Inventor · disambiguated record
Donald L. Hannula
Also filed as: HANNULA DONALD L · HANNULA DONALD LEE
7 granted patents·4 pending applications·806 citations·filing 1981–2023
89Inventor score
Files withAMERICAN HOSPITAL SUPPLY CORP2THORATEC CORP2AMERICAN HOSPITAL SUPPLY COMPA1DUKAL LLC1HEYER SCHULTE CORP1
Top patents by PatentIndex Score
11 records- 0195US4634427AImplantable demand medication delivery assemblyAMERICAN HOSPITAL SUPPLY COMPA·Filed 1984·Granted Jan 6, 1987·486 cites·21 claims
- 0293US4364395ALow profile shunt systemHEYER SCHULTE CORP·Filed 1981·Granted Dec 21, 1982·77 cites·17 claims
- 0390US9682180B2Attachment system, device and methodHOARAU CARINE·Filed 2010·Granted Jun 20, 2017·29 cites·20 claims
- 0477US4435174ACatheter guideAMERICAN HOSPITAL SUPPLY CORP·Filed 1982·Granted Mar 6, 1984·123 cites·13 claims
- 0564US4776791AShield for a pair of orthodontic pliers for use in removing dental bracketsJOHNSON & JOHNSON CONSUMER·Filed 1988·Granted Oct 11, 1988·31 cites·11 claims
- 0656US4464168ALow profile shunt systemAMERICAN HOSPITAL SUPPLY CORP·Filed 1982·Granted Aug 7, 1984·58 cites·14 claims
- 0754US2023364338A1Multiple tube intravenous fluid delivery systemDUKAL LLC·Filed 2023·Application pending·0 cites
- 0850US2011118829A1Attachment device and methodTHORATEC CORP·Filed 2009·Application pending·0 cites
- 0950US2011118833A1Attachment device and methodTHORATEC CORP·Filed 2009·Application pending·0 cites
- 1049US2022134066A1Subcutaneous drain with valveKORNEL EZRIEL·Filed 2021·Application pending·0 cites
- 1137USD307473SDental pliers shieldJOHNSON & JOHNSON CONSUMER PRODUCTS INC·Filed 1988·Granted Apr 24, 1990·2 cites·1 claims
Join the waitlist — get patent alerts
Get an alert when Donald L. Hannula 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 →