ENTWICKLUNGSGESELLSCHAFT FUR AKUSTIK (EFA) MIT BESCHRANKTER HATFTUNG
Patent Owner
Stats
- 1 US PATENTS IN FORCE
- 0 US APPLICATIONS PENDING
- Dec 27, 2007 most recent publication
Details
- 1 Issued Patents
- 0 Issued in last 3 years
- 0 Published in last 3 years
- 42 Total Citation Count
- Sep 01, 2001 Earliest Filing
- 2 Expired/Abandoned/Withdrawn Patents
Patent Activity in the Last 10 Years
Technologies
Intl Class
Technology
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Expired/Abandoned/Withdrawn Patents
Patent #
Title
Status
Filing Date
Issue/Pub Date
Intl Class
2007/0298,215 Floor covering having a strong noise-reducing propertiesAbandonedJun 27, 07Dec 27, 07[B32B]
6820720 Sound-absorbing article effective over a broad frequency rangeExpiredFeb 11, 02Nov 23, 04[G10K]
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