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Robert C. Clapper — 4 Patents

DMDci Marketing: 2 patents #14 of 43Top 35%
MCMilwaukee Sign Co.: 2 patents #2 of 4Top 50%
Racine, WI: #299 of 1,018 inventorsTop 30%
Wisconsin: #10,875 of 40,088 inventorsTop 30%
Overall (All Time): #1,080,739 of 4,157,543Top 30%
4 Patents All Time
Robert C. Clapper has been granted 4 US patents while listed as an inventor at Dci Marketing. The first was granted in 1982 and the most recent in April 1999. Robert C. Clapper ranks #1,080,739 of 4,157,543 US inventors in our database (top 26.0%). Patent records list Robert C. Clapper in Racine, WI, US.

Patents per Year

Patents granted per year, 1982 to 1999Bar chart with a peak of 1 patents in 1982.peak 11982: 1 patents19821989: 1 patents19891997: 1 patents19971999: 1 patents1999

Issued Patents All Time

Showing 1–4 of 4 patents

Patent #TitleCo-InventorsDate
5896688 Scrolling sign with manually operated change mechanism Robert B. Aiken, Sr. 1999-04-27
5598651 Sign mechanism having traversable web Robert B. Aiken, Sr. 1997-02-04
4807779 Tamper-proof display and dispensing apparatus — 1989-02-28
4337588 Digital spring roll display device — 1982-07-06

Frequent Collaborators

Robert B. Aiken, Sr.2 shared

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