Company Filing History:

25 out of 30,028

Siemens Aktiengesellschaft

patents

1 out of 12,867

Advanced Micro Devices Corporation

patents

1 out of 3

(cnbm) Bengbu Design Research Institute for Glass Industry Co. Ltd

patents

where one patent can have more than one assignee

Years Active: 1981-2021

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26 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 11183605 - Method for producing a layer structure for thin-film solar cells using etching or laser ablation to produce rear-electrode-layer-free region (2021-11-23),

2. 6188893 - Subscriber connection net for the connection of subscriber stations to an exchange using a radio system (2001-02-13),

3. 6009085 - Arrangement for the synchronization of the radio transmission in a (1999-12-28),

4. 6005875 - Public communications service with multiple access use of trunk links (1999-12-21),

5. 5274694 - Radio communication network based on digital local exchanges (1993-12-28),

6. 5274692 - Method for testing the line connection before switching from a telephone (1993-12-28),

7. 5043977 - Method and a circuit arrangement for setting the subscriber line dummy (1991-08-27),

8. 4905227 - Circuit for subscriber line interface circuits in a digital (1990-02-27),

9. 4893309 - Digital interface between at least two subscriber line interface (1990-01-09),

10. 4881226 - Digital interface of an integrated subscriber line interface circuit (1989-11-14),

11. 4858226 - Method for the operation of an interface circuit between a central (1989-08-15),

12. 4852159 - Circuit arrangement for a module in the exchange of a digital TDM (1989-07-25),

13. 4809258 - Circuit arrangement for the indication of loop closure during the (1989-02-28),

14. 4720845 - Protective circuit for the overvoltage protection of a subscriber line (1988-01-19),

15. 4715058 - Protective circuit for the overvoltage protection of a subscriber line (1987-12-22),

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