Dar-Ren Leu

This inventor holds 80 USPTO granted patents and 6 published patent applications, plus 2 CIPO patents and 1 EPO patent, primarily in Network Virtualization (CPC class H04L45-00). Top assignees: International Business Machines Corporation, Lenovo (Singapore) Pte. Ltd., 3 Com Corporation. Active years: 1998-2021.

USPTO Granted Patents = 80 (Patent Applications = 6)

% Patents Active = 65.0

CIPO Patents = 2

EPO Patents = 1

Average Co-Inventor Count = 4.4

ph-index = 8

Forward Citations = 358(Granted Patents)

Forward Citations (Not Self Cited) = 272(Dec 10, 2025)

Inventors with similar research interests:

Company Filing History:

66 out of 166,264

International Business Machines Corporation

patents

12 out of 4,429

Lenovo (Singapore) Pte. Ltd.

Years Active: 1998-2021

Loading Chart...

Areas of Expertise:

Network Virtualization

Packet Switching

Distributed Systems

Logical Switch Architecture

Layer 2 Switching

Remote Procedure Call

Scalable Control Plane

Virtual Machine Controller

Network Traffic Distribution

Fabric Management Protocol

Non-disruptive Updates

Caching Heuristics

80 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 11005785 - Segmentation and reassembly of network packets for switched fabric networks (2021-05-11),

2. 10659284 - SNMP request processing within distributed device architecture (2020-05-19),

3. 10581761 - Segmentation and reassembly of network packets for switched fabric networks (2020-03-03),

4. 10291553 - Logical switch architecture for network virtualization (2019-05-14),

5. 10277422 - Virtual port support in a logical switch architecture (2019-04-30),

6. 10148569 - Layer 2 packet switching without look-up table for Ethernet switches (2018-12-04),

7. 9804907 - Remote procedure call for a distributed system (2017-10-31),

8. 9774547 - Segmentation and reassembly of network packets for switched fabric networks (2017-09-26),

9. 9740527 - Load distribution of logical switch routers in a distributed system (2017-08-22),

10. 9736163 - Scalable virtual appliance cloud (SVAC) and methods usable in an SVAC (2017-08-15),

11. 9699277 - Providing services to virtual overlay network traffic (2017-07-04),

12. 9678912 - Pass-through converged network adaptor (CNA) using existing ethernet switching device (2017-06-13),

13. 9571338 - Scalable distributed control plane for network switching systems (2017-02-14),

14. 9537766 - Packet switching without look-up table for ethernet switches (2017-01-03),

15. 9507586 - Virtual machine based controller and upgrade mechanism (2016-11-29),

Title: Innovations of Dar-Ren Leu: A Leader in Network Technology Patents

Introduction

Dar-Ren Leu, based in San Jose, CA, is a prominent inventor known for his contributions to network technology. With an impressive portfolio of 80 patents, his work significantly impacts how networks operate and communicate.

Latest Patents

Some of Dar-Ren Leu's latest patents reflect his innovative approach to networking solutions. One notable patent is for the segmentation and reassembly of network packets for switched fabric networks. This invention describes a method for reassembling incoming member cells into a complete packet by generating a reassembly key from specific header information. It involves checking a reassembly table to correctly store and manage the member cells in a dedicated buffer area.

Another significant patent is focused on SNMP request processing within a distributed device architecture. This invention simplifies the communication between a master device and member devices, enhancing how SNMP requests are handled. The master device generates non-SNMP requests for member devices, streamlining the process of managing devices within a network.

Career Highlights

Throughout his career, Dar-Ren Leu has made substantial contributions to several major technology companies. He has worked with International Business Machines Corporation (IBM) and Lenovo Enterprise Solutions (Singapore) Pte. Ltd., further solidifying his expertise in the field of network technology.

Collaborations

Dar-Ren has collaborated with notable professionals in the industry, including Keshav G Kamble and Vijoy A Pandey. These partnerships have undoubtedly influenced his innovative capabilities and contributed to the advancement of network technology.

Conclusion

Dar-Ren Leu stands out as a significant figure in the field of networking innovations. His extensive patent portfolio demonstrates his commitment to enhancing network efficiency and performance. Through his career and collaborations, he continues to influence the future of technology.