Inventor · disambiguated record
David W. Berg
Also filed as: BERG DAVID M · BERG DAVID W
13 granted patents·1 pending application·519 citations·filing 1975–2019
94Inventor score
Top patents by PatentIndex Score
14 records- 0192US6070679APowered utility cart having engagement adaptersLINDBERGH MANUFACTURING INC·Filed 1997·Granted Jun 6, 2000·131 cites·7 claims
- 0289US6117200AElectromagnetic filter cleaning systemTENNANT CO·Filed 1998·Granted Sep 12, 2000·65 cites·13 claims
- 0389USD273620SPower sweeperTENNANT CO·Filed 1982·Granted Apr 24, 1984·28 cites·1 claims
- 0487US5088149AVacuum powered scrub headTENNANT CO·Filed 1990·Granted Feb 18, 1992·85 cites·12 claims
- 0583US6096383ACuring of floor coatings using long and short wave ultraviolet radiationTENNANT CO·Filed 1999·Granted Aug 1, 2000·61 cites·18 claims
- 0682US4121840ASeal assemblyTOL O MATIC INC·Filed 1977·Granted Oct 24, 1978·22 cites·10 claims
- 0775US4729141ADisc brush suspension for a floor maintenance machineTENNANT CO·Filed 1987·Granted Mar 8, 1988·40 cites·5 claims
- 0859US4057257ASeal assemblyTOL O MATIC INC·Filed 1977·Granted Nov 8, 1977·13 cites·10 claims
- 0956US5884353ASweeper with hopper heat shieldTENNANT CO·Filed 1997·Granted Mar 23, 1999·23 cites·5 claims
- 1054US6125495AVariable diameter cleaning brushTENNANT CO·Filed 1998·Granted Oct 3, 2000·27 cites·11 claims
- 1145US11083942B2Flag release system and methodDB3 LLC·Filed 2019·Granted Aug 10, 2021·0 cites·11 claims
- 1245US5940929ASurface maintenance machine with improved dust collection systemTENNANT CO·Filed 1997·Granted Aug 24, 1999·16 cites·6 claims
- 1345US4053036AWheel brake assemblyTOL O MATIC INC·Filed 1975·Granted Oct 11, 1977·8 cites·12 claims
- 1441US2004066505A1Apparatus and method to inspect objectsFiled 2002·Application pending·0 cites
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