Did You Know...
...that Charles Goodyear performed some of his experiments on rubber while in debtor's prison? He was there so often he referred to it as his "hotel". Chronically in debt because of poor business sense and ill health, Goodyear depended on the generosity of friends and family. Even after he unlocked the secret to vulcanizing rubber, he was unable to improve his financial situation. When he died, his estate was $200,000 in debt.
PatentStorm News
Make the Most of Our Site
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest innovations by subscribing to an RSS feed.
Registered users: Manage your profile.
| Application No. | Application Title | Issue Date |
| 20080240485 | Earphone integrated eartip An integrated eartip (501) that utilizes a one-piece, rather than a multi-piece, design is provided. The one-piece design is comprised of a first portion that includes at least one, or at least two, sound delivery tubes (513/515) and a second portion that ... | 10/02/2008 |
| 20080069369 | Microphone and stereo audio monitor combination with four contact plug connector An audio monitor/microphone combination coupled to a four contact plug connector is provided. Exemplary audio monitors include ear buds, in ear monitors, over-the-head headsets, over-the-ear headsets, clip-on headsets, and behind-the-neck headsets. Exemplary microphones... | 03/20/2008 |
| 20070201717 | Earphone ambient eartip An eartip that includes at least one acoustic material filled port is provided. The port and the acoustic material contained therein provide the eartip with a controlled acoustic leakage path, thus allowing the user to tailor the performance of the earphones to which th... | 08/30/2007 |
| 20070053540 | Earpiece with acoustic vent for driver response optimization An acoustically tuned earpiece is provided. Venting is performed by boring a control port, separate from the output port, into the driver. The diameter of the control port must be sufficiently small to restrict the flow of air into and out of the driver, thus isolating ... | 03/08/2007 |
| 20060222185 | Headset visual feedback system A visual feedback system that activates a visual display when the sound pressure level from a headset attached to the system exceeds a preset level is provided, along with a method of using the same. The visual feedback system is interposed between the audio source and ... | 10/05/2006 |
| 20060193482 | Active crossover and wireless interface for use with multi-driver headphones A headset with an active crossover network is provided. The headset is coupleable to a first audio source using a wired connection and to a second audio source using a wireless connection. A controller is used to determine whether the first, or second, audio source is c... | 08/31/2006 |
| 20060193481 | Active crossover for use with multi-driver headphones A headset with an active crossover network is provided. The headset is coupled to an audio source using either a wired connection or a wireless connection. The active crossover network, utilizing either analog or digital filtering, divides each channel of the incoming a... | 08/31/2006 |
| 20060193480 | Active crossover and wireless interface for use with multi-driver in-ear monitors A headset with an active crossover network is provided. The headset is coupleable to a first audio source using a wired connection and to a second audio source using a wireless connection. A controller is used to determine whether the first, or second, audio source is c... | 08/31/2006 |
| 20060193479 | Active crossover for use with multi-driver in-ear monitors A headset with an active crossover network is provided. The headset is coupled to an audio source using either a wired connection or a wireless connection. The active crossover network, utilizing either analog or digital filtering, divides each channel of the incoming a... | 08/31/2006 |
| 20060133636 | Sound tube tuned multi-driver earpiece A method of optimizing the audio performance of an earpiece and the resultant device are provided. The disclosed earpiece combines at least two drivers within a single earpiece. If a pair of drivers is used, each driver has a discrete sound delivery tube. If more than t... | 06/22/2006 |
| 20060133632 | In-ear monitors with removable cables An audio monitor system that includes a pair of in-ear monitors, each of which includes a connector and a corresponding detachable cable, is provided. Each connector may include a two pin jack assembly and each detachable cable may include a corresponding two pin plug a... | 06/22/2006 |
