Inventor · disambiguated record
Donald Keefer
Also filed as: KEEFER DONALD · KEEFER DONALD L
3 granted patents·45 citations·filing 1992–2017
62Inventor score
Top patents by PatentIndex Score
3 records- 0162US5259621AChipping and putting trainer deviceKEEFER DONALD L·Filed 1992·Granted Nov 9, 1993·45 cites·14 claims
- 0257US11361325B2Dynamic management of a customer life-cycle valueIBM·Filed 2017·Granted Jun 14, 2022·0 cites·6 claims
- 0355US11295320B2Dynamic management of a customer life-cycle valueIBM·Filed 2017·Granted Apr 5, 2022·0 cites·11 claims
Join the waitlist — get patent alerts
Get an alert when Donald Keefer 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 →