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

David Rowland — 8 Patents

UNUnknown: 4 patents #4,220 of 83,584Top 6%
MGMorgan Stanley Services Group: 1 patents #593 of 627Top 95%
San Diego, CA: #5,211 of 23,606 inventorsTop 25%
California: #74,834 of 386,348 inventorsTop 20%
Overall (All Time): #600,572 of 4,157,543Top 15%
8 Patents All Time
David Rowland has been granted 8 US patents while listed as an inventor at Unknown. The first was granted in 1991 and the most recent in June 2012. David Rowland ranks #600,572 of 4,157,543 US inventors in our database (top 14.4%). Patent records list David Rowland in San Diego, CA, US.

Patents per Year

Patents granted per year, 1991 to 2012Bar chart with a peak of 2 patents in 1992.peak 21991: 1 patents19911992: 2 patents19921993: 2 patents19931994: 1 patents19942011: 1 patents20112012: 1 patents2012

Issued Patents All Time

Showing 1–8 of 8 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
8209250 Systems and methods for conducting an interactive financial simulation Robert A Bradway, Michael Tory, Nicolas Turner, Simon Gregory Smith, Wayne W F Woo +3 more 2012-06-26 $154,212,000
8024276 Method for interactive learning and training Douglas Drane, Paula Fracasso 2011-09-20
5320049 Tubular pedestal assembly 1994-06-14
5222701 Wall mounted support for holding articles 1993-06-29
D334530 Holder for flexible elements, including wire, cords and rubber hoses 1993-04-06
5093964 Clip for holding flexible elements such as wire, hose, etc. 1992-03-10
D323972 Flexible element holder 1992-02-18
5062184 Clip for holding elongated devices 1991-11-05