U.S. patents available from 1976 to present.
U.S. patent applications available from 2005 to present.

Icon_funbox Bizarre Patents

Patent No. 6266829

Combination Beverage Container and Spittoon

A combination beverage container and spittoon includes a bottom portion including outer wall and a first inner wall defining a spittoon space.

Newsletter  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.

 

Class 436/27 - Using chemical tracers


Subclass of Class 436 - Chemistry: analytical and immunological testing
Definition: Processes or compositions wherein chemical tracers are utilized
No. of applications: 7
Last issue date: 01/07/2010


Application No.Application TitleIssue Date
20100003760Analysis of beryllium in soils and other samples by fluorescence
An improved low-cost practical method of determining beryllium or a beryllium compound thereof in a sample is disclosed by measuring fluorescence. This method discloses methods to lower the back ground fluorescence. Further, the method is extended to improved analysis o...
01/07/2010
20090087911CODED OPTICAL EMISSION PARTICLES FOR SUBSURFACE USE
Tagging system and method including a plurality of particles, each particle having a miniature body and configured to provide a non-radioactive resolvable optical emission in a distinguishable pattern when selectively illuminated. The particles are set for selective rel...
04/02/2009
20090087912TAGGED PARTICLES FOR DOWNHOLE APPLICATION
A tagged object includes a main body and a plurality of coded particles. Each coded particle may have a miniature body and be configured to provide a resolvable optical emission pattern when illuminate. The plurality of coded particles may be immobilized to the main bod...
04/02/2009
20070193351Method and apparatus for ion-selective discrimination of fluids downhole
In a particular embodiment, a method is disclosed for determining a source of a fluid downhole. The method includes deploying an ion selective sensor downhole, exposing the fluid to the ion selective sensor downhole, measuring an ion concentration at different places wi...
08/23/2007
20070117207Temperature compensated vapor sensor
A chemiresistor sensor system that compensates for changes in resistance caused by changes in ambient temperature, thereby increasing the accuracy of the sensor system's ability to detect target analytes. The sensor system generally includes a first resistor, a second r...
05/24/2007
20070111314Methods for tagging and authenticating inks using compositions
A method for tagging an ink with an isotopic tagging composition is provided. The method includes tagging the ink with a tagging composition having an artificial abundance of at least one isotope of an element to produce an authentic ink having an artificial abundance o...
05/17/2007
20060035380Fake-proof marking of a composition
The invention relates to a process for the fake-proof marking of a product, by introducing at least one non-radioactive stable isotope of at least one atomic element, such that the content of the isotope in the product is higher than its natural content, the isotope bei...
02/16/2006
 
Sign InRegister
Username  
Password   
forgot password?