View Licensable Patents        View Spore Diagram

Pubs1	Pats1	Pubs2	Pats2	Permutation	Publications	Patents	Ratio
				(("fuel cells" or "fuel cell") and ("proton exchange membrane" or pem)) AND ((co and tolera$) and anode$) AND (((pt and au) or heterogeneous or (bimetallic or bi-metallic)) and catalyst)	50	46	108.6%
				(("fuel cells" or "fuel cell") and ("proton exchange membrane" or pem)) AND ((co and tolera$) and anode$) NOT (((pt and au) or heterogeneous or (bimetallic or bi-metallic)) and catalyst)	174	105	165.7%
				(("fuel cells" or "fuel cell") and ("proton exchange membrane" or pem)) NOT ((co and tolera$) and anode$) AND (((pt and au) or heterogeneous or (bimetallic or bi-metallic)) and catalyst)	94	58	162.0%
				NOT (("fuel cells" or "fuel cell") and ("proton exchange membrane" or pem)) AND ((co and tolera$) and anode$) AND (((pt and au) or heterogeneous or (bimetallic or bi-metallic)) and catalyst)	59	106	55.6%