Nachiappan Valliappan

This inventor holds 38 USPTO granted patents and 12 published patent applications and 20 EPO patents, primarily in Wireless Communication. Top assignees: Qualcomm Incorporated, Google Inc.. Active years: 2016-2025.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Nachiappan Valliappan. Retrieved from https://idiyas.com/inventor/nachiappan-valliappan

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

USPTO Granted Patents = 38 (Patent Applications = 12)

% Patents Active = 81.6

EPO Patents = 20 (Patent Applications = 29)

Average Co-Inventor Count = 3.5

ph-index = 15

Forward Citations = 460(Granted Patents)

Location History:

San Diego, CA (US) (2016 - 2021)
Sunnyvale, CA (US) (2019 - 2021)
Santa Clara, CA (US) (2019 - 2023)

Company Filing History:

34 out of 44,897

Qualcomm Incorporated

Years Active: 2016-2025

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Areas of Expertise:

Differentially Private Heatmaps

Radio Coverage Problems

Cell Switching

Shared Spectrum

Channel Selection

Co-Existence

Carrier Sense Adaptive Transmission

Interference Management

Bandwidth Management

User Equipment Performance

Synchronization Signaling

Cellular Communications

38 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 12468850 - Differentially private heatmaps (2025-11-11),

2. 11700536 - Detecting radio coverage problems (2023-07-11),

3. 11388610 - Detecting radio coverage problems (2022-07-12),

4. 10993151 - Cell switching for discontinuous transmission (DTX) in shared spectrum (2021-04-27),

5. 10979203 - Channel selection to reduce interference to a wireless local area network from a cellular network (2021-04-13),

6. 10952081 - Detecting radio coverage problems (2021-03-16),

7. 10750506 - Re-contention-based co-existence on a shared communication medium (2020-08-18),

8. 10743325 - Channel selection co-existence in shared spectrum (2020-08-11),

9. 10651987 - Operator identification for co-existence on a shared communication medium (2020-05-12),

10. 10602536 - Beacon-aware co-existence in shared spectrum (2020-03-24),

11. 10602527 - Channel selection scanning in shared spectrum (2020-03-24),

12. 10595327 - Inter-access terminal unblocking and enhanced contention for co-existence on a shared communication medium (2020-03-17),

13. 10542541 - Re-contention-based co-existence on a shared communication medium (2020-01-21),

14. 10405242 - Robust channel reservation on a shared communication medium (2019-09-03),

15. 10374777 - Control signaling in a shared communication medium (2019-08-06),

Title: Innovations and Contributions of Nachiappan Valliappan

Introduction

Nachiappan Valliappan is a renowned inventor based in San Diego, California, with an impressive portfolio of 37 patents. His work primarily focuses on enhancing telecommunications through innovative methods and technologies.

Latest Patents

One of his latest patents is a method for detecting radio coverage problems. This method involves receiving observations from at least one user equipment (UE), which includes signal measurements emitted from a base station along with their corresponding locations. The data processing hardware generates a coverage map for the base station, indicating the signal characteristics of the emitted signals. Furthermore, it determines an estimated characteristic of the base station by feeding this coverage map into a neural network designed to output the estimated characteristic accurately.

Career Highlights

Throughout his career, Nachiappan has made significant contributions while working at prominent companies such as Qualcomm Incorporated and Google Inc. His experience in these leading technology firms has enriched his expertise in the field of telecommunications.

Collaborations

Nachiappan has collaborated with several talented individuals, including Ahmed Kamel Sadek and Tamer Adel Kadous. These collaborations have fostered an environment of innovation and creativity, leading to the successful development of various patented technologies.

Conclusion

With a remarkable track record in patents and a career marked by significant contributions to telecommunications, Nachiappan Valliappan continues to influence and shape the future of technology. His innovative methods and collaborations demonstrate the importance of creativity and teamwork in advancing the field.

Profile summary based on public USPTO records.