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

Robert Johnston — 3 Patents

General Motors: 2 patents #6,303 of 18,328Top 35%
Delphi Technologies: 1 patents #2,130 of 4,124Top 55%
Davison, MI: #41 of 153 inventorsTop 30%
Michigan: #27,426 of 86,293 inventorsTop 35%
Overall (All Time): #1,328,092 of 4,157,543Top 35%
3 Patents All Time
Robert Johnston has been granted 3 US patents while listed as an inventor at General Motors. The first was granted in 1995 and the most recent in February 2008. Robert Johnston ranks #1,328,092 of 4,157,543 US inventors in our database (top 31.9%). Patent records list Robert Johnston in Davison, MI, US.

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
7335341 Method for securing ceramic structures and forming electrical connections on the same Thomas Hubert Van Steenkiste, Joseph V. Mantese, Bob Li, Pertrice Auguste Wethey, David Emil Nelson 2008-02-26
5427722 Pressure slip casting process for making hollow-shaped ceramics Richard Fouts 1995-06-27
5421300 Torch jet spark plug Harold Durling, Kaius K. Polikarpus 1995-06-06