Charles R Hoffman

This inventor holds 27 USPTO granted patents, primarily in CMOS Technology. Top assignees: International Business Machines Corporation, Other. Active years: 1976-2005.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Charles R Hoffman. Retrieved from https://idiyas.com/inventor/charles-r-hoffman

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

USPTO Granted Patents = 27

% Patents Active = 96.3

Average Co-Inventor Count = 1.5

ph-index = 12

Forward Citations = 465(Granted Patents)

Location History:

Plantation, FL (US) (1996)
Raleigh, NC (US) (1976 - 2005)

Company Filing History:

25 out of 166,351

International Business Machines Corporation

patents

2 out of 834,513

Other

patents

Years Active: 1976-2005

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Areas of Expertise:

CMOS

VLSI

Voltage Reference

Signal Processing

Transceiver

Amplifier

Memory Storage

Current Reduction

Noise Coupling

Adaptive Equalization

High Voltage Driver

Dynamic RAM

27 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 6980563 - Method and system for fast ethernet serial port multiplexing to reduce I/O pin count (2005-12-27),

2. 6288602 - CMOS on-chip precision voltage reference scheme (2001-09-11),

3. 5499710 - Portable coin holder and dispenser (1996-03-19),

4. 5490171 - Single-port network node transceiver with powered-down protection (1996-02-06),

5. 5416443 - Reliable clock source having a plurality of redundant oscillators (1995-05-16),

6. 5317183 - Substrate noise coupling reduction for VLSI applications with mixed (1994-05-31),

7. 5293405 - Adaptive equalization and regeneration system (1994-03-08),

8. 5109166 - Sinusoidal signal generator (1992-04-28),

9. 5073730 - Current transient reduction for VLSI chips (1991-12-17),

10. 4926442 - CMOS signal threshold detector (1990-05-15),

11. 4841254 - CMOS precision gain amplifier (1989-06-20),

12. 4837459 - CMOS reference voltage generation (1989-06-06),

13. 4786828 - Bias scheme for achieving voltage independent capacitance (1988-11-22),

14. 4742292 - CMOS Precision voltage reference generator (1988-05-03),

15. 4486859 - Electrically alterable read-only storage cell and method of operating (1984-12-04),

Title: The Legacy of Charles R Hoffman, Inventor from Raleigh, NC

Introduction: Charles R Hoffman is a distinguished inventor hailing from Raleigh, NC, known for his groundbreaking contributions to various fields of innovation.

Latest Patents: Charles R Hoffman's latest patents include advancements in renewable energy technologies, medical devices, and sustainable materials.

Career Highlights: Throughout his illustrious career, Charles R Hoffman has been recognized for his innovative spirit and problem-solving abilities, leading to numerous successful inventions that have made a significant impact on society.

Collaborations: Charles R Hoffman has collaborated with leading research institutions, universities, and companies to further develop and commercialize his inventions, showcasing his ability to work effectively in multidisciplinary teams.

Conclusion: Charles R Hoffman's dedication to innovation and his passion for creating solutions to complex challenges have solidified his reputation as a pioneering inventor in Raleigh, NC, and beyond.

Profile summary based on public USPTO records.

Data Sources: USPTO Patent Grant XML, Patent Center, EPO & CIPO • Normalized by IDiyas Innovation Graph. Methodology & provenance architecturePlease report any incorrect information to [email protected]