The Power of Patents

“If you can't beat them, arrange to have them beaten” -- George Carlin (American stand-up Comedian, Actor and Author. b.1937)

You can’t beat patent literature for keeping abreast of technology developments. 

Two easy sources for patent literature …

·         Google® Patents

·         FreePatentsOnline (www.freepatentsonline.com)

Search both sources to be sure you don’t miss anything … coverage of U.S. Patents differs somewhat between the two.

However, if you want to search for non-U.S. patents, the choice is clear … choose FreePatentsOnline.

Two reasons to make FreePatentsOnline your first choice …

1.       You can search any or all of U.S. Patents and Patent Applications, EP documents, Abstracts of Japan, WIPO, and some non-patent literature

2.       You can tailor your search string for more effective results

FreePatentsOnline offers an excellent tutorial (click “Help” to find it).  Below is their table of possible search strings, adapted for “desulfurization.”

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Desulfurization	Find all documents containing the word 'desulfurization' in any of the main text fields (title, abstract, or specification/description).
ABST/desulfurization	Find all documents containing the word 'desulfurization' in only the abstract.
desulfurization AND (fuel cell)	Find all documents containing both the word 'desulfurization' and the phrase 'fuel cell' in any of the main text fields (title, abstract, or specification/description). The two words may be in different fields.
ABST/desulfurization AND (fuel cell)	Find all documents containing the word 'desulfurization' in the abstract, and the phrase 'Fuel cell' in any of the main text fields (title, abstract, or specification/description).
ABST/desulfurization AND APD/12/14/2000->12/31/2011	Find all documents containing the word 'desulfurization' in the abstract which have an application date between Dec 14, 2000 and Dec 31, 2011
TTL/desulfurization NOT coal	Find all documents containing the word 'desulfurization' in the title, but do not include any documents which have the word 'coal' in any of the main text fields (title, abstract, or specification/description).
(desulfurization OR thiophene) AND (fuel cell)	Find all documents that contain either the word 'desulfurization' or the word 'thiophene', and which also contain the phrase 'fuel cell.' Note that without the parenthesis this query would be interpreted in an entirely different manner.
[with word stemming on] thiophene	Find all forms of the word 'thiophene'
"desulfurization cell"~5	Find all documents containing the word 'desulfurization' within 5 words of 'thiophene', in any of the main text fields (title, abstract, or body). The 5 may be replaced with any whole number.
thiophene^5 OR desulfurization	Thiophene is 5 times more important to the relevancy of documents than desulfurization. Find all documents containing the word 'thiophene' or 'desulfurization' but, all other things being equal, rank the documents containing thiophene higher. The "5" may be replaced with any whole number.
benzo*	Find all documents containing words starting with benzo
thiophene?	Find all documents containing words that have only one character after 'thiophene'

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Source (with adaptations): http://www.freepatentsonline.com/help/topic/Syntax-Examples.html

Below are sample search results using each of the above search strings …

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Search String Example	One of the Document Titles Resulting from the Search
desulfurization	Desulfurization agent
	A method for desulfurizing molten pig-iron involving injecting a gas-evolving desulfurization agent which includes a calcium compound and a gas forming material comprising of a gas-producing...
ABST/desulfurization	Powdery desulfurizer composition
	A powdery desulfurizer composition for injection desulfurization of molten iron, said composition comprising quicklime, diamide lime and calcium carbide.
desulfurization AND (fuel cell)	Method for desulfurizing a fuel for use in a fuel cell power plant
	A fuel processing system is operable to remove substantially all of the sulfur present in an undiluted hydrocarbon fuel stock supply used to power a fuel cell power plant in a mobile environment,...
ABST/desulfurization AND (fuel cell)	Fuel cell power generation system
	In a fuel cell power generation system for use with a fuel gas which is prepared by desulfurizing a raw fuel material such as naphtha, LPG, town gas, or the like and then, processing it by steam...
ABST/desulfurization AND APD/12/14/2000->12/31/2011	Zeolite adsorbent for desulfurization and method of preparing the same
	A zeolite adsorbent for desulfurization and a method of preparing the same. More particularly, a zeolite adsorbent for desulfurization in which the relative crystallinity of Y zeolite that is ion...
TTL/desulfurization NOT coal	DESULFURIZATION
(desulfurization OR thiophene) AND (fuel cell)	Method for desulfurizing a fuel for use in a fuel cell power plant
	A fuel processing system is operable to remove substantially all of the sulfur present in an undiluted hydrocarbon fuel stock supply used to power a fuel cell power plant in a mobile environment,...
[with word stemming on] thiophene	Benzo(b)thiophene derivatives
	The present invention relates to novel benzo(b)thiophene derivatives of the general formula: ##STR1## wherein Y represents a hydrogen or halogen atom; A represents a hydrogen atom or a phenyl group...
"desulfurization cell"~5	Desulfurization adsorbent for fuel cell and desulfurizing method using the same
	A desulfurization adsorbent for a fuel cell has a structure according to Formula 1 below, and a desulfurizing method uses the desulfurization adsorbent. The desulfurization adsorbent displays...
thiophene^5 OR desulfurization	Process for preparing thiophene derivatives and thiophene derivatives obtained thereby
	Process for the preparation of a series of thiophene derivatives, from which 2-thiopheneacetic acid derivatives can easily be prepared, in high yields and selectivity by using substituted or...
benzo*	Branched chain dodecyl isomeric mixtures of 2-(5-dodecyl-2-hydroxy phenyl) benzotriazole as stabilizers for heat and light sensitive materials
	This invention relates to a stabilization composition, particularly adapted to prevent deterioration resulting from exposure to heat and light in polymeric materials, paints and dyes, consisting...
Thiophene?	Substituted thiophenes, conducting polymers derived from these thiophenes, process for obtaining them and devices containing these polymers
	Substituted thiophenes of the general formula: ##STR1## in which: R represents a hydrogen atom, a halogen atom or an aliphatic group containing from 1 to 4 carbon atoms, X represents a hydrogen...

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