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...that "patent leather" got its name because the process of applying the polished black finish to leather was once patented?
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| Number | Title | Issue Date |
| 7251629 | Automated trading system in an electronic trading exchange An electronic exchange system network includes a trader site having an automated trading system capable of submitting orders to an exchange site. The automated trading system determines whether an order should be submitted based on, for example, the current market p... | 07/31/2007 |
| 7185402 | Knit clips An apparatus for eliminating misaligned rows when securing edges of knitted panels together by securing edges of a pair of panels being darned. The apparatus comprises a first member and a second member each having a handle portion on a first end and a jaw portion o... | 03/06/2007 |
| 7032416 | Tire lock A tire lock includes a fixed arm, a lock tube, a movable arm and a lock rod. The movable arm is pivotally connected to the fixed arm at one end. Both the fixed arm and the movable arm comprise troughs, respectively. The lock tube is pivotally connected to the fixed ... | 04/25/2006 |
| 6937908 | Method for tuning PID controllers applicable to nonlinear systems A method for tuning a PID controller includes the steps of inducing equivalent relationships between PID gains of the PID controller and parameters of time delay control (TDC), selecting a natural frequency vector and a damping ratio vector so as to acquire a desire... | 08/30/2005 |
| 6505487 | Locking device for use with a projection lock and method for securing an object with a projection lock A locking device (1) includes a first clip member (20) and a second clip member (40). The first and second clip members (20, 40) include a first and second clip base (21, 41), respectively. A first jaw (22) extends outwardly from the first clip base (21) ... | 01/14/2003 |
| 5845520 | Locks and hasps A padlock for maintaining at least two hasps in engagement, including a two-part metal housing including first and second housing portions which are mutually hinged together so as to be pivotable between a mutually open orientation and a mutually closed o... | 12/08/1998 |
| 4073165 | Locking device for keyholes A locking device comprised of a base plate secured about a keyhole and a cover plate pivotally disclosed thereon including locking means which can be disposed in aligned openings in the plates to selectively lock one to the other to either expose or cover... | 02/14/1978 |
