View Licensable Patents        View Spore Diagram

Pubs1Pats1Pubs2Pats2PermutationPublicationsPatentsRatio
aclm/("fuel cell" or "fuel cells") AND aclm/hydrogen AND aclm/(pem or "proton exchange membrane") 14497148.4%
aclm/("fuel cell" or "fuel cells") AND aclm/hydrogen NOT aclm/(pem or "proton exchange membrane") AND spec/(pem or "proton exchange membrane")461253182.2%
aclm/("fuel cell" or "fuel cells") NOT aclm/hydrogen AND aclm/(pem or "proton exchange membrane") AND spec/hydrogen172121142.1%
NOT aclm/("fuel cell" or "fuel cells") AND aclm/hydrogen AND aclm/(pem or "proton exchange membrane") AND spec/("fuel cell" or "fuel cells")1713130.7%


Statistical Summary
Total Publications:794
Total Patents: 484
Mean Ratio: 150.9%
Standard Deviation: 22.12%
Mean + StdDev: 173.02
Mean - StdDev: 173.02%