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For the Inventor, By the Inventor

Ontario, CA, United States of America

Jack E Christensen

This inventor holds 57 USPTO granted patents, primarily in Hybrid Rose Breeding (CPC class Plt ). Top assignees: Armstrong Nurseries, Inc., Bear Creek Gardens, Inc., Armstrong Garden Centers, Inc.. Active years: 1978-2004.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Jack E Christensen. Retrieved from https://idiyas.com/inventor/jack-e-christensen

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

Calculating rank
USPTO Granted Patents = 57

% Patents Active = 100.0

Average Co-Inventor Count = 1.2

ph-index = 3

Forward Citations = 23(Granted Patents)

Forward Citations (Not Self Cited) = 22(Dec 10, 2025)


Inventors with similar research interests:


Location History:

  • San Dimas, CA (US) (1978 - 1979)
  • Ontario, CA (US) (1981 - 2004)

Company Filing History:

goldMedal32 out of 57 
 
Armstrong Nurseries, Inc.
 patents
silverMedal21 out of 262 
 
Bear Creek Gardens, Inc.
 patents
bronzeMedal1 out of 1 
 
Armstrong Garden Centers, Inc.
 patent
4. 1 out of 1 
 
Armstrong Roses
 patent
5. 1 out of 223 
 
Cp Delaware, Inc.
 patents
6. 1 out of 1 
 
Paramount Nursery Packaging Company
 patent

Years Active: 1978-2004

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Areas of Expertise:
Hybrid Rose
Floribunda
Tea Rose
Plant Variety
Aromifi
Arofrap
Arocore
Arolala
Arosumo
Arogrewod
Arocruby
Arocomu
57 patents (USPTO):Explore Patents
1. PP14936 - Floribunda rose plant named 'Chrisgood' (2004-06-23),
2. PP9607 - Hybrid rose plant named `Chrisnusp` (1996-07-23),
3. PP9538 - Hybrid Tea rose plant `JAClaf` (1996-05-07),
4. PP9390 - Hybrid Tea rose plant named `Jacyes` (1995-12-05),
5. PP9376 - Hybrid tea rose plant named `JACboy` (1995-11-21),
6. PP9172 - Floribunda rose plant named `JACsedi` (1995-06-20),
7. PP9171 - Floribunda rose plant named JACcofl (1995-06-20),
8. PP8706 - Hybrid tea rose plant named `Jactou` (1994-05-03),
9. PP8700 - Hybrid tea rose plant named `Jacolly` (1994-04-26),
10. PP8605 - Rose plant JACapri (1994-02-22),
11. PP8229 - Rose plant Jactutti (1993-05-18),
12. PP8218 - Rose plant JACmagi (1993-05-04),
13. PP8217 - Rose plant JACmist (1993-05-04),
14. PP7658 - Rose plant Jaclav (1991-10-01),
15. PP7157 - Rose plant Arotrusim (1990-02-20),

Title: Jack E Christensen: A Rose Innovation Maestro

Introduction:

Jack E Christensen, a prolific inventor based in Ontario, CA (US), is renowned for his remarkable contributions to the floral industry. With an impressive portfolio of 57 patents, Christensen's groundbreaking work has revolutionized the world of floriculture.

Latest Patents:

Among his latest creations are the Floribunda rose plant named 'Chrisgood' and the hybrid rose plant named 'Chrisnusp.' 'Chrisgood' boasts vibrant, multi-colored blossoms with a unique pattern of streaks and spots, making it a standout choice for informal garden settings. Meanwhile, 'Chrisnusp' features fully double flowers in cream, pink, and red tones, complemented by healthy dark green foliage.

Career Highlights:

Christensen has lent his expertise to esteemed companies such as Armstrong Nurseries, Inc. and Bear Creek Gardens, Inc., where his innovative spirit has flourished. His relentless pursuit of excellence has solidified his reputation as a visionary in the field of horticulture.

Collaborations:

Throughout his career, Christensen has collaborated with industry stalwarts like Herbert C Swim and Thomas F Carruth, leveraging their collective wisdom to push the boundaries of floral design. Together, they have pioneered new techniques and plant varieties that continue to captivate enthusiasts worldwide.

Conclusion:

In conclusion, Jack E Christensen's passion for floral innovation knows no bounds. His dedication to creating novel rose varieties has left an indelible mark on the industry, inspiring future generations of inventors to dream big and push the limits of horticultural creativity.

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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