Inventor
Donald Marion Keen
Inventor
Indianapolis, IN, US
Overview
Patents· 10 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
H04Mprimary
H04MTelephonic communication31%
G06FElectric digital data processing25%
G10LSpeech analysis techniques or speech synthesis19%
A61BDiagnosis6%
G09GArrangements or circuits for control of indicating devices using static means to present variable information6%
G16HHealthcare informatics, i.e. information and communication technology [ict] specially adapted for the handling or processing of medical or healthcare data6%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests6%
PatentTitleYear
10,978,195Physical activity and workout monitor20215,960,393'User selectable multiple threshold criteria for voice recognition'19995,930,751'Method of implicit confirmation for automatic speech recognition'19995,842,161'Telecommunications instrument employing variable criteria speech recognition'19985,687,227'Telephone with user recorded ringing signal'19975,657,258'Mobile pen computer having an integrated palm rest'19975,638,438'System and method for automatically creating new pages in a touch screen based telephony product having a hierarchical repertory'19975,625,375'Method and apparatus for a multiple font display'19975,526,422'System and method for cleaning the display screen of a touch screen device'19965,388,153'Apparatus and method for detecting telephone line status'1995Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1995–1996Patents assigned to AT & T CORP (2)· patent assignee history
1995–1999Based in Indianapolis, IN, US· patent location history
1997–1999Patents assigned to LUCENT TECHNOLOGIES INC (7)· patent assignee history
1999Based in Ocean, NJ, US· patent location history
2021Patents assigned to APPLE INC (1)· patent assignee history
2021Based in San Jose, CA, US· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| LUCENT TECHNOLOGIES INC | 7 | 1997–1999 |
| AT & T CORP | 2 | 1995–1996 |
| APPLE INC | 1 | 2021 |
Locations
| Location | Patents | Span |
|---|---|---|
| Indianapolis, IN, US | 8 | 1995–1999 |
| San Jose, California, US | 1 | 2021 |
| Ocean, New Jersey, US | 1 | 1999 |