"To place a man in a multi-stage rocket and project him into the controlling gravitational field of the moon where the passengers can make scientific observations, perhaps land alive, and then return to earth--all that constitutes a wild dream worthy of Jules Verne. I am bold enough to say that such a man-made voyage will never occur regardless of all future advances."
Lee deForest, American radio pioneer ; 1957
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| Number | Title | Issue Date |
| 7845141 | Shingle with interlocking water diverter tabs A shingle includes a body having a top surface, a bottom surface, an upper end, a lower end, a first side, and a second side. The body has a width defined as the distance between the first and second sides and a length defined by the distance between the upper and l... | 12/07/2010 |
| 7563478 | Synthetic roofing shingles Disclosed is a coated synthetic shingle that exhibits increased resistance to ultra-violet radiation. The shingle is useable for roofing applications and includes a substrate having a substrate surface and a base coat that is applied to the substrate surface. The ba... | 07/21/2009 |
| 7520098 | Stepped tile shingle A shingle includes a body having an upper end, a lower end, a top surface, a bottom surface, a first side and a second side. The body has a width defined as the distance between the two opposing sides, a length defined by the distance between the upper end and the l... | 04/21/2009 |
| 7331150 | Shingle with interlocking water diverter tabs A shingle includes a body having a top surface, a bottom surface, an upper end, a lower end, a first side, and a second side. The body has a width defined as the distance between the first and second sides and a length defined by the distance between the upper and l... | 02/19/2008 |
| 7140153 | Synthetic roofing shingles Disclosed is a coated synthetic shingle that exhibits increased resistance to ultra-violet radiation. The shingle is useable for roofing applications and includes a substrate having a substrate surface and a base coat that is applied to the substrate surface. The ba... | 11/28/2006 |