the feed stream provided to the cation exchange unit is limited. ... | 01/17/2012 |
| 8063112 | Process for the regeneration of an ion exchange resin using sulfurous acid A diamine absorbent that contains heat stable salts is regenerated using an ion exchange process wherein the cation exchange resin is regenerated using sulfurous acid reflux. ... | 11/22/2011 |
| 8051621 | Tie system and method for connecting a cementitious backup wall made in a penetrable form and a veneer wall A tie system is provided for use with a wall form for a cementitious backup wall and for use with a wall tie to connect between the cementitious backup wall and a veneer. The tie system includes a backup wall connector and a form connector. The form connector is con... | 11/08/2011 |
| 8048463 | Production of high-quality protein isolated from oil seeds The present invention provides a method for processing defatted oil seeds, comprising the steps of: (a) solubilizing at least a portion of the protein contained in the oil seeds to produce suspended residual solids and a first solution comprising protein, phenolic-p... | 11/01/2011 |
| 8048183 | Vacuum cleaner with a divider An indoor vacuum cleaner comprises a dirty air inlet, a handle, a cyclone separator having an outer wall, a fluid inlet downstream from the dirty air inlet and a fluid outlet, a plate having a cyclone chamber surface and positioned to substantially divide the cyclon... | 11/01/2011 |
| 8043502 | Water pitcher filter A filter assembly for a household water filtration apparatus, and a method for filtering water using a household water filtration apparatus are provided. The filter assembly comprises a through-flow cartridge, which has an accessible cavity. The cartridge is removab... | 10/25/2011 |
| 8021526 | Household appliances which utilize an electrolyzer and electrolyzer that may be used therein A household appliance incorporating an electrolyzer for electrolysis of water to H2 and O2 and an electrolyzer therefor. The appliance may include a burner for the hydrogen produced and an electric conductive member to provide household current... | 09/20/2011 |
| 8015659 | Air flow passage for a vacuum cleaner A vacuum cleaner is provided having improved pressure loss characteristics. A fluid supply conduit in flow communication with an inlet to a cyclone is integrally formed as part of a cyclone bin. The present invention may be adapted for use with cyclonic separation d... | 09/13/2011 |
| 7941895 | Configuration of a cyclone assembly and surface cleaning apparatus having same A cyclone separator useable in a surface cleaning apparatus comprises a cyclone casing defining a cyclone chamber and having first and second opposed ends and a sidewall extending between the first and second ends. The first end is provided with a fluid inlet and th... | 05/17/2011 |
| 7931717 | Vacuum cleaner with a removable cyclone array A surface cleaning apparatus comprising a dirt inlet, a handle, a first cyclonic cleaning stage, a second cyclonic cleaning stage comprising a plurality of cyclones in parallel and a plurality of dirt collection chambers that are emptied concurrently, and the first ... | 04/26/2011 |
| 7887612 | Vacuum cleaner with a plurality of cyclonic cleaning stages A portable appliance comprises a dirt inlet, first and second cyclonic stages wherein each cyclonic stage comprises a plurality of cyclones in parallel and the second cyclonic stage is downstream from the first cyclonic stage and a fluid flow motor. ... | 02/15/2011 |
| 7874243 | Beverage freshness monitoring system and method A timer system for monitoring the freshness of a beverage in a plurality of carafes, and a method of use are disclosed. The timer system comprises a plurality of matched pairs of timers and signaling members, with each timer being individually actuateable and each s... | 01/25/2011 |
| 7867308 | Cyclonic array such as for a vacuum cleaner A cyclonic cleaning stage for a, e.g., surface cleaning apparatus is provided. The cyclonic cleaning stage comprises a plurality of cyclones, which are integrally molded as a single body. Each cyclone has a cyclone body having an upper end, a lower end, a cyclone in... | 01/11/2011 |
| 7811345 | Vacuum cleaner with a removable cyclone array A portable vacuum cleaner having at least first and second cleaning stages wherein the first cleaning stage has a dirt collection member and the second cleaning stage comprises a plurality of cyclones and at least one dirt collection chamber, wherein the first and s... | 10/12/2010 |
| 7803207 | Vacuum cleaner with a divider An indoor vacuum cleaner comprises a dirty air inlet, a handle, a cyclone separator having an outer wall, a fluid inlet downstream from the dirty air inlet and a fluid outlet, a plate having a cyclone chamber surface and positioned to substantially divide the cyclon... | 09/28/2010 |
