John Roberts has been granted 9 US patents while listed as an inventor at Railserve . The first was granted in 1984 and the most recent in March 2024. John Roberts ranks #535,341 of 4,157,543 US inventors in our database (top 12.9%). Patent records list John Roberts in Chicago, IL, US.
Patents per Year Patents granted per year, 1984 to 2024 Bar chart with a peak of 3 patents in 2020. peak 3 1984: 1 patents 1984 2017: 1 patents 2017 2019: 2 patents 2019 2020: 3 patents 2020 2021: 1 patents 2021 2024: 1 patents 2024
Issued Patents All Time
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Showing 1–9 of 9 patents
Patent # Title Co-Inventors Date
11932294 Anti-collision device and system for use with a railcar Timothy J. Benjamin , Peter M. Bartek 2024-03-19
11192565 Anti-collision device and system for use with a railcar Timothy J. Benjamin , Peter M. Bartek 2021-12-07
10864929 Railyard crew member helmet for use within a railyard Jon A. Preston , Chris Burgess , Jeff Chastine 2020-12-15
10814894 Railyard crew member vest for use within a railyard Jon A. Preston , Chris Burgess , Jeff Chastine , Anthony J. Giertych 2020-10-27
10562553 Railyard crew member vest for use within a railyard Jon A. Preston , Chris Burgess , Jeff Chastine , Anthony J. Giertych 2020-02-18
10457302 Emergency action system for use with a locomotive Timothy J. Benjamin , Peter M. Bartek 2019-10-29
10272932 Anti-collision device and system for use with a rail car Timothy J. Benjamin , Peter M. Bartek 2019-04-30
9776648 Emergency action system for use with a locomotive Timothy J. Benjamin , Peter M. Bartek 2017-10-03
4456024 Freeze protection valve assembly — 1984-06-26