Celebrity Inventors
Lawrence Welk, the bandleader who entertained millions of Americans over a generation of broadcasting his TV show, once received a patent: for a music-themed design of an ashtray.
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.
| Number | Title | Issue Date |
| 6953104 | Muffin fan hush hood A low noise method and apparatus with the apparatus including a hood for mounting over an exhaust outlet duct to capture a fluid stream and then redirect the fluid stream to a fluid outlet in the hood through the use of smoothly curving duct that maintains the fluid... | 10/11/2005 |
| 6945355 | Muffler arrangement for a flow duct A muffler arrangement includes muffler elements arranged in rows which are oriented in each case transversely to a direction of flow. The muffler elements themselves are oriented in each case longitudinally in relation to the direction of flow. The distance between ... | 09/20/2005 |
| 6023938 | Refrigeration or air conditioning unit with noise reducing grille The open grille structure normally directly in front of a condenser coil is replaced with an acoustical barrier which is moved forward of the condenser coil. In moving the acoustical barrier forward, space results at the top, bottom and sides of the unit ... | 02/15/2000 |
| 5343713 | Active noise control apparatus for three-dimensional space An active noise control system for a three-dimensional space, including noise detecting means, sound generating means, noise control effect detecting means and a control device consisting of a phase of a wave signal fed from the noise detecting means wher... | 09/06/1994 |
| 4586349 | Unitary air conditioner A unitary air conditioner including a compressor, a chiller coil, a condenser, an indoor fan and an outdoor fan provided on a common base. An outdoor cabinet accommodates the compressor, condenser and outdoor fan. An indoor cabinet accommodates the chille... | 05/06/1986 |
