Inventor · disambiguated record
Richard A. Carlstedt
Also filed as: CARLSTEDT RICHARD A
12 granted patents·358 citations·filing 1977–2010
93Inventor score
Top patents by PatentIndex Score
12 records- 0194US5351844AElastomeric spring unitMINER ENTERPRISES·Filed 1993·Granted Oct 4, 1994·101 cites·3 claims
- 0291US6478173B2Railroad car draft gear having a long travelMINER ENTERPRISES·Filed 2001·Granted Nov 12, 2002·55 cites·16 claims
- 0389US4960215AFriction elastomer draft gearMINER ENTERPRISES·Filed 1988·Granted Oct 2, 1990·53 cites·9 claims
- 0488US7624884B2Railroad car draft gearMINER ENTERPRISES·Filed 2007·Granted Dec 1, 2009·27 cites·20 claims
- 0587US6488162B1Draft gear for a reduced-slack drawbar assemblyMINER ENTERPRISES·Filed 2001·Granted Dec 3, 2002·38 cites·18 claims
- 0676US8365930B2Railcar draft gear spring assembly and method of making an elastomeric spring unitMINER ENTERPRISES·Filed 2010·Granted Feb 5, 2013·5 cites·28 claims
- 0774US4735328ASplit wedge draft gear with center friction plateMINER ENTERPRISES·Filed 1986·Granted Apr 5, 1988·31 cites·10 claims
- 0869US4576295ADraft gear for railroad car coupler systemMINER ENTERPRISES·Filed 1984·Granted Mar 18, 1986·22 cites·7 claims
- 0967US8196912B2Railcar elastomeric springCARLSTEDT RICHARD A·Filed 2009·Granted Jun 12, 2012·8 cites·17 claims
- 1046US4556149ADraft gearMINER ENTERPRISES·Filed 1983·Granted Dec 3, 1985·9 cites·7 claims
- 1142US4111290AThrust bearing with spring clip mountingAETNA BEARING CO·Filed 1977·Granted Sep 5, 1978·6 cites·17 claims
- 1224US5065874APreshortening insert for a draft gearMINER ENTERPRISES·Filed 1990·Granted Nov 19, 1991·3 cites·4 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →