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

Mark E. Lamb

OMOutboard Marine: 6 patents #62 of 426Top 15%
JDJohn Deere: 6 patents #791 of 5,518Top 15%
RARansomes America: 4 patents #2 of 13Top 20%
Lincoln, NE: #53 of 1,303 inventorsTop 5%
Nebraska: #195 of 5,697 inventorsTop 4%
Overall (All Time): #280,204 of 4,157,543Top 7%
17 Patents All Time

Issued Patents All Time

Showing 1–17 of 17 patents

Patent #TitleCo-InventorsDate
6238004 Attachment mounting structure Loren F. Hansen 2001-05-29
6224161 Attachment mounting structure Loren F. Hansen 2001-05-01
6206302 Attachment mounting structure Loren F. Hansen 2001-03-27
6036275 Attachment mounting structure Loren F. Hansen 2000-03-14
5797458 Aerator control mechanism Merlin E. Simon, Michael Timothy Teiga 1998-08-25
5673025 Fluid leak detector mechanism Maria Rosalyn Bengua Refugio, Gordon L. Marquart 1997-09-30
5553445 Riding mower with swingout center mower head David Merchant 1996-09-10
5540037 Control system for electric drive riding mower David Merchant 1996-07-30
D362447 Riding greens mower 1995-09-19
5406778 Electric drive riding greens mower David Merchant 1995-04-18
4926947 Turf aerating apparatus with resilient handle mount Mark L. Cozine, David G. Ferguson, Loren F. Hansen 1990-05-22
4867244 Turf aerating apparatus Mark L. Cozine, David G. Ferguson, Loren F. Hansen 1989-09-19
4753298 Turf aerating apparatus Loren F. Hansen 1988-06-28
4750565 Turf aerating apparatus Loren F. Hansen 1988-06-14
4645012 Turf aerating apparatus Loren F. Hansen 1987-02-24
4638867 Tine holder for turf aerating apparatus Loren F. Hansen 1987-01-27
4574890 Tine holder for turf aerating apparatus Loren F. Hansen 1986-03-11