CM

Charles A. Marttila

3M: 28 patents #395 of 11,543Top 4%
📍 Shoreview, MN: #48 of 657 inventorsTop 8%
🗺 Minnesota: #2,175 of 52,454 inventorsTop 5%
Overall (All Time): #137,954 of 4,157,543Top 4%
28
Patents All Time

Issued Patents All Time

Showing 26–28 of 28 patents

Patent #TitleCo-InventorsDate
5813180 Privacy enclosure Leland R. Whitney, Thomas J. Scanlan, Ronald W. Gerdes, David W. Schilling, Joseph G. Mandell +1 more 1998-09-29
5658656 Use of materials comprising microbubbles as acoustical barriers Leland R. Whitney, Michael W. Dolezal, Ronald W. Gerdes, Gary N. Harvieux, Joseph G. Mandell +1 more 1997-08-19
5504281 Perforated acoustical attenuators Leland R. Whitney, Thomas J. Scanlan, Joseph G. Mandell 1996-04-02