Assignee
INVESTMENT RARITIES INC
US·12 granted patents·219 citations·filing 1979–1988
Top patents by PatentIndex Score
12 records- 0192US4438737AApparatus and method for controlling the valve operation of an internal combustion engineINVESTMENT RARITIES INC·Filed 1981·Granted Mar 27, 1984·53 cites·17 claims
- 0290US4459946AValve actuating apparatus utilizing a multi-profiled cam unit for controlling internal combustion enginesINVESTMENT RARITIES INC·Filed 1982·Granted Jul 17, 1984·45 cites·20 claims
- 0375US4961406AMethod and device for optimizing the air-fuel mixture burn rate of internal combustion engines during low speed, light and heavy load operating conditionsINVESTMENT RARITIES INC·Filed 1988·Granted Oct 9, 1990·21 cites·10 claims
- 0472US4723515AMechanism utilizing a single rocker arm for controlling an internal combustion engine valveINVESTMENT RARITIES INC·Filed 1986·Granted Feb 9, 1988·28 cites·30 claims
- 0572US4295623AVariable position article holderINVESTMENT RARITIES INC·Filed 1979·Granted Oct 20, 1981·16 cites·45 claims
- 0665US4484546AVariable valve operating mechanism for internal combustion enginesINVESTMENT RARITIES INC·Filed 1982·Granted Nov 27, 1984·18 cites·13 claims
- 0757US4724809AMethod and apparatus utilizing valve throttling and charge stratification in the operation of an internal combustion engineINVESTMENT RARITIES INC·Filed 1984·Granted Feb 16, 1988·14 cites·10 claims
- 0845US4438735AApparatus and timing mechanism for controlling the valve operation of an internal combustion engineINVESTMENT RARITIES INC·Filed 1981·Granted Mar 27, 1984·9 cites·4 claims
- 0940US4414931AVariable valve operating mechanism for internal combustion enginesINVESTMENT RARITIES INC·Filed 1981·Granted Nov 15, 1983·7 cites·25 claims
- 1039US4495902AMechanism for variably controlling an internal combustion engine valveINVESTMENT RARITIES INC·Filed 1983·Granted Jan 29, 1985·6 cites·25 claims
- 1130US4683848AApparatus utilizing a plural-profiled cam unit for actuating the valve of an internal combustion engineINVESTMENT RARITIES INC·Filed 1984·Granted Aug 4, 1987·2 cites·11 claims
- 1229US4484558AVariable fuel delivery system for internal combustion enginesINVESTMENT RARITIES INC·Filed 1983·Granted Nov 27, 1984·0 cites·18 claims
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Counts cover granted patents and pending applications in the PatentIndex corpus. How scoring works →