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

Dav Mar — 4 Patents

DIDionex: 2 patents #56 of 171Top 35%
Sunnyvale, CA: #5,603 of 14,302 inventorsTop 40%
California: #126,026 of 386,348 inventorsTop 35%
Overall (All Time): #1,080,739 of 4,157,543Top 30%
4 Patents All Time
Dav Mar has been granted 4 US patents while listed as an inventor at Dionex. The first was granted in 1985 and the most recent in October 2021. Dav Mar ranks #1,080,739 of 4,157,543 US inventors in our database (top 26.0%). Patent records list Dav Mar in Sunnyvale, CA, US.

Patents per Year

Patents granted per year, 1985 to 2021Bar chart with a peak of 1 patents in 1985.peak 11985: 1 patents19851987: 1 patents19872020: 1 patents20202021: 1 patents2021

Issued Patents All Time

Showing 1–4 of 4 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
11148733 Apparatus for the modification of vehicles 2021-10-19
10604194 Apparatus for the modification of vehicles 2020-03-31
4644807 Fluid sample delivery apparatus 1987-02-24 $1,821,000
4512545 Externally actuated valve assembly and method 1985-04-23 $1,022,000