Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
Home › Inventors › Bert Steffens
BS

Bert Steffens — 3 Patents

Andernach, DE: #16 of 68 inventorsTop 25%
Overall (All Time): #1,328,092 of 4,157,543Top 35%
3 Patents All Time
Bert Steffens has been granted 3 US patents. The first was granted in 1981 and the most recent in May 1987. Bert Steffens ranks #1,328,092 of 4,157,543 US inventors in our database (top 31.9%). Patent records list Bert Steffens in Andernach, DE.

Patents per Year

Patents granted per year, 1981 to 1987Bar chart with a peak of 1 patents in 1981.peak 11981: 1 patents19811985: 1 patents19851987: 1 patents1987

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
4664320 Apparatus for separating the components of cellulose sanitary articles — 1987-05-12
4500040 Method and apparatus for separating the components of cellulose sanitary articles — 1985-02-19
4303501 Process for the continuous separation of discarded hygiene articles into their components — 1981-12-01

Nearby-Ranked Inventors

Daniel Silion3
Hangfeng Li3
Mark Vander Wal3
Chad M. Goltzman3
Sathish Kumar Thanganathan3
Debbie Maloyd3
Ethan Alexander Garrett3
Paul Sabatka3
Sergii Bomko3