SHELTER by BEST-Covered by the Following Patents:
| US 5,714,931 | US 7,053,767 | US 7,978,059 | US 8,754,780 |
| US 5,926,531 | US 7,079,810 | US 8,013,732 | US 8,908,842 |
| US 6,028,522 | US 7,103,511 | US 8,031,650 | US 8,924,587 |
| US 6,218,953 | US 7,137,550 | US 8,064,412 | US 8,924,588 |
| US 6,233,327 | US 7,263,073 | US 8,171,136 | US 8,930,571 |
| US 6,430,268 | US 7,295,128 | US 8,193,930 | US 8,942,666 |
| US 6,437,692 | US 7,397,907 | US 8,212,667 | US 8,964,708 |
| US 6,618,578 | US 7,424,527 | US 8,223,010 | US 9,111,240 |
| US 6,628,764 | US 7,468,661 | US 8,335,304 | US 9,129,497 |
| US 6,747,557 | US 7,480,501 | US 8,379,564 | US 6,044,062 |
| US 6,836,737 | US 7,650,425 | US 8,410,931 | US 6,249,516 |
| US 6,891,838 | US 7,697,492 | US 8,446,884 | US 7,054,271 |
| US 6,914,533 | US 7,739,378 | US 8,489,063 | US 7,089,125 |
| US 6,914,893 | US 7,756,086 | US 8,666,357 | US 8,000,314 |
| US 8,233,471 | |||
| US 8,625,496 | |||
| US 8,787,246 | |||
| US 8,982,856 |