John A. Cleverley has been granted 10 US patents while listed as an inventor at ExxonMobil . The first was granted in 1985 and the most recent in May 2003. John A. Cleverley ranks #481,000 of 4,157,543 US inventors in our database (top 11.6%). Patent records list John A. Cleverley in Felton, GB.
Patents per Year Patents granted per year, 1985 to 2003 Bar chart with a peak of 2 patents in 1989. peak 2 1985: 1 patents 1985 1989: 2 patents 1989 1990: 1 patents 1990 1996: 1 patents 1996 1999: 2 patents 1999 2000: 1 patents 2000 2001: 1 patents 2001 2003: 1 patents 2003
Issued Patents All Time
Profile Widget
Showing 1–10 of 10 patents
Patent # Title Co-Inventors Date Approx Value ⓘ
6569821 Overbased metal detergents Tuncel Ibrahim , Phillip Skinner , Jane Galsworthy , Christopher Adams , Rudi ter Haar 2003-05-27
6211123 Lubricating oil compositions Alisdair Brown , Ian Bell , Jose Manuel Gomes , Edward I. Stiefel , Jonathan M. McConnachie 2001-04-03
6153564 Lubricating oil compositions Velautha-Cumaran Arunasalam , Ian Bell , Ronald P. Wangner 2000-11-28
5922655 Magnesium low rate number sulphonates Dominique Moulin , Charles Herbert Bovington 1999-07-13
$348,507,000
5883056 Magnesium low base number sulphonates Dominique Moulin , Charles Herbert Bovington 1999-03-16
$172,243,000
5534168 Preparation of overbased magnesium sulphonates Robert A. Wardle , Joseph M. Swietlik , John F. Marsh , Jeremy Spencer 1996-07-09
$165,327,000
4957642 Magnesium phenate detergents John F. Marsh , Philip Skinner , Gaynor M. Miasik 1990-09-18
$96,465,000
4839094 Overbased alkali metal additives John F. Marsh 1989-06-13
$16,755,000
4797217 Overbased additives — 1989-01-10
$55,825,000
4557872 Basic alkaline earth metal sulphonates John F. Marsh , Dennis J. Simpkin 1985-12-10
$12,960,000
