Assignee
EFCIS
FR·28 granted patents·591 citations·filing 1981–1994
Top patents by PatentIndex Score
28 records- 0187US4541073ANon-volatile flip-flop with a static resettingEFCIS·Filed 1982·Granted Sep 10, 1985·48 cites·4 claims
- 0286US4593454AProcess for manufacturing an integrated circuit with tantalum silicide connections utilizing self-aligned oxidationEFCIS·Filed 1984·Granted Jun 10, 1986·61 cites·9 claims
- 0382US4805759AInstallation and method for handling delicate objects in an atmosphere having a controlled dust contentEFCIS·Filed 1986·Granted Feb 21, 1989·75 cites·12 claims
- 0478US4442398AIntegrated circuit generator in CMOS technologyEFCIS·Filed 1981·Granted Apr 10, 1984·38 cites·6 claims
- 0575US4499560ANon-volatile flip-flop with a dynamic resettingEFCIS·Filed 1982·Granted Feb 12, 1985·22 cites·7 claims
- 0673US4780429AMethod of fabrication of MOS transistors having electrodes of metallic silicideEFCIS·Filed 1986·Granted Oct 25, 1988·49 cites·10 claims
- 0773US4592802AMethod of fabrication of aluminum contacts through a thick insulating layer in an integrated circuitEFCIS·Filed 1985·Granted Jun 3, 1986·46 cites·3 claims
- 0868US4488246AIntegrated logic network with simplified programmingEFCIS·Filed 1981·Granted Dec 11, 1984·18 cites·4 claims
- 0967US4561932AMethod of producing integrated silicon structures on isolated islets of the substrateEFCIS·Filed 1984·Granted Dec 31, 1985·31 cites·3 claims
- 1066US4512029ANon-volatile decade counter using Johnson code or equivalentEFCIS·Filed 1982·Granted Apr 16, 1985·15 cites·8 claims
- 1165US4451328AManufacturing TaSi-polysilicon conductors having high-resistance elements by a liftoff techniqueEFCIS·Filed 1982·Granted May 29, 1984·31 cites·3 claims
- 1260US4599575ABroad-band differential amplifier with double reverse feed-back of common modeEFCIS·Filed 1985·Granted Jul 8, 1986·13 cites·3 claims
- 1351US4721865AAnalog signal level detectorEFCIS·Filed 1985·Granted Jan 26, 1988·15 cites·6 claims
- 1451US4595999ANon-volatile random access memory cell with CMOS transistors having a common floating gridEFCIS·Filed 1984·Granted Jun 17, 1986·15 cites·4 claims
- 1549US4891328AMethod of manufacturing field effect transistors and lateral bipolar transistors on the same substrateEFCIS·Filed 1986·Granted Jan 2, 1990·17 cites·7 claims
- 1649US4628472ABinary multiplier using ternary codeEFCIS·Filed 1983·Granted Dec 9, 1986·16 cites·8 claims
- 1747US4419631AIntegrated circuit amplifier functioning in class AB and incorporating CMOS (metal oxide semiconductor) technologyEFCIS·Filed 1981·Granted Dec 6, 1983·9 cites·5 claims
- 1845US5457338AProcess for manufacturing isolated semi conductor components in a semi conductor waferEFCIS·Filed 1994·Granted Oct 10, 1995·11 cites·10 claims
- 1943US4651036ALogic data transfer bus preloading circuitEFCIS·Filed 1985·Granted Mar 17, 1987·10 cites·3 claims
- 2038US4459542ASpectrum analyzer having common two-channel filters, especially for voice recognitionEFCIS·Filed 1982·Granted Jul 10, 1984·14 cites·7 claims
- 2138US4356055AProcess and device for monitoring the plasma etching of thin layer utilizing pressure changes in the plasmaEFCIS·Filed 1981·Granted Oct 26, 1982·10 cites·3 claims
- 2237US4559498ASymmetrical integrator and application of said integrator to an electric filterEFCIS·Filed 1982·Granted Dec 17, 1985·6 cites·5 claims
- 2337US4524425AHigh-pass filter of the first order and application thereof to telephonyEFCIS·Filed 1983·Granted Jun 18, 1985·6 cites·6 claims
- 2432US4731318AIntegrated circuit comprising MOS transistors having electrodes of metallic silicide and a method of fabrication of said circuitEFCIS·Filed 1986·Granted Mar 15, 1988·5 cites·3 claims
- 2532US4679309AProcess for manufacturing isolated semi conductor components in a semi conductor waferEFCIS·Filed 1984·Granted Jul 14, 1987·2 cites·3 claims
- 2631US4575708ADecoder of a data from a subgroup of P data belonging to a group of N dataEFCIS·Filed 1984·Granted Mar 11, 1986·1 cites·3 claims
- 2729US4513265A3-Phase switched capacitor circuit having an inductive characteristicEFCIS·Filed 1982·Granted Apr 23, 1985·3 cites·3 claims
- 2824US4706209AArithmetic and logic unit with overflow indicatorEFCIS·Filed 1985·Granted Nov 10, 1987·4 cites·4 claims
Join the waitlist — get patent alerts
Get an alert when EFCIS files or is granted a new patent.
We store only your email — no account needed. See our privacy policy.
Counts cover granted patents and pending applications in the PatentIndex corpus. How scoring works →