| Patents for G21C 5 - Moderator or core structure; Selection of materials for use as moderator (1,237) | 
|---|
| 02/14/1978 | US4073685 Reactor core lateral restraint assembly | 
| 02/07/1978 | US4072564 Motion restraining apparatus for a nuclear reactor | 
| 02/07/1978 | US4072562 Device to accept axial forces occurring on fuel assemblies during the operation of nuclear reactors | 
| 01/24/1978 | US4070241 Nuclear reactor removable radial shielding assembly having a self-bowing feature | 
| 01/17/1978 | US4069102 Nuclear core region fastener arrangement | 
| 01/10/1978 | US4067772 Rod-shaped components between fuel elements of boiling-water reactors | 
| 01/03/1978 | US4066500 Nuclear reactor | 
| 11/01/1977 | US4056437 Breeder reactors | 
| 10/11/1977 | US4053359 Nuclear reactor | 
| 10/11/1977 | US4053358 Modular assembly for supporting, straining, and directing flow to a core in a nuclear reactor | 
| 09/27/1977 | US4050986 Liquid-metal breeder | 
| 08/09/1977 | US4040902 Method for axially shuffling fuel elements in a nuclear reactor | 
| 07/26/1977 | US4038136 Support structure for the lateral neutron shield system of a fast reactor core | 
| 07/26/1977 | US4038133 Nuclear reactor with suspended fuel assemblies having secondary emergency suspensions | 
| 04/05/1977 | US4016035 Fuel assembly support column for a nuclear reactor diagrid | 
| 02/01/1977 | US4006055 Resilient tension device in nuclear reactors | 
| 01/25/1977 | US4004973 Neutronic reactor | 
| 12/21/1976 | US3998692 Seeding, thorium, plutonium, uranium | 
| 12/07/1976 | US3996102 Support grid | 
| 11/16/1976 | US3992256 Core support system for a fast reactor | 
| 10/26/1976 | US3987860 Nuclear reactor core stabilizing arrangement | 
| 10/19/1976 | US3986924 Nuclear reactor | 
| 08/31/1976 | US3977939 Refueling | 
| 08/31/1976 | US3977439 Sealing arrangement | 
| 07/27/1976 | US3971699 Neutronic reactor | 
| 07/27/1976 | US3971698 Nuclear reactors | 
| 07/06/1976 | US3968007 Neutronic reactor construction | 
| 06/22/1976 | US3964969 Nuclear reactor | 
| 06/01/1976 | US3960655 Water-cooled | 
| 05/25/1976 | US3959073 Reactor hold-down arrangement | 
| 05/18/1976 | US3957575 Mechanical design of a light water breeder reactor | 
| 03/09/1976 | US3943210 Preparation of metal hydride bodies by improved powder metallurgy process | 
| 03/09/1976 | US3943036 Fast breeder reactor | 
| 02/17/1976 | US3939039 Reactor core clamping device | 
| 02/17/1976 | US3939038 Nuclear reactor, core vessel intercept construction | 
| 02/10/1976 | US3937653 Diagrid for supporting a nuclear reactor core | 
| 02/03/1976 | US3936350 Nuclear reactor having thermally compensated support structure for a fuel assembly |