Inventor · disambiguated record
Richard C. St. John
Also filed as: ST JOHN RICHARD C · ST JOHN RICHARD CHARLES
18 granted patents·1 pending application·531 citations·filing 1975–2022
96Inventor score
Top patents by PatentIndex Score
19 records- 0195US4767383AAdjustable tensioner for belt and chain drivesST JOHN RICHARD C·Filed 1986·Granted Aug 30, 1988·72 cites·20 claims
- 0295US4557709ABelt tensioner systemCORP I·Filed 1982·Granted Dec 10, 1985·85 cites·17 claims
- 0392US4957471AAdjustable locked center and dynamic tensionerST JOHN RICHARD C·Filed 1989·Granted Sep 18, 1990·49 cites·28 claims
- 0489US5354242AAutomatic belt tensioner with an enclosed flat wire power spring and improved zeroing and damping meansST JOHN RICHARD C·Filed 1992·Granted Oct 11, 1994·47 cites·15 claims
- 0589US4402678AClutch housing and pulley assemblyDYNEER CORP·Filed 1980·Granted Sep 6, 1983·34 cites·1 claims
- 0689US4254541AMethod of making clutch housing and pulley assemblyASPRO INC·Filed 1978·Granted Mar 10, 1981·32 cites·19 claims
- 0787US5064405AAdjustable locked center and dynamic tensionerST JOHN RICHARD C·Filed 1990·Granted Nov 12, 1991·42 cites·14 claims
- 0886US4294342ACentrifugal clutch constructionDYNEER CORP·Filed 1980·Granted Oct 13, 1981·29 cites·14 claims
- 0985US4056291AClutch housing and bearing assembly and method of making the sameASPRO INC·Filed 1976·Granted Nov 1, 1977·26 cites·7 claims
- 1082US4254854ACentrifugal clutch shoe mounting arrangementDYNEER CORP·Filed 1979·Granted Mar 10, 1981·23 cites·10 claims
- 1179US4226320ACentrifugal clutch constructionASPRO INC·Filed 1978·Granted Oct 7, 1980·22 cites·5 claims
- 1264US4016642AMethod of making clutch housing and bearing assemblyASPRO INC·Filed 1975·Granted Apr 12, 1977·13 cites·12 claims
- 1362US4172603ASensing apparatus with mechanical actuation systemGEN TIME CORP·Filed 1978·Granted Oct 30, 1979·18 cites·8 claims
- 1461US4016963ACentrifugal clutch constructionASPRO INC·Filed 1976·Granted Apr 12, 1977·13 cites·13 claims
- 1548US4062433AQuick release centrifugal clutch constructionASPRO INC·Filed 1976·Granted Dec 13, 1977·8 cites·15 claims
- 1644US2024198788A1Expanded fuel fill pipe and method of making sameFLUID ROUTING SOLUTIONS LLC·Filed 2022·Application pending·0 cites
- 1743US4282962APivotal mounting assemblyASPRO INC·Filed 1978·Granted Aug 11, 1981·6 cites·9 claims
- 1841US4015694ABrake constructionASPRO INC·Filed 1975·Granted Apr 5, 1977·7 cites·17 claims
- 1939US4020936ACentrifugal clutch with centrifugal detentASPRO INC·Filed 1975·Granted May 3, 1977·5 cites·21 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →