21 Utility Patents
#2 in Yellow Springs, OH
#2,321 in Ohio
#80,134 in US
#157,531 in the World
Forward Citations = 58
Company Filing History:



4. 1 out of 832,492 patents
Other
5. 1 out of 104
Block Drug Company, Inc.
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#2 in Yellow Springs, OH
#2,321 in Ohio
#80,134 in US
#157,531 in the World
Company Filing History:



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