Inventor · disambiguated record
Karl J. Kallenberg
Also filed as: KALLENBERG KARL J
3 granted patents·29 citations·filing 1988–1988
69Inventor score
Technology areasG03B
Files withLIFETOUCH NATIONAL SCHOOL STUD3
Top patents by PatentIndex Score
3 records- 0172US4843410ACamera and projector alignment for front screen projection systemLIFETOUCH NATIONAL SCHOOL STUD·Filed 1988·Granted Jun 27, 1989·16 cites·16 claims
- 0256US4832482AFilm transparency slide carrier and conveyor system for front screen projection systemLIFETOUCH NATIONAL SCHOOL STUD·Filed 1988·Granted May 23, 1989·9 cites·8 claims
- 0342US4847645AImage projectors with pivoting mirror in front screen projection systemLIFETOUCH NATIONAL SCHOOL STUD·Filed 1988·Granted Jul 11, 1989·4 cites·14 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →