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

Lee Du — 6 Patents

UNUnknown: 4 patents #4,220 of 83,584Top 6%
Palo Alto, CA: #3,345 of 9,675 inventorsTop 35%
California: #94,478 of 386,348 inventorsTop 25%
Overall (All Time): #779,687 of 4,157,543Top 20%
6 Patents All Time
Lee Du has been granted 6 US patents while listed as an inventor at Unknown. The first was granted in 2016 and the most recent in October 2023. Lee Du ranks #779,687 of 4,157,543 US inventors in our database (top 18.8%). Patent records list Lee Du in Palo Alto, CA, US.

Patents per Year

Patents granted per year, 2016 to 2023Bar chart with a peak of 2 patents in 2016.peak 22016: 2 patents20162019: 1 patents20192021: 1 patents20212022: 1 patents20222023: 1 patents2023

Issued Patents All Time

Showing 1–6 of 6 patents

Patent #TitleCo-InventorsDate
11805164 Systems and methods of tracking the delivery and post-delivery status for electromagnetically transmissible contents delivered via user initiated and controlled hybrid delivery modes with the continuing interplay of an address-linked machine-readable code system with analytical functional modules 2023-10-31
11489912 Systems and methods of tracking the delivery and post-delivery status for electromagnetically transmissible contents delivered via user initiated and controlled hybrid delivery modes with the continuing interplay of an address-linked machine-readable code system 2022-11-01
10999351 Systems and methods of tracking the delivery and post-delivery status for electromagnetically transmissible contents delivered via user initiated and controlled hybrid delivery modes with the interplay of an address-linked machine-readable code system 2021-05-04
10515376 Systems and methods of tracking the delivery and post-delivery status for electromagnetically transmissible contents delivered via user initiated and controlled hybrid delivery modes with the interplay of a machine-readable code system 2019-12-24
9425991 Systems and methods of tracking the delivery and post-delivery status for electromagnetically transmissible contents delivered via user initiated and controlled hybrid delivery modes 2016-08-23
9237036 User initiated and controlled delivery in hybrid mode of electromagnetically transmissible contents to recipients in designated delivery locations or apparatus 2016-01-12