CR

Charles Robertson

AT Ascension Technology: 2 patents #6 of 12Top 50%
DR Day Runner: 1 patents #3 of 3Top 100%
ND Northern Digital: 1 patents #21 of 47Top 45%
PO Plastic Oddities: 1 patents #3 of 4Top 75%
Overall (All Time): #551,216 of 4,157,543Top 15%
9
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
11678773 Folding shower seat 2023-06-20
11604057 Calibrating a magnetic transmitter Mark Schneider, Joseph Bruce Durfee 2023-03-14
D965998 Folding shower seat 2022-10-11
10948278 Calibrating a magnetic sensor Mark Schneider 2021-03-16
10883812 Calibrating a magnetic transmitter Mark Schneider, Joseph Bruce Durfee 2021-01-05
D480428 Frameless cork board 2003-10-07
D410250 Marker board 1999-05-25
5176522 Erasable marker board assembly 1993-01-05
4646593 Looped strap wrench for rotating cylindrical objects 1987-03-03