Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
Home › Unknown › Robert Douglas Holmes
RH

Robert Douglas Holmes — 3 Patents

UNUnknown: 2 patents #12,644 of 83,584Top 20%
Escondido, CA: #486 of 1,330 inventorsTop 40%
California: #150,760 of 386,348 inventorsTop 40%
Overall (All Time): #1,328,092 of 4,157,543Top 35%
3 Patents All Time
Robert Douglas Holmes has been granted 3 US patents while listed as an inventor at Unknown. The first was granted in 2001 and the most recent in October 2008. Robert Douglas Holmes ranks #1,328,092 of 4,157,543 US inventors in our database (top 31.9%). Patent records list Robert Douglas Holmes in Escondido, CA, US.

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
D578031 Clock face Christopher Althorpe 2008-10-07
D560945 Mat Stephen Marshall-Rees 2008-02-05
6235367 Composite material for construction and method of making same Valerie L. Holmes, Frank J. McManus 2001-05-22

Frequent Collaborators

Christopher Althorpe1 shared
Frank J. McManus1 shared
Valerie L. Holmes1 shared
Stephen Marshall-Rees1 shared

Nearby-Ranked Inventors

Daniel Silion3
Hangfeng Li3
Mark Vander Wal3
Chad M. Goltzman3
Sathish Kumar Thanganathan3
Debbie Maloyd3
Ethan Alexander Garrett3
Paul Sabatka3
Sergii Bomko3