Inventor · disambiguated record

Lief A. Johansson

Also filed as: JOHANSSON LIEF A

2 granted patents·45 citations·filing 1985–1988

63Inventor score

Technology areasG03B

Files withMEDRAD INC2

Top patents by PatentIndex Score

2 records

0188US4924486AFilm-receiving cassette having spiral guide plateMEDRAD INC·Filed 1988·Granted May 8, 1990·36 cites·8 claims
0260US4782504AMethod and apparatus for an improved programmable X-ray film changerMEDRAD INC·Filed 1985·Granted Nov 1, 1988·9 cites·26 claims

Join the waitlist — get patent alerts

Get an alert when Lief A. Johansson files or is granted a new patent.

We store only your email — no account needed. See our privacy policy.

Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →