Did You Know...
...that to encourage use of his new invention, the shopping cart, market owner Sylvan Goldman hired fake shoppers to push the carts around his store in Oklahoma City? Seems his customers were reluctant to give up their hand-carried baskets.
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 |
| D656852 | Wetness indicator | 04/03/2012 |
| D654820 | Fuel sender | 02/28/2012 |
| D651533 | Fixed ratio metering system | 01/03/2012 |
| D639193 | Cycle indicator for fluid distribution systems | 06/07/2011 |
| D632988 | Housing for use with a process sensor | 02/22/2011 |
| D621733 | Instrument housing | 08/17/2010 |
| D613631 | Cycle indicator for fluid distribution systems | 04/13/2010 |
| D611859 | Level sensor | 03/16/2010 |
| D611860 | Level sensor | 03/16/2010 |
| D608231 | Housing for use with a process sensor | 01/19/2010 |
| D606437 | Sight glass applied in refrigeration system | 12/22/2009 |
| D606439 | Sight glass applied in refrigeration system | 12/22/2009 |
| D606438 | Sight glass applied in refrigeration system | 12/22/2009 |
| D603738 | Mechanical water sensor | 11/10/2009 |
| D602387 | Wireless drip monitoring apparatus | 10/20/2009 |
| D591627 | Cycle indicator for fluid distribution systems | 05/05/2009 |
| D586680 | Bottle closure | 02/17/2009 |
| D580807 | Gas gauge | 11/18/2008 |
| D573910 | Sample optical test apparatus | 07/29/2008 |
| D572617 | Water level sensing assembly | 07/08/2008 |
| D570236 | Cycle indicator for fluid distribution systems | 06/03/2008 |
| 7353704 | Storage tank external gauge system Provided herein are devices useful for guiding cables, wires, cords, and the like. A device according to the present invention is particularly useful for guiding a cable that is used in providing an external liquid-level gauge on an oil tank. A cable guide means acc... | 04/08/2008 |
| D563250 | Fuel checker device | 03/04/2008 |
| D561618 | Bottle sensor | 02/12/2008 |
| 7310965 | Compressor head, internal discriminator, external discriminator, manifold design for refrigeration recovery apparatus The compressor head, internal and/or external discriminator, and manifold design in general utilize ball valves on the suction and discharge of a cylinder head in the recovery of refrigerant liquid and/or vapor. The device facilitates the flashing of liquid refriger... | 12/25/2007 |
| D557157 | Liquid level sensor | 12/11/2007 |
| D537743 | Level measuring device | 03/06/2007 |
| D536272 | Digital water gauge used in a hands-free hydration system | 02/06/2007 |
| D535901 | Float arm | 01/30/2007 |
| 7159412 | Compressor head, internal discriminator, external discriminator, manifold design for refrigeration recovery apparatus The compressor head, internal and/or external discriminator, and manifold design in general utilize ball valves on the suction and discharge of a cylinder head in the recovery of refrigerant liquid and/or vapor. The device facilitates the flashing of liquid refriger... | 01/09/2007 |
| D526921 | Liquid metering housing | 08/22/2006 |
| D525549 | Rain gauge | 07/25/2006 |
| 7073346 | Compressor head, internal discriminator, external discriminator, manifold design for refrigerant recovery apparatus and vacuum sensor The compressor head, internal and/or external discriminator, and manifold design in general utilize ball valves on the suction and discharge of a cylinder head in the recovery of refrigerant liquid and/or vapor. The device facilitates the flashing of liquid refriger... | 07/11/2006 |
| D519867 | Lower body of float guage head | 05/02/2006 |
| D519049 | Float arm of float gauge | 04/18/2006 |
| D511703 | Battery-powered leak detection device with floor-mounted water sensor and automatic shut-off valve | 11/22/2005 |
| 6935173 | Liquid level sensing device A liquid level sensor includes a housing with circuitry provided therein. An inner and outer tube extend from the housing. The inner tube is positioned within a hollow center of the outer tube to form a coaxial configuration. A slot extends through the wall of the o... | 08/30/2005 |
| D507501 | Scale assembly for a fluid level gauge | 07/19/2005 |
| D500696 | Plate gear for float gauge | 01/11/2005 |
| D500455 | Level gauge | 01/04/2005 |
