Dr. Gassner & Partner mbB

Depatisnet
http://depatisnet.dpma.de/DepatisNet/depatisnet?window=1&space=main&content=index&action=index&switchToLang=en

DPMAregister
http://register.dpma.de/DPMAregister/uebersicht

Espacenet
http://worldwide.espacenet.com/?locale=en_EP

Epoline
http://www.epoline.org/portal/public

Google Patents
http://www.google.com/patents

USPTO
http://patft.uspto.gov/

USPTO Inspection of files
http://www.uspto.gov/patents/process/status/index.jsp

Community trademarks
http://oami.europa.eu/CTMOnline/RequestManager/en_SearchBasic

Community design patents
http://oami.europa.eu/RCDOnline/RequestManager

International Patent Applications (PCT)
http://www.wipo.int/pctdb/en/

International Trademarks
http://www.wipo.int/romarin