Assignee
BURROUGHS CORP
1,217 granted patents·33,387 citations·filing 1969–1986
Top patents by PatentIndex Score
1,217 records- 0199US4442507AElectrically programmable read-only memory stacked above a semiconductor substrateBURROUGHS CORP·Filed 1981·Granted Apr 10, 1984·342 cites·12 claims
- 0298US4177475AHigh temperature amorphous memory device for an electrically alterable read-only memoryBURROUGHS CORP·Filed 1977·Granted Dec 4, 1979·124 cites·10 claims
- 0397US4546273ADynamic re-programmable PLABURROUGHS CORP·Filed 1983·Granted Oct 8, 1985·90 cites·11 claims
- 0497US4310180AProtected document and method of making sameBURROUGHS CORP·Filed 1980·Granted Jan 12, 1982·150 cites·1 claims
- 0597US4151410ADocument processing, jam detecting apparatus and processBURROUGHS CORP·Filed 1977·Granted Apr 24, 1979·116 cites·25 claims
- 0697US4131899ADroplet generator for an ink jet printerBURROUGHS CORP·Filed 1977·Granted Dec 26, 1978·92 cites·13 claims
- 0796US4620813APosition retaining mechanismBURROUGHS CORP·Filed 1984·Granted Nov 4, 1986·115 cites·5 claims
- 0896US4621353AOptical memory system providing improved focusing control and improved beam combining and separating apparatusBURROUGHS CORP·Filed 1982·Granted Nov 4, 1986·82 cites·10 claims
- 0996US4502082ASpiral recording and associated systemBURROUGHS CORP·Filed 1978·Granted Feb 26, 1985·67 cites·24 claims
- 1096US4479831AMethod of making low resistance polysilicon gate transistors and low resistance interconnections therefor via gas deposited in-situ doped amorphous layer and heat-treatmentBURROUGHS CORP·Filed 1983·Granted Oct 30, 1984·565 cites·8 claims
- 1196US4443870AOptical memory system providing track followingBURROUGHS CORP·Filed 1981·Granted Apr 17, 1984·62 cites·6 claims
- 1296US4390220AElectrical connector assembly for an integrated circuit packageBURROUGHS CORP·Filed 1981·Granted Jun 28, 1983·128 cites·9 claims
- 1396US4253146AModule for coupling computer-processorsBURROUGHS CORP·Filed 1978·Granted Feb 24, 1981·269 cites·14 claims
- 1496US4253144AMulti-processor communication networkBURROUGHS CORP·Filed 1978·Granted Feb 24, 1981·292 cites·17 claims
- 1596US4245306ASelection of addressed processor in a multi-processor networkBURROUGHS CORP·Filed 1978·Granted Jan 13, 1981·334 cites·32 claims
- 1696US4227719AProtection system for documentsBURROUGHS CORP·Filed 1978·Granted Oct 14, 1980·61 cites·3 claims
- 1796US4165252AMethod for chemically treating a single side of a workpieceBURROUGHS CORP·Filed 1978·Granted Aug 21, 1979·103 cites·6 claims
- 1896US4043894AElectrochemical anodization fixture for semiconductor wafersBURROUGHS CORP·Filed 1976·Granted Aug 23, 1977·78 cites·7 claims
- 1996US4007493ATrack positioning system for magnetic transducer headBURROUGHS CORP·Filed 1975·Granted Feb 8, 1977·86 cites·13 claims
- 2095US4677566APower control network for multiple digital modulesBURROUGHS CORP·Filed 1984·Granted Jun 30, 1987·163 cites·5 claims
- 2195US4637018AAutomatic signal delay adjustment methodBURROUGHS CORP·Filed 1984·Granted Jan 13, 1987·205 cites·15 claims
- 2295US4617461AFluorescent optical switch and keyboard apparatusBURROUGHS CORP·Filed 1984·Granted Oct 14, 1986·122 cites·7 claims
- 2395US4494226AThree beam optical memory systemBURROUGHS CORP·Filed 1981·Granted Jan 15, 1985·56 cites·16 claims
- 2495US4467400AWafer scale integrated circuitBURROUGHS CORP·Filed 1982·Granted Aug 21, 1984·173 cites·15 claims
