Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
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Robert John Duff — 12 Patents

OAOatey: 3 patents #20 of 68Top 30%
PRPromerus: 3 patents #51 of 140Top 40%
HFH.B. Fuller Licensing & Financing: 1 patents #118 of 196Top 65%
AMAmgen: 1 patents #1,873 of 2,867Top 70%
The Johns Hopkins University: 1 patents #1,989 of 4,416Top 50%
EAE.I. Du Pont De Nemours And: 1 patents #7,385 of 12,129Top 65%
Newark, DE: #132 of 1,550 inventorsTop 9%
Delaware: #765 of 7,163 inventorsTop 15%
Overall (All Time): #396,045 of 4,157,543Top 10%
12 Patents All Time
Robert John Duff has been granted 12 US patents while listed as an inventor at Oatey. The first was granted in 2001 and the most recent in June 2024. Robert John Duff ranks #396,045 of 4,157,543 US inventors in our database (top 9.5%). Patent records list Robert John Duff in Newark, DE, US.

Issued Patents All Time

Showing 1–12 of 12 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
12000775 System suitability method for use with protein concentration determination by slope Christian Gutierrez 2024-06-04 $452,639,000
9611409 Color developing colorless primer 2017-04-04
8846857 Solution phase processing of polyarylene sulfide Zheng-Zheng Huang, Joachim C. Ritter, Joel Pollino 2014-09-30 $14,667,000
8742007 Color developing colorless primer 2014-06-03
8673885 Compounds for the protection of sulfur containing linkers in nucleic acid synthesis 2014-03-18
7851575 Polycyclic polymers containing pendant ion conducting moieties Ramakrishna Ravikiran, Xiaoming Wu, Larry F. Rhodes, Robert A. Shick, Hiroko Nakano +4 more 2010-12-14
7838585 Plastic adhesive Amrit Parhar, Forest Hamptom, III 2010-11-23
7422836 Dissolution rate modifiers for photoresist compositions Larry F. Rhodes, Lawrence Seger, Brian L. Goodall, Lester Howard McIntosh, III 2008-09-09
7312292 Polycyclic polymers containing pendant ion conducting moieties Ravi Ravikiran, Xiaoming Wu, Larry F. Rhodes, Robert A. Shick, Hiroko Nakano +4 more 2007-12-25
7262177 Conjugates of glycosylated/galactosylated peptide, bifunctional linker, and nucleotidic monomers/polymers, and related compositions and methods of use Paul O. P. Ts'o, Scott Deamond 2007-08-28
6906182 Conjugates of glycosylated/galactosylated peptide, bifunctional linker, and nucleotidic monomers/polymers, and related compositions and method of use Paul O. P. Ts'o, Scott Deamond 2005-06-14
6287698 Process for improving hydrolysis resistance of polyurethane dispersion adhesives and bonded assemblies produced therefrom Yuduo Zhu, Peter Gottschalk, Brian L. Marty 2001-09-11