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For the Inventor, By the Inventor

Numansdorp, Netherlands

Jacobus E Hazenbroek

This inventor holds 52 USPTO granted patents, plus 1 CIPO patent, primarily in Poultry Processing (CPC class 4521). Top assignees: Systemateholland, B.v., Systemate B.v., Baker International Inc.. Active years: 1976-2001.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Jacobus E Hazenbroek. Retrieved from https://idiyas.com/inventor/jacobus-e-hazenbroek

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

USPTO Granted Patents = 52

% Patents Active = 100.0


Average Co-Inventor Count = 1.3

ph-index = 32

Forward Citations = 1,680(Granted Patents)

Forward Citations (Not Self Cited) = 1,613(Dec 10, 2025)


Inventors with similar research interests:


Location History:

  • Numansdrop, Holland, NL (1994)
  • Klaaswaa, NL (1998)
  • Numansdorp, NL (1976 - 1999)
  • L Klaaswaal, NL (1999)
  • Klaaswaal, NL (1998 - 2001)
  • 3286 LH Klaaswaal, NL (2001)

Company Filing History:

goldMedal12 out of 19 
 
Systemateholland, B.v.
 patents
silverMedal2 out of 2 
 
Systemate B.v.
 patents
bronzeMedal1 out of 167 
 
Baker International Inc.
 patents
4. 1 out of 1 
 
Ststemate Holland, B.v.
 patent
5. 1 out of 1 
 
Tieleman B.v.
 patent
6. 32 out of 834,453 
Other
 patents
where one patent can have more than one assignee

Years Active: 1976-2001

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Areas of Expertise:
Poultry Deboner
Filleting Apparatus
Carcass Processing
Eviscerator
Wing Remover
Thigh Separator
Crop Removal
Position Lock Shackle
Conveyor System
Neck Breaker
Defeathering Apparatus
Adjustable Separator
52 patents (USPTO):Explore Patents
1. 6179702 - Rotary shackle with position lock (2001-01-30),
2. 6176772 - Crop remover assembly (2001-01-23),
3. 6027403 - Crop remover assembly (2000-02-22),
4. 6024636 - Expandable poultry deboner having a pre-cut installation (2000-02-15),
5. 5976004 - Partially deboned poultry product and process (1999-11-02),
6. 5947811 - Apparatus for cutting up carcasses of poultry (1999-09-07),
7. 5875738 - Tiltable poultry shackle (1999-03-02),
8. 5865672 - Deboning device and deboning apparatus for partially deboning meat (1999-02-02),
9. 5833527 - Poultry breast filleting apparatus (1998-11-10),
10. 5782685 - Expandable poultry thigh deboner (1998-07-21),
11. 5766063 - Eviscerator (1998-06-16),
12. 5429549 - Sequential wing remover (1995-07-04),
13. 5344360 - Method and apparatus for transferring a bird from one conveyor system to (1994-09-06),
14. 5336127 - Method and apparatus for centrally aligning and cutting the keel bone of (1994-08-09),
15. 5188560 - Wing tip cutter (1993-02-23),

Title: Innovations of Jacobus E Hazenbroek

Introduction

Jacobus E Hazenbroek is a prolific inventor based in Numansdorp, Netherlands, holding an impressive total of 52 patents to his name. His contributions to modern technology reflect a commitment to advancing practical solutions in various fields, particularly in the processing of poultry.

Latest Patents

Among his latest innovations is the "Rotary Shackle with Position Lock," which features a rotary bird hanger. This design incorporates a turning gear with a lock collar containing notches that secure the hanger's rotational movement. A cam lock mechanism ensures that the hanger can rotate while maintaining safety through automatic locking and unlocking processes as it engages additional cams along the processing path.

Another notable patent is the "Crop Remover Assembly," a device specifically designed for the effective removal of the crop from slaughtered poultry. This assembly comprises a crop probe with engaging means, enabling it to hold a carcass securely while performing its operation. The device is engineered to synchronize the movements of the crop probe and neck breaker, ensuring efficient processing during poultry slaughter.

Career Highlights

Throughout his career, Jacobus has worked with several notable companies, including Systemateholland B.V. This experience greatly contributed to his expertise in developing innovative solutions in the poultry processing industry.

Collaborations

Jacobus has collaborated with talented individuals such as Bastiaan Verrijp and Dirk C Stooker. Working alongside these professionals has enriched his creative process and enhanced the overall quality of his inventions.

Conclusion

In conclusion, Jacobus E Hazenbroek has made significant contributions to industrial innovations through his 52 patents. His latest inventions like the Rotary Shackle with Position Lock and Crop Remover Assembly underscore his dedication to improving efficiency in poultry processing. As a prominent inventor, Jacobus continues to shape the landscape of technology with his visionary ideas.

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]
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