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

Donald E. Firstenberg — 1 Patent

L'L'Oreal: 1 patents #1,282 of 2,221Top 60%
Edison, NJ: #830 of 1,355 inventorsTop 65%
New Jersey: #41,444 of 69,400 inventorsTop 60%
Overall (All Time): #2,406,284 of 4,157,543Top 60%
1 Patents All Time
Donald E. Firstenberg has been granted 1 US patent while listed as an inventor at L'Oreal. All of these patents were granted in 1994. Donald E. Firstenberg ranks #2,406,284 of 4,157,543 US inventors in our database (top 57.9%). Patent records list Donald E. Firstenberg in Edison, NJ, US.

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
5297566 Method and device for increasing the volume of a head of hair Martha L. Huff, Edward Carhart, Donald Warren, Herbert R. Umstead, Roland De La Mettrie +3 more 1994-03-29