In summary, inventors from Japan, Germany, and Korea unsurprisingly took the dominant positions in the technological field over the last five years. Chinese representatives were the leaders in prosecuting transport-related cases that predominantly originated from domestic clients, accounting for a substantial 75% of the total patent filings prosecuted by the Top 100 patent attorney firms in transport. In Europe, German and British firms represented the highest portion of relevant applications, most of which were from foreign inventors. Patent agents from France and Italy also held high rankings albeit handling patent filings for mostly local clients.
Considering international case exchanges, patent law firms from China, America, and Japan were top senders of referral work in transport (based on overall numbers) but European (French and Italian) representatives took leading positions in the ranking.