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USPTO Patent Rankings Data through Dec 31, 2025
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Carl R. Morrow — 3 Patents

UNUnknown: 3 patents #7,366 of 83,584Top 9%
Longview, WA: #19 of 90 inventorsTop 25%
Washington: #28,186 of 76,902 inventorsTop 40%
Overall (All Time): #1,328,092 of 4,157,543Top 35%
3 Patents All Time
Carl R. Morrow has been granted 3 US patents while listed as an inventor at Unknown. The first was granted in 1990 and the most recent in July 2014. Carl R. Morrow ranks #1,328,092 of 4,157,543 US inventors in our database (top 31.9%). Patent records list Carl R. Morrow in Longview, WA, US.

Patents per Year

Patents granted per year, 1990 to 2014Bar chart with a peak of 1 patents in 1990.peak 11990: 1 patents19901991: 1 patents19912014: 1 patents2014

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
8791820 Device locking systems, lock trees, and lockout methods G. Jeff Maestretti 2014-07-29
5051724 Key security device G. Jeff Maestretti 1991-09-24
4972863 Rain gutter cleaner 1990-11-27