Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
JC

Joseph N Christopher — 4 Patents

ExxonMobil: 3 patents #3,063 of 10,161Top 35%
ANAkzo Nobel N.V.: 1 patents #670 of 1,625Top 45%
League City, TX: #122 of 561 inventorsTop 25%
Texas: #33,915 of 125,132 inventorsTop 30%
Overall (All Time): #1,080,739 of 4,157,543Top 30%
4 Patents All Time
Joseph N Christopher has been granted 4 US patents while listed as an inventor at ExxonMobil. The first was granted in 2002 and the most recent in January 2006. Joseph N Christopher ranks #1,080,739 of 4,157,543 US inventors in our database (top 26.0%). Patent records list Joseph N Christopher in League City, TX, US.

Patents per Year

Patents granted per year, 2002 to 2006Bar chart with a peak of 2 patents in 2002.peak 22002: 2 patents20022004: 1 patents20042006: 1 patents2006

Issued Patents All Time

Showing 1–4 of 4 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
6984722 Cationic group 3 catalyst system Kevin R. Squire, Jo Ann M. Canich, Timothy D. Shaffer 2006-01-10 $331,962,000
6677441 Cationic group 3 catalyst system Kevin R. Squire, Jo Ann M. Canich, Timothy D. Shaffer 2004-01-13 $93,729,000
6482968 Purification of an organometallic compound Nam H. Tran, Timothy J. Michalec 2002-11-19 $1,724,000
6403773 Cationic group 3 catalyst system Kevin R. Squire, Jo Ann M. Canich, Timothy D. Shaffer 2002-06-11 $453,189,000