Charlotte, North Carolina
United States
4
2008-03-13
1
2010-07-20
These are the the leading inventors for applications assigned to PEN TECHNOLOGIES, LLC:
PEN TECHNOLOGIES, LLC based in Charlotte, US has been assigned the rights to these inventions. The list includes both Pending Applications and Patent Grants:
WRITING INSTRUMENT THAT CALCULATES GRADE
#2 | 2008-03-13WRITING INSTRUMENT THAT CALCULATES GRADE
#3 | 2008-03-13WRITING INSTRUMENT THAT CALCULATES GRADE
#4 | 2008-03-13 ✅ Patent 7,760,195 granted on 2010-07-20Writing instrument that calculates grade
261893 ⎘