Boon Keng Lim — 2 Patents at Kajima

Boon Keng Lim has been granted 2 US patents while listed as an inventor at Kajima. The first was granted in 1998 and the most recent in September 2000. Boon Keng Lim ranks #1,709,992 of 4,157,543 US inventors in our database (top 41.1%). Patent records list Boon Keng Lim in Chofu, JP.

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #	Title	Co-Inventors	Date
6123777	Method for cleaning structural surface	Nobuo Sakurai, Hanako Nagai, Gun-ichi Kobayashi	2000-09-26
5779811	Method for peeling off dirt from wall surface by using peelable polymer membrane	Minori Machii, Nobuyoshi Nanba, Noboru SAKATA, Nobuo Sakurai, Yasuhiko Furusawa	1998-07-14

Boon Keng Lim — 2 Patents

Issued Patents All Time

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