Frank R. Laurenz

AL Agricultural Research And Development Limited Liability: 3 patents #3 of 4Top 75%

📍 Eagle Butte, SD: #1 of 2 inventorsTop 50%

🗺 South Dakota: #384 of 2,308 inventorsTop 20%

Overall (All Time): #1,310,029 of 4,157,543Top 35%

Patents All Time

Issued Patents All Time

Showing 1–4 of 4 patents

Patent #	Title	Co-Inventors	Date
4280447	Animal facility equipment	—	1981-07-28
4260137	Electric gate with semi-protected electrode	—	1981-04-07
4248406	Barn scraper drive assembly	—	1981-02-03
4243137	Barn or pit floor scraper assembly and drive means therefor	—	1981-01-06