Patent Leaderboard
USPTO Patent Rankings Data through Sept 30, 2025
DL

David Laffan

LOLonza: 11 patents #24 of 658Top 4%
SCSankyo Holdings Co.: 4 patents #171 of 700Top 25%
Astrazeneca Ab: 2 patents #673 of 1,971Top 35%
KLKudos Pharmaceuticals Limited: 2 patents #31 of 62Top 50%
ALAstrazeneca Uk Limited: 1 patents #73 of 159Top 50%
SCShionogi & Co.: 1 patents #620 of 1,054Top 60%
Macclesfield, GB: #21 of 425 inventorsTop 5%
Overall (All Time): #298,292 of 4,157,543Top 8%
16 Patents All Time

Issued Patents All Time

Showing 1–16 of 16 patents

Patent #TitleCo-InventorsDate
9371291 Process for the manufacture of the calcium salt of rosuvastatin (E)-7-[4-(4-fluorophenyl)-6-isopropyl-2-[methyl(methylsulfonyl)amino]-pyrimidin-5-yl](3R,5S)-3,5-Dihydroxyhept-6-enoic acid and crystalline intermediates thereof Tetsuo Okada, John Horbury 2016-06-21
8450482 Process for the preparation of 4-(3-chloro-2-fluoroanilino)-7-methoxy-6-([1-(N-methylcarbamoymethyl)piperidin-4-yl]oxy)quinazoline Kay Alison Boardman, Oliver Robert Cunningham, William Robert Fraser Goundry 2013-05-28
8247416 Phthalazinone derivative Keith Allan Menear, Anthony Peter Ottridge, Derek John Londesbrough, Michael Raymond Hallett, Keith Raymond Mulholland +4 more 2012-08-21
7947667 Process and intermediates for the production of 7-substituted antiestrogens Robert Stevenson, Fraser Witton Kerr, Anthony Raymond Lane, Eve Joanne Brazier, Phillip Hogan 2011-05-24
7692006 Phthalazinone derivatives Keith Allan Menear, Anthony Peter Ottridge, Derek John Londesbrough, Michael Raymond Hallett, Keith Raymond Mulholland +4 more 2010-04-06
6075145 Catalysts containing zirconium oxide Josef Heveling, Alain Wellig 2000-06-13
5371237 Process for the production of 4-hydroxy-2-oxopyrrolidin-1-yl-acetamide Markus Bänziger, John McGarrity 1994-12-06
5364946 Process for the preparation of substituted pentaalkylchromenes 1994-11-15
5344963 Process for the production of substituted vinylbenzenes Aleksander Warm 1994-09-06
5313007 Substituted pentaalkylchromans 1994-05-17
5310953 Substituted pentaalkylchromans 1994-05-10
5304663 Process for the preparation of substituted pentaalkylchromenes 1994-04-19
5292748 Process for the production of substituted vinylbenzenes Aleksander Warm 1994-03-08
5276164 Process for the production of 4-hydroxy-2-oxopyrrolidin-1-yl-acetamide Markus Bänziger, John McGarrity 1994-01-04
5274176 Process for the production of substituted vinylbenzenes Aleksander Warm 1993-12-28
5200531 Process for the production of threo-4-alkoxy-5- (arylhydroxymethyl)-2(5H)-furanones 1993-04-06