Inventor · disambiguated record
Patrick R. Beirne
Also filed as: BEIRNE PATRICK · BEIRNE PATRICK R · COWPLAND MICHAEL C J
19 granted patents·1 pending application·448 citations·filing 1978–2008
96Inventor score
Top patents by PatentIndex Score
20 records- 0190US4376875AKeyless and indicatorless local telephone switching systemMITEL CORP·Filed 1980·Granted Mar 15, 1983·76 cites·11 claims
- 0288US4540854ASubscriber line interface circuitMITEL CORP·Filed 1983·Granted Sep 10, 1985·65 cites·9 claims
- 0387US6938964B2WheelMENZA LTD·Filed 2002·Granted Sep 6, 2005·59 cites·45 claims
- 0487US6910742B2WheelMENZA LTD·Filed 2002·Granted Jun 28, 2005·34 cites·41 claims
- 0586US7591592B2JournalMENZA LTD·Filed 2005·Granted Sep 22, 2009·21 cites·22 claims
- 0677USD470452SWheelMENZA LTD·Filed 2001·Granted Feb 18, 2003·25 cites·1 claims
- 0773US4472608ASubscriber line interface circuitMITEL CORP·Filed 1981·Granted Sep 18, 1984·23 cites·6 claims
- 0867US4410766APower saving line circuitMITEL CORP·Filed 1981·Granted Oct 18, 1983·16 cites·9 claims
- 0964US5863489AMethod of blow-mouldingMENZA LTD·Filed 1996·Granted Jan 26, 1999·25 cites·9 claims
- 1064US4245214ASwitching matrixMITEL CORP·Filed 1979·Granted Jan 13, 1981·8 cites·10 claims
- 1161US4281219ATelephone line circuitMITEL CORP·Filed 1979·Granted Jul 28, 1981·9 cites·7 claims
- 1261US4178485ATransformerless telephone line circuitMITEL CORP·Filed 1978·Granted Dec 11, 1979·15 cites·13 claims
- 1359US4694482ADigital tone detectorMITEL CORP·Filed 1986·Granted Sep 15, 1987·17 cites·2 claims
- 1457US4747131ADial tone detectorMITEL DATACOM INC·Filed 1986·Granted May 24, 1988·19 cites·13 claims
- 1557US4273965ATone decoding circuitMITEL CORP·Filed 1979·Granted Jun 16, 1981·6 cites·11 claims
- 1655US4669114ADigital tone detectorMITEL CORP·Filed 1985·Granted May 26, 1987·15 cites·16 claims
- 1754US4182936ATransformerless trunk circuitMITEL CORP·Filed 1978·Granted Jan 8, 1980·8 cites·18 claims
- 1852US2009058176A1Blow moulded wheelBEIRNE PATRICK·Filed 2008·Application pending·0 cites
- 1935US5935493AMethod for blow-mouldingMENZA LTD·Filed 1996·Granted Aug 10, 1999·6 cites·11 claims
- 2028US4321431ATrunk circuit with single coupling transformerMITEL CORP·Filed 1979·Granted Mar 23, 1982·1 cites·24 claims
Join the waitlist — get patent alerts
Get an alert when Patrick R. Beirne files or is granted a new patent.
We store only your email — no account needed. See our privacy policy.
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →