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

William A. Colburn — 3 Patents

PDProcess Development: 1 patents #3 of 5Top 60%
Denver, CO: #1,276 of 4,554 inventorsTop 30%
Colorado: #13,288 of 40,980 inventorsTop 35%
Overall (All Time): #1,328,092 of 4,157,543Top 35%
3 Patents All Time
William A. Colburn has been granted 3 US patents while listed as an inventor at Process Development. The first was granted in 1983 and the most recent in May 2005. William A. Colburn ranks #1,328,092 of 4,157,543 US inventors in our database (top 31.9%). Patent records list William A. Colburn in Denver, CO, US.

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
6895743 Liquid propellant rocket motor Terry McElheran 2005-05-24
4391411 Method and apparatus for pulverizing materials by vacuum comminution 1983-07-05
4368387 Method of separating isotopes 1983-01-11