Famous Patents
The ice cream cone was invented at the St. Louis Worlds Fair by Ernest Hamwi in 1904. His waffle booth was next to an ice cream vendor who ran short of dishes. Hamwi rolled a waffle to hold ice cream and the cone was born.
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 |
| 8085039 | Miniature magnetic core, sensor comprising same and method for manufacturing same A miniature magnetic core includes at least one bar magnet having, in the demagnetized state, a plurality of magnetic domains separated by magnetic walls, the bar magnet having permanent discontinuities placed at least approximately at the probable locations of at l... | 12/27/2011 |
| 7391209 | Rotational position sensor, compound rotational position sensor and motor operated power steering device It is an object to provide a new rotational position sensor, compound rotational position sensor and motor operated power steering device capable of detecting the rotational position of a rotation detection shaft of which a steering shaft is representative. Accordin... | 06/24/2008 |
| 7026811 | Methods and apparatus for eddy current inspection of metallic posts An apparatus for inspecting a metallic post contoured in a single dimension for defects. The apparatus has a clamp having at least one jaw with a surface conforming to the contour to the metallic post. The conforming jaw or jaws also have a plurality of eddy current... | 04/11/2006 |
| 6882144 | Electromagnetic wave measuring apparatus and method An electromagnetic wave measuring apparatus includes a loop probe section having loop probes whose loop planes are placed so as to be perpendicular to each other, and each loop probe is placed so that its magnetic field detection space is not interfered with by othe... | 04/19/2005 |
| 6549800 | Methods for in vivo magnetic resonance imaging The systems and methods of the present invention provide for MRI probes adapted for insertion into a plurality of body orifices, in order to evaluate the anatomy of proximate anatomic structures, to diagnose abnormalities thereof and to treat the diagnose... | 04/15/2003 |
| 6493573 | Method and system for navigating a catheter probe in the presence of field-influencing objects A system for and method of determining and compensating for the effect of a field influencing object on a field sensor, preferably a coil, that is within a navigational domain. The navigational domain contains navigational magnetic energy and disturbing m... | 12/10/2002 |
| 6204661 | Detector for periodic magnetic field A detector for a magnetic field having a low frequency compared to background EMF and having a magnitude approximately 1,000 times less than the EMF, the detector comprising: a pickup coil for capturing the magnetic field and the background EMF; an integr... | 03/20/2001 |
| 4939459 | High sensitivity magnetic sensor A magnetic sensor is provided for use in detecting an external magnetic field, typically geomagnetism. Pulse or alternating current is applied across a wire or strip-shaped electrically conductive, magnetic body in its longitudinal direction to create an ... | 07/03/1990 |
| 4806859 | Resonant vibrating structures with driving sensing means for noncontacting position and pick up sensing A vibration type sensor can make a noncontacting measurement of position or pick up the passage of an object past a point. The sensor has a coil of wire placed on a vibrating structure. As an object with an attached magnet approaches the coil, an emf is i... | 02/21/1989 |
| 4523147 | Fine balancing second derivative gradiometer A fine balancing three-coil type gradiometer, comprising a support member for the coils which consists of two elements, the first of which bears the central coil and one of the end coils, while the second supports the other coil and is arranged to control... | 06/11/1985 |
| 4489274 | Rotating SQUID magnetometers and gradiometers A method and apparatus for measuring the strength, direction and gradients f an unknown magnetic field, through the use of rotating superconducting quantum interference devices (SQUID). The apparatus utilizes SQUID magnetometers, off-diagonal SQUID gradiom... | 12/18/1984 |
