Inventor · disambiguated record
Martin M. Gram
Also filed as: GRAM MARTIN M
17 granted patents·1 pending application·481 citations·filing 1977–2010
95Inventor score
Top patents by PatentIndex Score
18 records- 0193US4478086ALoad frame crosshead constructionMTS SYSTEM CORP·Filed 1983·Granted Oct 23, 1984·79 cites·18 claims
- 0292US4457684AHydraulic pressMTS SYSTEM CORP·Filed 1983·Granted Jul 3, 1984·35 cites·10 claims
- 0391US4290343AHigh volume poppet valve with orifice opening speed controlMTS SYSTEM CORP·Filed 1978·Granted Sep 22, 1981·58 cites·8 claims
- 0482US5425276AMaterial testing system providing simultaneous force loadsMTS SYSTEM CORP·Filed 1993·Granted Jun 20, 1995·75 cites·24 claims
- 0581US4470787AHydraulic pressMTS SYSTEM CORP·Filed 1983·Granted Sep 11, 1984·23 cites·17 claims
- 0679US8485048B2Torque transfer couplingBUSHEY JOHN A·Filed 2010·Granted Jul 16, 2013·5 cites·26 claims
- 0779US8453522B2Wind turbine drive train test assemblyBUSHEY JOHN A·Filed 2010·Granted Jun 4, 2013·5 cites·23 claims
- 0876US4869112AScrew-driven actuator for test frameMTS SYSTEM CORP·Filed 1988·Granted Sep 26, 1989·46 cites·10 claims
- 0973US5945607ATest specimen holderMTS SYSTEM CORP·Filed 1997·Granted Aug 31, 1999·51 cites·11 claims
- 1068US4905502APressure vessel fatigue test systemMTS SYSTEM CORP·Filed 1989·Granted Mar 6, 1990·27 cites·6 claims
- 1167US4063453AAdjustable space frame for testing machineMTS SYSTEM CORP·Filed 1977·Granted Dec 20, 1977·14 cites·12 claims
- 1258US4843888ASelf aligning test gripMTS SYSTEM CORP·Filed 1988·Granted Jul 4, 1989·22 cites·20 claims
- 1356US7726124B2Blast simulator with high velocity actuatorMTS SYSTEM CORP·Filed 2007·Granted Jun 1, 2010·2 cites·22 claims
- 1452US4318572ATension-compression swivel joint with hydraulic force reactionMTS SYSTEM CORP·Filed 1980·Granted Mar 9, 1982·16 cites·12 claims
- 1541US5491306AMass oscillator having an adjustable gas springMTS SYSTEM CORP·Filed 1994·Granted Feb 13, 1996·14 cites·27 claims
- 1639US4274290ARapid opening, high flow control valve for hydraulic actuatorMTS SYSTEM CORP·Filed 1978·Granted Jun 23, 1981·6 cites·5 claims
- 1736US2003024382A1Lock-up deviceFiled 2002·Application pending·0 cites
- 1832US4809556APreloading clampMTS SYSTEM CORP·Filed 1987·Granted Mar 7, 1989·3 cites·13 claims
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