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Robert W. Grace, Sr. — 3 Patents

UNUnknown: 1 patents #29,356 of 83,584Top 40%
Sandusky, OH: #22 of 125 inventorsTop 20%
Ohio: #23,545 of 73,341 inventorsTop 35%
Overall (All Time): #1,328,092 of 4,157,543Top 35%
3 Patents All Time
Robert W. Grace, Sr. has been granted 3 US patents while listed as an inventor at Unknown. The first was granted in 1986 and the most recent in August 1993. Robert W. Grace, Sr. ranks #1,328,092 of 4,157,543 US inventors in our database (top 31.9%). Patent records list Robert W. Grace, Sr. in Sandusky, OH, US.

Patents per Year

Patents granted per year, 1986 to 1993Bar chart with a peak of 1 patents in 1986.peak 11986: 1 patents19861992: 1 patents19921993: 1 patents1993

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
5238349 Article sorting and retrieval system — 1993-08-24
5111963 Container storage and dispensing apparatus — 1992-05-12
4621745 Mechanized carton picker — 1986-11-11

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