Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
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Simon Peter Crabtree — 6 Patents

DLDavy Process Technology Limited: 6 patents #7 of 65Top 15%
Durham, GB: #23 of 202 inventorsTop 15%
Overall (All Time): #779,687 of 4,157,543Top 20%
6 Patents All Time
Simon Peter Crabtree has been granted 6 US patents while listed as an inventor at Davy Process Technology Limited. The first was granted in 2006 and the most recent in May 2017. Simon Peter Crabtree ranks #779,687 of 4,157,543 US inventors in our database (top 18.8%). Patent records list Simon Peter Crabtree in Durham, GB.

Patents per Year

Patents granted per year, 2006 to 2017Bar chart with a peak of 1 patents in 2006.peak 12006: 1 patents20062008: 1 patents20082009: 1 patents20092010: 1 patents20102015: 1 patents20152017: 1 patents2017

Issued Patents All Time

Showing 1–6 of 6 patents

Patent #TitleCo-InventorsDate
9636671 Homogeneous process for the hydrogenation of carboxylic acids and derivatives thereof Melvyn Kilner, Derek Vincent Tyers, Michael Anthony Wood 2017-05-02
9035080 Process for recovering homogeneous metal hydride catalysts Robert Wild, Simon Wayne Jackson, James Andrew Banister 2015-05-19
7709689 Homogenous process for the hydrogenation of carboxylic acids and derivatives thereof Melvyn Kilner, Derek Vincent Tyers, Michael Anthony Wood 2010-05-04
7498450 Homogeneous process for the hydrogenation of dicarboxylic acids and/or anhydrides thereof Michael Anthony Wood, Derek Vincent Tyers 2009-03-03
7427684 Process for the production of lactams Derek Vincent Tyers, Mohammed Sharif 2008-09-23
6982357 PROCESS FOR THE PREPARATION OF PROPANE-1,3-DIOL BY VAPOR PHASE HYDROGENATION OF 3-HYDROXYPROPANAL, BETA-PROPIOLACTONE, OLIGOMERS OF BETA-PROPIOLACTONE, ESTERS OF 3-HYDROXYPROPANOIC ACID OR MIXTURES THEREOF Richard Henderson 2006-01-03