Hugh L Brunk

This inventor holds 73 USPTO granted patents and 13 published patent applications, plus 1 CIPO patent and 4 EPO patents, primarily in Recycling Technologies (CPC class H04N). Top assignees: Digimarc Corporation, Pitney Bowes Inc., Digimarc Coporation. Active years: 2002-2026.

USPTO Granted Patents = 73 (Patent Applications = 13)

% Patents Active = 69.9

CIPO Patents = 1 (Patent Applications = 5)

EPO Patents = 4 (Patent Applications = 6)

Average Co-Inventor Count = 2.6

ph-index = 25

Forward Citations = 2,268(Granted Patents)

Forward Citations (Not Self Cited) = 2,112(Dec 10, 2025)

Inventors with similar research interests:

Location History:

Portand, OR (US) (2013)
Portland, OR (US) (2002 - 2024)

Company Filing History:

where one patent can have more than one assignee

Years Active: 2002-2026

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Areas of Expertise:

Recycling Methods

Material Sorting

Laser Marking

Optical Codes

Digital Watermarking

Quality Control

Plastic Containers

Machine Learning

Spectrally-Structured-Light Imaging

Mobile Device Location

Message Key Generation

Content Signatures

73 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 12675656 - Generating and reading optical codes with variable density to adapt for visual quality and reliability (2026-07-07),

2. 12496618 - Methods and arrangements to aid recycling (2025-12-16),

3. 12412228 - Learning systems and methods (2025-09-09),

4. 12382182 - Lighting arrangements for material sorting (2025-08-05),

5. 12348840 - Recycling methods and systems, and related plastic containers (2025-07-01),

6. 12299764 - Pre-press warping arrangements for watermarks and associated graphic artworks, with related quality control techniques (2025-05-13),

7. 12296525 - Signaling arrangements employing molded thermoplastics (2025-05-13),

8. 12217108 - Laser marking of machine-readable codes (2025-02-04),

9. 12079684 - Generating reading optical codes with variable density to adapt for visual quality and reliability (2024-09-03),

10. 11962876 - Recycling methods and systems, and related plastic containers (2024-04-16),

11. 11962875 - Recycling methods and systems, and related plastic containers (2024-04-16),

12. 11878327 - Methods and arrangements for sorting items, useful in recycling (2024-01-23),

13. 11710020 - Laser marking of machine-readable codes (2023-07-25),

14. 11080006 - Methods and system for cue detection from audio input, low-power data processing and related arrangements (2021-08-03),

15. 11062108 - Generating and reading optical codes with variable density to adapt for visual quality and reliability (2021-07-13),

Title: The Inventor Hugh L Brunk: Pioneering Innovations in Portland

Introduction: Hugh L Brunk is a distinguished inventor based in Portland, Oregon, known for his groundbreaking contributions to various fields through his innovative creations.

Latest Patents: Hugh L Brunk holds several patents in diverse areas, showcasing his versatility and creativity in inventing new solutions to complex problems.

Career Highlights: Throughout his illustrious career, Hugh L Brunk has consistently pushed the boundaries of innovation, earning recognition for his forward-thinking approach and impactful inventions.

Collaborations: Hugh L Brunk has collaborated with leading experts in the industry, fostering a culture of innovation and knowledge-sharing to drive progress and development in his field.

Conclusion: In conclusion, Hugh L Brunk stands as a visionary inventor whose passion for innovation continues to inspire and shape the future of technology and beyond.