John L. Harmsen

📍 Vienna, VA: #205 of 839 inventorsTop 25%

🗺 Virginia: #7,477 of 34,511 inventorsTop 25%

Overall (All Time): #1,307,055 of 4,157,543Top 35%

Patents All Time

Issued Patents All Time

Showing 1–4 of 4 patents

Patent #	Title	Co-Inventors	Date
4609144	Railroad tie cover	—	1986-09-02
4489884	Railroad tie cover	—	1984-12-25
4356968	Railroad tie cover	—	1982-11-02
4266720	Rail fastener	—	1981-05-12