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Ann K. Duffy

General Motors: 2 patents #6,250 of 18,328Top 35%
📍 Lake Orion, MI: #286 of 676 inventorsTop 45%
🗺 Michigan: #35,034 of 86,293 inventorsTop 45%
Overall (All Time): #1,943,214 of 4,157,543Top 50%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
10040432 Systems and methods for promoting cleanliness of a vehicle Louise E. Stauffer, Spencer W. Chamberlain, Joseph Neighbors, Mary E. Decaluwe, Jim K. Rainbolt +9 more 2018-08-07
9855926 Systems and methods for promoting cleanliness of a vehicle Louise E. Stauffer, Sandra N. Thomson, Spencer W. Chamberlain, Joseph Neighbors, Mary E. Decaluwe +4 more 2018-01-02