Inventor · disambiguated record
Derald H. Kraft
Also filed as: KRAFT DERALD H
20 granted patents·568 citations·filing 1975–1983
96Inventor score
Top patents by PatentIndex Score
20 records- 0197US4285676AMechanical belt tensioner constructionDYNEER CORP·Filed 1979·Granted Aug 25, 1981·80 cites·9 claims
- 0292US4270906ABelt tensioner constructionDYNEER CORP·Filed 1979·Granted Jun 2, 1981·61 cites·20 claims
- 0391US4055976AMethod of roller spinning cup-shaped metal blanks and roller construction thereforASPRO INC·Filed 1976·Granted Nov 1, 1977·54 cites·5 claims
- 0491US4050321AMulti V-grooved pulley structure and method of making sameASPRO INC·Filed 1976·Granted Sep 27, 1977·51 cites·18 claims
- 0586US4090284AMethod of making a sintered pulley hub constructionASPRO INC·Filed 1977·Granted May 23, 1978·27 cites·11 claims
- 0685US4056291AClutch housing and bearing assembly and method of making the sameASPRO INC·Filed 1976·Granted Nov 1, 1977·26 cites·7 claims
- 0784US4277240AHydraulic belt tensioner constructionDYNEER CORP·Filed 1979·Granted Jul 7, 1981·30 cites·18 claims
- 0883US4355991AArrangement for tensioning the drive belt for vehicle accessoriesDYNEER CORP·Filed 1979·Granted Oct 26, 1982·29 cites·7 claims
- 0979US4041746AMethod of making V-grooved sheet metal pulleysASPRO INC·Filed 1976·Granted Aug 16, 1977·22 cites·10 claims
- 1077US4551122AManufacture of poly-V sheet metal pulleys and productDYNEER CORP·Filed 1983·Granted Nov 5, 1985·28 cites·13 claims
- 1176US4283182AHydraulic belt tensioner constructionDYNEER CORP·Filed 1979·Granted Aug 11, 1981·22 cites·19 claims
- 1275US3991598AMethod of roller spinning cup-shaped metal blanksASPRO INC·Filed 1975·Granted Nov 16, 1976·25 cites·10 claims
- 1374US4299583AHydraulic belt tensioner constructionDYNEER CORP·Filed 1979·Granted Nov 10, 1981·23 cites·19 claims
- 1474US4109542ASpun V-grooved sheet metal pulley with thick hub wall integral with thin side wallASPRO INC·Filed 1976·Granted Aug 29, 1978·15 cites·6 claims
- 1572US3995474AMethod of making spun V-grooved sheet metal pulleysASPRO INC·Filed 1975·Granted Dec 7, 1976·15 cites·20 claims
- 1670US4276038AHydraulic belt tensioner constructionDYNEER CORP·Filed 1979·Granted Jun 30, 1981·18 cites·14 claims
- 1764US4016642AMethod of making clutch housing and bearing assemblyASPRO INC·Filed 1975·Granted Apr 12, 1977·13 cites·12 claims
- 1855US4289007AApparatus for hydraulically forming sheet metal pulleysDYNEER CORP·Filed 1979·Granted Sep 15, 1981·12 cites·17 claims
- 1951US4321819APress constructionDYNEER CORP·Filed 1980·Granted Mar 30, 1982·10 cites·19 claims
- 2047US4056014ASintered pulley hub construction and method of making sameASPRO INC·Filed 1976·Granted Nov 1, 1977·7 cites·13 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →