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

Kenneth Littlejohn — 3 Patents

REReltec: 2 patents #4 of 39Top 15%
UFUS Air Force: 1 patents #6,232 of 16,312Top 40%
Northlake, IL: #11 of 45 inventorsTop 25%
Illinois: #26,899 of 84,256 inventorsTop 35%
Overall (All Time): #1,328,092 of 4,157,543Top 35%
3 Patents All Time
Kenneth Littlejohn has been granted 3 US patents while listed as an inventor at Reltec. The first was granted in 1998 and the most recent in January 2021. Kenneth Littlejohn ranks #1,328,092 of 4,157,543 US inventors in our database (top 31.9%). Patent records list Kenneth Littlejohn in Northlake, IL, US.

Patents per Year

Patents granted per year, 1998 to 2021Bar chart with a peak of 1 patents in 1998.peak 11998: 1 patents19981999: 1 patents19992021: 1 patents2021

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
10901928 Data access control in an open system architecture Vahid M. Rajabian-Schwart, Nicholas S. Kovach 2021-01-26
5961340 Wire trimmer Jane X. Lee 1999-10-05
5779504 Modular terminal block assembly Robert M. Dominiak, Richard T. Kaczmarek, Janet A. Bradshaw, Wayne G. Haines, Michael J. Bascom 1998-07-14 $34,627,000