- 2595US4424579AMask programmable read-only memory stacked above a semiconductor substrateBURROUGHS CORP·Filed 1981·Granted Jan 3, 1984·89 cites·18 claims
- 2695US4331328AController for a servo driven document feederBURROUGHS CORP·Filed 1980·Granted May 25, 1982·100 cites·8 claims
- 2795US4307446ADigital communication networks employing speed independent switchesBURROUGHS CORP·Filed 1979·Granted Dec 22, 1981·158 cites·11 claims
- 2895US4244672ASystem for sequencing articles including mailBURROUGHS CORP·Filed 1979·Granted Jan 13, 1981·155 cites·10 claims
- 2995US4240143AHierarchical multi-processor network for memory sharingBURROUGHS CORP·Filed 1978·Granted Dec 16, 1980·248 cites·11 claims
- 3095US4203123AThin film memory device employing amorphous semiconductor materialsBURROUGHS CORP·Filed 1977·Granted May 13, 1980·299 cites·3 claims
- 3195US4160120ALink encryption deviceBURROUGHS CORP·Filed 1977·Granted Jul 3, 1979·172 cites·26 claims
- 3295US4159468ACommunications line authentication deviceBURROUGHS CORP·Filed 1977·Granted Jun 26, 1979·238 cites·27 claims
- 3395US4016357AFloor structure for the environment of a modular computer systemBURROUGHS CORP·Filed 1975·Granted Apr 5, 1977·111 cites·3 claims
- 3495US3978393AHigh efficiency switching regulatorBURROUGHS CORP·Filed 1975·Granted Aug 31, 1976·205 cites·22 claims
- 3594US4674004AParallel-flow air system for cooling electronic equipmentBURROUGHS CORP·Filed 1986·Granted Jun 16, 1987·102 cites·21 claims
- 3694US4453212AExtended address generating apparatus and methodBURROUGHS CORP·Filed 1981·Granted Jun 5, 1984·257 cites·13 claims
- 3794US4451027AConstant spacing document feederBURROUGHS CORP·Filed 1982·Granted May 29, 1984·121 cites·7 claims
- 3894US4374402APiezoelectric transducer mounting structure and associated techniquesBURROUGHS CORP·Filed 1980·Granted Feb 15, 1983·84 cites·9 claims
- 3994US4332027ALocal area contention network data communication systemBURROUGHS CORP·Filed 1980·Granted May 25, 1982·166 cites·12 claims
- 4094US4251000AFront and back stacker for high speed sorter/reader apparatusBURROUGHS CORP·Filed 1979·Granted Feb 17, 1981·52 cites·12 claims
- 4194US4227930ABall point pen, ink, and its eradicator systemBURROUGHS CORP·Filed 1978·Granted Oct 14, 1980·59 cites·3 claims
- 4294US4213717ABall point pen, ink and its eradicator systemBURROUGHS CORP·Filed 1978·Granted Jul 22, 1980·57 cites·7 claims
- 4394US4210346AProtected document bearing watermark and method of makingBURROUGHS CORP·Filed 1977·Granted Jul 1, 1980·140 cites·10 claims
- 4494US4188645APiezoelectric servo for disk driveBURROUGHS CORP·Filed 1978·Granted Feb 12, 1980·44 cites·12 claims
- 4594US4172213AByte stream selective encryption/decryption deviceBURROUGHS CORP·Filed 1977·Granted Oct 23, 1979·161 cites·49 claims
- 4694US4149198ATransducer positioning systemBURROUGHS CORP·Filed 1975·Granted Apr 10, 1979·56 cites·20 claims
- 4794US4136780AMail singulation and culling systemBURROUGHS CORP·Filed 1977·Granted Jan 30, 1979·92 cites·15 claims
- 4894US4062049AIntegrated Disk File Module and memory storage systemBURROUGHS CORP·Filed 1976·Granted Dec 6, 1977·74 cites·1 claims
- 4994US4052698AMulti-parallel-channel error checkingBURROUGHS CORP·Filed 1975·Granted Oct 4, 1977·46 cites·12 claims
- 5093US4663539ALocal power switching control subsystemBURROUGHS CORP·Filed 1984·Granted May 5, 1987·79 cites·14 claims
Showing the top 50 of 1,217 patent records by PatentIndex Score.
Join the waitlist — get patent alerts
Get an alert when BURROUGHS CORP 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 →