| 7795548 | Weighing serving implement A weighing serving implement is disclosed. The weighing serving implement has a head to serve food and is mounted to a mount at a pivot point. The pivot point provides a mechanical balance and facilities a rugged and washable design. ... | 09/14/2010 |
| 7776296 | Regeneration of ion exchangers that are used for salt removal from acid gas capture plants A process for the removal of an amine capturable gas from a feed gas stream using an amine solvent, the process comprises (a) contacting the feed gas stream with a lean amine solvent to form a rich amine solvent, wherein heat stable salts are present in the rich ami... | 08/17/2010 |
| 7740675 | Cyclonic vacuum cleaner A surface cleaning apparatus comprises a dirt inlet, a handle, a cyclonic cleaning unit comprising a plurality of cyclones and at least one dirt collection chamber, each of the plurality of cyclones having an outer wall, an interior, a fluid inlet downstream from th... | 06/22/2010 |
| D611210 | Vacuum cleaner | 03/02/2010 |
| 7601315 | Process for the recovery of carbon dioxide from a gas stream A process for removing acid gas from a gas stream utilizes a low viscosity absorbent comprising a solution of at least one selected amine. The absorbent may include (1) at least one polyamine in the absence of an effective amount of tertiary amine functionalities ha... | 10/13/2009 |
| 7550721 | Method and apparatus for depositing samples on a target surface There is provided a sample deposition device for depositing samples on a target surface such as MALDI target surfaces for use in mass spectrometry analysis. The device comprises a vacuum chamber, a sealable opening communicating with the vacuum chamber, a sample inl... | 06/23/2009 |
| 7544241 | Method for sealing a conduit and composition for use therein A grout for repairing a conduit, such as an underwater conduit comprises, as mixed, from 40 to 50 wt % cement; from 25 to 35 wt % water; and, from 0.05 to 0.25 wt % psyllium husk; based on the total weight of the grout as mixed. ... | 06/09/2009 |
| 7455708 | Air flow passage for a vacuum cleaner A vacuum cleaner is provided having improved pressure loss characteristics. A fluid supply conduit in flow communication with an inlet to a cyclone is integrally formed as part of a cyclone bin. The present invention may be adapted for use with cyclonic separation d... | 11/25/2008 |
| D581609 | Vacuum cleaner | 11/25/2008 |
| D577236 | Wall mountable display case | 09/23/2008 |
| 7416582 | Method and apparatus for NO and Hg removal A cyclic process for the removal of NOx from a NOx containing feed gas, and optionally removal mercury vapour and/or sulfur dioxide is provided. A process is also provided by which an iron chelate absorbent may be thermally regenerated. ... | 08/26/2008 |
| D574564 | Vacuum cleaner | 08/05/2008 |
| 7367165 | Moisture control strip A wall is provided comprising an inner wall component, an outer wall component, and a plurality of the moisture control strips described above, disposed between the inner wall component and the outer wall component. The projections on the first wall component contac... | 05/06/2008 |
| 7235702 | Process for production of alcohols The invention disclosed relates to the production of alcohols. A first aspect of the invention relates to a process for production of alcohols, and in particular to a process for the catalytic hydration of an olefin to the corresponding alcohol in substantially anhy... | 06/26/2007 |
| 7214358 | Low energy regenerable SOscrubbing process Sulphur dioxide is removed from gas streams by contacting the gas stream with an absorbing medium containing an amine capable of forming an amine salt, heat stable salt and sulfite. The level of heat stable salt is selected such that during the regeneration process ... | 05/08/2007 |
| 7211702 | Process for production of alcohols The invention disclosed relates to the production of alcohols. A first aspect of the invention relates to a process for production of alcohols, and in particular to a process for the catalytic hydration of an olefin to the corresponding alcohol in substantially anhy... | 05/01/2007 |
| 7179314 | Vacuum cleaner A method for filtering a dirty air stream in a vacuum cleaner to obtain a clean air stream comprises subjecting the dirty air stream to a first cyclonic separation stage to obtain a partially cleaned air stream and subjecting the partially cleaned air stream to an e... | 02/20/2007 |
| 7171810 | Stirling engine with hydraulic output A heat engine has a region within which a working fluid travels and an hydraulic fluid provided in a reservoir and the output from the heat engine drives the movement of the hydraulic fluid. ... | 02/06/2007 |
| 7007757 | Fracturing fluids containing borate esters as crosslinking agents and method of using same A formation treating fluid comprises one or more borate esters, a liquid carrier and, one or more cross linkable polymer wherein the formation treating fluid has an alkaline pH when the formation treating fluid is positioned in a formation. The formation treating fl... | 03/07/2006 |