Inventor · disambiguated record
Efrem M. Ostrowsky
Also filed as: OSTROWSKY EFREM · OSTROWSKY EFREM M
28 granted patents·1,776 citations·filing 1974–1996
98Inventor score
Top patents by PatentIndex Score
28 records- 0198US4487324ATamper-evident dispensing closureSEAQUIST CLOSURES·Filed 1984·Granted Dec 11, 1984·186 cites·20 claims
- 0297US4776501ASelf-closing, press-to-open, dispensing closureSEAQUIST CLOSURES·Filed 1987·Granted Oct 11, 1988·162 cites·1 claims
- 0397USD292889SDispensing closure capPITTWAY CORP·Filed 1985·Granted Nov 24, 1987·57 cites·1 claims
- 0495US4887747ATwo-piece, snap-action closureSEAQUIST CLOSURES A DIVISION O·Filed 1988·Granted Dec 19, 1989·135 cites·9 claims
- 0595US4478343ATamper-indicating closureETHYL MOLDED PROD·Filed 1982·Granted Oct 23, 1984·103 cites·21 claims
- 0695US4427126AVented closureETHYL PROD·Filed 1981·Granted Jan 24, 1984·103 cites·4 claims
- 0794US4470513ATamper-indicating closureETHYL MOLDED PROD·Filed 1982·Granted Sep 11, 1984·101 cites·17 claims
- 0894US4458821ATamper-indicating closureETHYL MOLDED PROD·Filed 1982·Granted Jul 10, 1984·78 cites·21 claims
- 0990US4986453AAtomizing pumpPITTWAY CORP·Filed 1989·Granted Jan 22, 1991·84 cites·56 claims
- 1090US4414705AOvercenter hingeETHYL PROD·Filed 1981·Granted Nov 15, 1983·63 cites·10 claims
- 1189US4462502AThreaded closure with linerETHYL MOLDED PROD·Filed 1982·Granted Jul 31, 1984·77 cites·51 claims
- 1288US4402418ATamperproof closureETHYL PROD·Filed 1981·Granted Sep 6, 1983·66 cites·13 claims
- 1388US4002275ASafety capVCA CORP·Filed 1975·Granted Jan 11, 1977·65 cites·16 claims
- 1485US3993208ASafety closure meansVCA CORP·Filed 1975·Granted Nov 23, 1976·55 cites·12 claims
- 1584US4206851ATamperproof closureETHYL PRODUCTS·Filed 1979·Granted Jun 10, 1980·50 cites·15 claims
- 1684USD255012SDispenser cap for a pressurized containerETHYL PROD·Filed 1977·Granted May 20, 1980·17 cites·1 claims
- 1784US3968880APlastic containerVCA CORP·Filed 1975·Granted Jul 13, 1976·51 cites·15 claims
- 1879US4133449APlastic containerETHYL PROD·Filed 1975·Granted Jan 9, 1979·42 cites·11 claims
- 1977US4458822ATamper-indicating closureETHYL MOLDED PROD·Filed 1982·Granted Jul 10, 1984·44 cites·17 claims
- 2075US4381840AThreaded closure with free-floating linerETHYL PROD·Filed 1981·Granted May 3, 1983·41 cites·19 claims
- 2170US4369889ATamperproof closureETHYL PROD·Filed 1981·Granted Jan 25, 1983·35 cites·7 claims
- 2269US4053090ACap and valve actuator for spray dispensersVCA CORP·Filed 1974·Granted Oct 11, 1977·30 cites·4 claims
- 2366US4382521AVented closureETHYL PROD·Filed 1981·Granted May 10, 1983·31 cites·4 claims
- 2463US5735438APress-to-open dispensing closureFiled 1996·Granted Apr 7, 1998·33 cites·24 claims
- 2563US4011970ASafety actuator capVCA CORP·Filed 1976·Granted Mar 15, 1977·23 cites·13 claims
- 2662US3954114ALipstick caseVCA CORP·Filed 1974·Granted May 4, 1976·18 cites·19 claims
- 2751US3934598ACosmetic holder and applicatorVCA CORP·Filed 1974·Granted Jan 27, 1976·11 cites·17 claims
- 2845US3954201AHousing for containerVCA CORP·Filed 1975·Granted May 4, 1976·15 cites·24 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →