Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
Home › Unknown › Robert A. DeFrancesco
RD

Robert A. DeFrancesco — 1 Patent

UNUnknown: 1 patents #29,356 of 83,584Top 40%
Methuen, MA: #156 of 259 inventorsTop 65%
Massachusetts: #57,159 of 88,656 inventorsTop 65%
Overall (All Time): #2,406,284 of 4,157,543Top 60%
1 Patents All Time
Robert A. DeFrancesco has been granted 1 US patent while listed as an inventor at Unknown. All of these patents were granted in 1989. Robert A. DeFrancesco ranks #2,406,284 of 4,157,543 US inventors in our database (top 57.9%). Patent records list Robert A. DeFrancesco in Methuen, MA, US.

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4845486 Residential fuel-oil level reporting and alarm system John D. Knight, Robert D. Shapiro, Frank Banks, Andrew Mitchell, Barry S. Sunray 1989-07-04

Frequent Collaborators

Andrew Mitchell1 shared
Barry S. Sunray1 shared
Frank Banks1 shared
John D. Knight1 shared
Robert D. Shapiro1 shared

Nearby-Ranked Inventors

Andrew Whitesides Lloyd1
Xianwu Meng1
Phillip COLETTI1
Yuchen Mao1
Sheng'an ZHANG1
Hayeong Nam1
Pedro Fernando Gomez Fernandez1
Kira Astakhova1
Amir EISEN1