| N п/п | Номер патента | Название | Подгруппа МПК |
| 1998 | |||
| 1 | 5826829 | Spacecraft control system with a trihedral momentum bias wheel configuration | B64G1/28, B64G1/36, B64G1/24, G05D1/08 |
| 1989 | |||
| 2 | 4843396 | Trihedral radar reflector | G01S13/00, G01S17/46, H01Q15/14, H01Q15/18 |
| 1986 | |||
| 3 | 4612473 | Incandescent lamp with dichroic trihedral corner reflectors | F21V9/00, F21V9/04 |
| 1978 | |||
| 4 | 4073568 | Retroreflector units with three mutually perpendicular surfaces defining a trihedral angle of a rectangular parallelepiped | G02B5/124, G02B5/12 |