Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
GL

Grant Leum — 45 Patents

LELeum Engineering: 16 patents #1 of 2Top 50%
RHRite-Hite Holding: 6 patents #66 of 246Top 30%
Excelsior, MN: #9 of 237 inventorsTop 4%
Minnesota: #1,070 of 52,454 inventorsTop 3%
Overall (All Time): #64,393 of 4,157,543Top 2%
45 Patents All Time
Grant Leum has been granted 45 US patents while listed as an inventor at Leum Engineering. The first was granted in 2002 and the most recent in December 2025. Grant Leum ranks #64,393 of 4,157,543 US inventors in our database (top 1.5%). Patent records list Grant Leum in Excelsior, MN, US.

Issued Patents All Time

Showing 1–25 of 45 patents

Patent #TitleCo-InventorsDate
12486127 Vehicle leveler with lighting safety features Eric Demerath 2025-12-02
12479676 Vehicle leveler with improved drainage Eric Demerath 2025-11-25
12214979 Vehicle leveler with safety features Eric Demerath 2025-02-04
12024411 Vehicle leveler with wheel chock Eric Demerath 2024-07-02
12006170 Vehicle leveler with door interlock Eric Demerath 2024-06-11
11858763 Vehicle leveler with safety features Eric Demerath 2024-01-02
11772915 Hydraulically-powered vehicle leveler Eric Demerath 2023-10-03
11753261 Vehicle leveler with safety features Eric Demerath 2023-09-12
11745965 Vehicle leveler with safety features Eric Demerath 2023-09-05
11577923 Portable dock plate Eric Demerath 2023-02-14
11572239 Vehicle leveler with safety features Eric Demerath 2023-02-07
11511954 Vehicle leveler with swing gate Eric Demerath 2022-11-29
D968652 Swing gate for a loading dock Eric Demerath 2022-11-01
11273999 Modular loading dock with integrated leveler Eric Demerath 2022-03-15
11273998 Vehicle leveler with safety features Eric Demerath 2022-03-15
10815103 Vehicle leveler 2020-10-27
10549934 Dock housing 2020-02-04
10518990 Outdoor mobile loading dock 2019-12-31
10479624 Dock housing 2019-11-19
10370207 Outdoor mobile loading dock 2019-08-06
10365016 Solar-powered mobile loading dock 2019-07-30
D832681 Floor sleeve insert 2018-11-06
9944475 Dock leveler Eric Demerath 2018-04-17
9938094 Dock leveler with safety barrier Eric Demerath 2018-04-10
D813488 Loading dock ramp 2018-03-20