Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
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John N. Shell — 9 Patents

DEDepomed: 9 patents #5 of 26Top 20%
Lincoln, CA: #18 of 144 inventorsTop 15%
California: #67,547 of 386,348 inventorsTop 20%
Overall (All Time): #535,341 of 4,157,543Top 15%
9 Patents All Time
John N. Shell has been granted 9 US patents while listed as an inventor at Depomed. The first was granted in 2004 and the most recent in March 2017. John N. Shell ranks #535,341 of 4,157,543 US inventors in our database (top 12.9%). Patent records list John N. Shell in Lincoln, CA, US.

Patents per Year

Patents granted per year, 2004 to 2017Bar chart with a peak of 2 patents in 2015.peak 22004: 1 patents20042010: 1 patents20102011: 1 patents20112012: 1 patents20122014: 1 patents20142015: 2 patents20152017: 2 patents2017

Issued Patents All Time

Showing 1–9 of 9 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
9597338 Shell-and-core dosage form approaching zero-order drug release Bret Berner, Jenny Louie-Helm 2017-03-21 $11,022,000
9572780 Dual drug dosage forms with improved separation of drugs Jong Chul LIM, Jenny Louie-Helm 2017-02-21 $12,770,000
8999388 Dual drug dosage forms with improved separation of drugs Jong Chul LIM, Jenny Louie-Helm 2015-04-07 $8,776,000
8945619 Shell-and-core dosage form approaching zero-order drug release Bret Berner, Jenny Louie-Helm, Gloria M. Gusler 2015-02-03 $12,781,000
8685450 Dual drug dosage forms with improved separation of drugs Jong Chul LIM, Jenny Louie-Helm 2014-04-01 $6,640,000
8329215 Shell and core dosage form approaching zero-order drug release Bret Berner, Jenny Louie-Helm, Gloria M. Gusler 2012-12-11 $1,355,000
8043630 Shell-and-core dosage form approaching zero-order drug release Bret Berner, Jenny Louie-Helm, Gloria M. Gusler 2011-10-25 $3,845,000
7736667 Shell-and-core dosage form approaching zero-order drug release Bret Berner, Jenny Louie-Helm, Gloria M. Gusler 2010-06-15 $2,475,000
6682759 Manufacture of oral dosage forms delivering both immediate-release and sustained-release drugs Jong Chul LIM 2004-01-27 $3,751,000