Inventor · disambiguated record
Sven Oldfelt
Also filed as: OLDFELT SVEN
11 granted patents·492 citations·filing 1978–1994
93Inventor score
Top patents by PatentIndex Score
11 records- 0193US4713847AVacuum toilet systemWAERTSILAE OY AB·Filed 1987·Granted Dec 22, 1987·119 cites·14 claims
- 0286US5007117AVacuum toilet system with simultaneous rinse and dischargeWAERTSILAE OY AB·Filed 1988·Granted Apr 16, 1991·62 cites·18 claims
- 0383US5245711AVacuum toilet systemWAERTSILAE OY AB·Filed 1989·Granted Sep 21, 1993·43 cites·9 claims
- 0483US5165457AVacuum sewer arrangementWAERTSILAE OY AB·Filed 1991·Granted Nov 24, 1992·43 cites·13 claims
- 0579US5692250AVacuum toilet system with treated rinse liquidWAERTSILAE OY AB·Filed 1994·Granted Dec 2, 1997·33 cites·23 claims
- 0679US4928326AVacuum sewer arrangementWAERTSILAE OY AB·Filed 1988·Granted May 29, 1990·40 cites·17 claims
- 0779US4246925AWaste water vacuum conveyance method and apparatusELECTROLUX AB·Filed 1978·Granted Jan 27, 1981·28 cites·3 claims
- 0873US5454936AVacuum toilet systemWAERTSILAE OY AB·Filed 1993·Granted Oct 3, 1995·41 cites·36 claims
- 0966US5002592AWaste tank for a vacuum sewage systemWAERTSILAE OY AB·Filed 1989·Granted Mar 26, 1991·30 cites·23 claims
- 1058US5421040AVacuum toilet systemMETRA OY AB·Filed 1993·Granted Jun 6, 1995·32 cites·4 claims
- 1151US4704047ALand drainage systemWAERTSILAE OY AB·Filed 1986·Granted Nov 3, 1987·21 cites·17 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →