Inventor · disambiguated record
Alfred K. Tengan
Also filed as: TENGAN ALFRED K · TENGAN ALFRED KOTATSU
5 granted patents·62 citations·filing 1979–2000
79Inventor score
Top patents by PatentIndex Score
5 records- 0170US6419606B1Aircraft control surface drive apparatusEATON CORP·Filed 2000·Granted Jul 16, 2002·37 cites·32 claims
- 0251US6298661B1Energy efficient hydraulic motor control systemEATON CORP·Filed 1999·Granted Oct 9, 2001·12 cites·7 claims
- 0341US4244398ACheck valve assembly having valve opening prior to passing flow and flow shut off prior to valve closingMOOG INC·Filed 1979·Granted Jan 13, 1981·7 cites·10 claims
- 0427US5937990ATransmission with load brakeGEC MARCONI AEROSPACE INC·Filed 1998·Granted Aug 17, 1999·4 cites·15 claims
- 0526US5235873ABacklash eliminatorHYDRAULIC UNITS INC·Filed 1991·Granted Aug 17, 1993·2 cites·22 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →