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USPTO Patent Rankings Data through Dec 31, 2025
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Rodney Riddle — 13 Patents

Merck: 13 patents #853 of 9,382Top 10%
Poole, GB: #5 of 119 inventorsTop 5%
Overall (All Time): #362,438 of 4,157,543Top 9%
13 Patents All Time
Rodney Riddle has been granted 13 US patents while listed as an inventor at Merck. The first was granted in 1993 and the most recent in February 2009. Rodney Riddle ranks #362,438 of 4,157,543 US inventors in our database (top 8.7%). Patent records list Rodney Riddle in Poole, GB.

Issued Patents All Time

Showing 1–13 of 13 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
7495740 Birefringent marking Robert Hammond-Smith, John Patrick, Matthias Kuntz, Michael Ukelis, Peter Schmitt +1 more 2009-02-24 $90,933,000
7344762 Printable liquid crystal material Robert Hammond-Smith, John Patrick 2008-03-18 $68,890,000
7297292 Flakes comprising non-chiral liquid crystal material Robert Hammond-Smith, John Patrick 2007-11-20 $107,484,000
7083834 Method of preparing an anisotropic polymer film on a substrate with a structured surface Matthias Kuntz, John Patrick, Guy Gregory, Tony Bleasdale, Robert Hammond-Smith +2 more 2006-08-01 $96,338,000
7081282 Optically variable marking Matthias Kuntz, Reiner Delp, John Patrick, Robert Hammond-Smith 2006-07-25 $242,130,000
7041233 Method of generating a 3-dimensional effect Matthias Kuntz, John Patrick, Robert Hammond-Smith 2006-05-09 $54,457,000
7033653 Birefringent marking Matthias Kuntz, Robert Hammond-Smith, John Patrick, Donald Gordon Graham 2006-04-25 $31,360,000
6641874 Multilayer reflective film or pigment with viewing angle dependent reflection characteristics Matthias Kuntz, Hans-Dieter Brueckner, David Coates 2003-11-04 $71,768,000
6419736 Sulfide and oxysulphide pigments Gerhard Pfaff, Matthias Kuntz, Reiner Vogt, Sabine Schoen, Wolf-Dietrich Weber 2002-07-16 $49,255,000
5814585 Bi(Pb)SrCaCuO superconductors Matthias Kuntz, Bernd H. Müller, Dietmar Raulin, Gunther Feldmann-Schlobohm 1998-09-29 $307,746,000
5753026 Process for the preparation of inclusion pigments Mathias Kuntz, Hubert Linne, Joachim Weitzel, Dieter Heinz 1998-05-19 $131,585,000
5614472 Spray-pyrolysis process of preparing superconductor precursors Matthias Kuntz, Bernd M uller, Dietmar Raulin, G unther Feldmann-Schlobohm 1997-03-25 $47,299,000
5177055 Process for the preparation of superconductor precursor metal oxide powders comprising spraying a mixed metal salt solution into a horizontal furnace Barry Edward Kinsman, Anthony Wilson 1993-01-05 $23,105,000