Inventor · disambiguated record
Henry C. Dittmer
Also filed as: DITTMER HENRY C
11 granted patents·385 citations·filing 1986–1994
92Inventor score
Top patents by PatentIndex Score
11 records- 0193US4754479AStation number portabilityAMERICAN TELEPHONE & TELEGRAPH·Filed 1986·Granted Jun 28, 1988·183 cites·15 claims
- 0268US5343517AUse-code based call-treatment selectionAT & T BELL LAB·Filed 1991·Granted Aug 30, 1994·39 cites·24 claims
- 0360US5404395AExternal-to-internal numbering plan aliasingAT & T CORP·Filed 1992·Granted Apr 4, 1995·29 cites·57 claims
- 0456US5333188ADialed number recognition arrangementAT & T BELL LAB·Filed 1991·Granted Jul 26, 1994·24 cites·30 claims
- 0556US5289535AContext-dependent call-feature selectionAT & T BELL LAB·Filed 1991·Granted Feb 22, 1994·24 cites·8 claims
- 0654US5299261AArrangement for effecting segmentation of a dialed numberAT & T BELL LAB·Filed 1992·Granted Mar 29, 1994·22 cites·56 claims
- 0749US5321743AShared-tenant services arrangement providing numbering-plan independence and cross-plan access to tenant groupsAT & T BELL LAB·Filed 1992·Granted Jun 14, 1994·17 cites·20 claims
- 0849US5311584ATelecommunications call-processing arrangementAT & T BELL LAB·Filed 1991·Granted May 10, 1994·17 cites·40 claims
- 0944US5412714AMnemonic and synonymic addressing in a telecommunications systemAT & T CORP·Filed 1992·Granted May 2, 1995·13 cites·36 claims
- 1043US5485512AMnemonic and synonymic addressing in a telecommunications systemAT & T CORP·Filed 1994·Granted Jan 16, 1996·13 cites·27 claims
- 1133US5329582ADynamic tone-administrationAT & T BELL LAB·Filed 1991·Granted Jul 12, 1994·4 cites·18 claims
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →