Patent Leaderboard
USPTO Patent Rankings Data through Sept 30, 2025
MP

Marcus K. Pressnell — 11 Patents

SDSteelcase Development: 8 patents #55 of 472Top 15%
STSteelcase: 3 patents #288 of 809Top 40%
Athens, AL: #9 of 108 inventorsTop 9%
Alabama: #602 of 10,951 inventorsTop 6%
Overall (All Time): #469,016 of 4,157,543Top 15%
11 Patents All Time

Issued Patents All Time

Showing 1–11 of 11 patents

Patent #TitleCo-InventorsDate
7565772 Knock-down portable partition system Michael L. Waalkes, Mark T. Slager, Michael R. Shields, Brian J. Kane, Robin Christopher +5 more 2009-07-28
7448168 Knock-down portable partition system Michael L. Waalkes, Mark T. Slager, Michael R. Shields, Brian J. Kane, Robin Christopher +5 more 2008-11-11
6910306 Knock-down portable partition system Michael L. Waalkes, Mark T. Slager, Michael R. Shields, Brian J. Kane, Robin Christopher +5 more 2005-06-28
6546684 Partition panel Michael L. Waalkes, Mark T. Slager, Michael R. Shields, Brian J. Kane, Robin Christopher +6 more 2003-04-15
6442909 Knock-down portable partition system Michael L. Waalkes, Mark T. Slager, Michael R. Shields, Brian J. Kane, Robin Christopher +4 more 2002-09-03
6301846 Knock-down portable partition system Michael L. Waalkes, Mark T. Slager, Michael R. Shields, Brian J. Kane, Robin Christopher +4 more 2001-10-16
6276103 Cover panel brace for partition systems Michael L. Waalkes, Mark T. Slager, Michael R. Shields, Brian J. Kane, Robin Christopher +10 more 2001-08-21
6098358 Knock-down portable partition system Michael L. Waalkes, Mark T. Slager, Michael R. Shields, Brian J. Kane, Robin Christopher +10 more 2000-08-08
6079173 Knock-down portable partition system Michael L. Waalkes, Mark T. Slager, Michael R. Shields, Brian J. Kane, Robin Christopher +4 more 2000-06-27
6009675 Knock-down portable partition system Michael L. Waalkes, Mark T. Slager, Michael R. Shields, Brian J. Kane, Robin Christopher 2000-01-04
5899035 Knock-down portable partition system Michael L. Waalkes, Mark T. Slager, Brian J. Kane, Michael R. Shields, Robin Christopher +4 more 1999-05-04