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.
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 |
| 4031973 | Placer mining tool This invention relates to placer mining and more particularly to a novel bit adapted for use in stream beds, dependably to break up and deliver to and through a sluice box a quantity of divided, water-borne gravel, sand, clay and ore for the conventional ... | 06/28/1977 |
| 4010560 | Deep sea mining apparatus and method A deep sea mining apparatus and method for mining mineral nodules from the ocean floor, comprises at least one surface ship and preferably a plurality of nodule harvesting or mining machines supported from the surface ship and resting on the ocean floor f... | 03/08/1977 |
| 3999566 | Method and apparatus for discharging overboard excess water from hopper of hopper suction dredger or barge or scow A method and apparatus for discharging overboard the excess water from the hopper of a hopper suction dredger, barge or scow for removing the air bubbles contained in the discharged water and for preventing the air bubbles from being entrained into the di... | 12/28/1976 |
| 3975842 | Method and apparatus for dredging employing a transport fluid flowing in substantially closed recirculating course Dredging or suction of a soil suspension from the sea bottom is effected through a suction conduit connected with a suction head enclosure resting on the sea bottom, there concurrently being supplied to the suction head enclosure and through a separate co... | 08/24/1976 |
| 3975841 | Ship and pier for extraction of valuable materials from the sea bed Valuable materials, such as manganese, are extracted from the sea bed by pelling through the sea a buoyant body which floats on the sea and carries equipment for extracting the material from the sea bed. A pier connected to the body affords moorings for ... | 08/24/1976 |
| 3968579 | Apparatus for sediment dredging and ocean mineral gathering An underwater mining or dredging apparatus having a supporting vessel and a continuous loop to which is attached a number of containers. In one embodiment, the loop is hollow and has a ballasted fluid in a lower portion while the descending portion is buo... | 07/13/1976 |
| 3955294 | Elevator apparatus for towed deep-sea particle harvester An elevator apparatus for emptying a towed deep-sea particle harvesting sled is disclosed. The sled is towed over the bottom surface of a deep-sea ocean bed by a strip. The strip is connected at its lower end to the sled, at its upper end to the vessel, a... | 05/11/1976 |
| 3950246 | Dredge units A dredge unit having a buoyant support carrying a sluice box suspended beneath, a water suction system connected to an outlet end on the box and a suction hose operatively connected to an inlet end thereof. The water suction system operates to draw water ... | 04/13/1976 |
| 3950030 | Underwater mining Methods and apparatus for underwater mining by inducing upwelling of water and entrained minerals or other materials through a conduit from an intake which may move within the body of water by unbalanced forces developed therein by such upwelling to a rec... | 04/13/1976 |
