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USPTO Patent Rankings Data through Dec 31, 2025
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Bertil Engstrom — 2 Patents

Svenstrup, DK: #19 of 71 inventorsTop 30%
Overall (All Time): #1,709,992 of 4,157,543Top 45%
2 Patents All Time
Bertil Engstrom has been granted 2 US patents. The first was granted in 1986 and the most recent in April 1993. Bertil Engstrom ranks #1,709,992 of 4,157,543 US inventors in our database (top 41.1%). Patent records list Bertil Engstrom in Svenstrup, DK.

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
5199544 Coin operated lock for delivering a locking means secured in said lock Aage Lenander 1993-04-06
4591445 Method for separating bacteria from a bacteria containing liquid sample Max Spinell 1986-05-27