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| US4610290 | 15 feb 1984 | 9 sep 1986 | | Pull-up curtain with pull-up device |
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| US4727919 | 7 nov 1985 | 1 mar 1988 | Nergeco | Safety and emergency actuator device for a concertina type door |
| US4914360 | 10 mar 1989 | 3 apr 1990 | | Venetian blind controller |
| US5726677 | 1 dec 1995 | 10 mar 1998 | Seiko Epson Corporation | Matrix display apparatus, matrix display control apparatus, and matrix display drive apparatus |
| US5860463 | 16 jun 1997 | 19 jan 1999 | V. Kann Rasmussen Industri A/S | End stop device for an electrically operated window screening arrangement |
| US6655441 | 14 maj 2002 | 2 dec 2003 | Industrial Technology Research Institute
Nien Made Enterprise Co., Ltd. | Friction transmission mechanism for a motor-driven blind |
| US6659156 | 30 maj 2002 | 9 dec 2003 | Industrial Technology Research Institute
Nien Made Enterprise Co., Ltd. | Screw transmission mechanism for a blind |
| US6736184 | 6 aug 2002 | 18 maj 2004 | | Motorized reel system for window covering |
