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CPC
H04M17/302

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Parent Industries

HELECTRICITY H04Electric communication H04MTELEPHONIC COMMUNICATION H04M17/00Prepayment of wireline communication systems, wireless communication systems or telephone systems

Current Industry

H04M17/302from communication terminal display

Industries

Patents Grantslast 30 patents

Information Patent Grant
Secured pre-payment for portable communication unit
- Patent number 10,594,873
- Issue date Mar 17, 2020
- Precis Group LLC
- Peter D. Wendt
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Secured pre-payment for portable communication unit
- Patent number 10,218,859
- Issue date Feb 26, 2019
- Precis Group LLC
- Peter D. Wendt
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Secured pre-payment for portable communication unit
- Patent number 10,057,432
- Issue date Aug 21, 2018
- Peter D. Wendt
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Secured pre-payment for portable communication unit
- Patent number 9,813,564
- Issue date Nov 7, 2017
- Peter D. Wendt
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Secured pre-payment for portable communication unit
- Patent number 9,686,421
- Issue date Jun 20, 2017
- Peter D. Wendt
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Patents Applicationslast 30 patents

Information Patent Application
Wireless communication device with replenishable credit balance
- Publication number 20010023180
- Publication date Sep 20, 2001
- Dietmar Sauer
- G06 - COMPUTING CALCULATING COUNTING