Growing community of inventors

Manteca, CA, United States of America

John J Christensen

Average Co-Inventor Count = 2.00

ph-index = 6

The patent ph-index is calculated by counting the number of publications for which an author has been cited by other authors at least that same number of times.

Forward Citations = 363

John J ChristensenDavid R Hall (3 patents)John J ChristensenJoe R Fox (3 patents)John J ChristensenHarry L Nurse, Jr (3 patents)John J ChristensenDaryl Wise (2 patents)John J ChristensenRobert Petersen (2 patents)John J ChristensenJohn Densberger (2 patents)John J ChristensenStuart Denenberg (2 patents)John J ChristensenMatthew Goodson (2 patents)John J ChristensenDan Allen (1 patent)John J ChristensenJoshua Larsen (1 patent)John J ChristensenBen Swenson (1 patent)John J ChristensenDaniel Hendricks (1 patent)John J ChristensenAndrew Huy Nguyen (1 patent)John J ChristensenSteven J M Butala (1 patent)John J ChristensenConrad Rosenbrock (1 patent)John J ChristensenTravis Niederhauser (1 patent)John J ChristensenRonald E English, Jr (1 patent)John J ChristensenJohn J Christensen (12 patents)David R HallDavid R Hall (939 patents)Joe R FoxJoe R Fox (213 patents)Harry L Nurse, JrHarry L Nurse, Jr (25 patents)Daryl WiseDaryl Wise (24 patents)Robert PetersenRobert Petersen (3 patents)John DensbergerJohn Densberger (2 patents)Stuart DenenbergStuart Denenberg (2 patents)Matthew GoodsonMatthew Goodson (2 patents)Dan AllenDan Allen (57 patents)Joshua LarsenJoshua Larsen (43 patents)Ben SwensonBen Swenson (25 patents)Daniel HendricksDaniel Hendricks (17 patents)Andrew Huy NguyenAndrew Huy Nguyen (16 patents)Steven J M ButalaSteven J M Butala (15 patents)Conrad RosenbrockConrad Rosenbrock (13 patents)Travis NiederhauserTravis Niederhauser (10 patents)Ronald E English, JrRonald E English, Jr (2 patents)
..
Inventor’s number of patents
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Strength of working relationships

Company Filing History:

1. Other (7 from 833,002 patents)

2. Verification Technologies, Inc. (2 from 19 patents)

3. The United States of America as Represented by the United States (1 from 3,975 patents)


12 patents:

1. 10280605 - Split toilet bowl for separating fecal matter and urine for collection and analysis

2. 10273674 - Toilet bowl for separating fecal matter and urine for collection and analysis

3. 10060112 - Toilet system for detecting tags in pharmaceutical and nutritional products which are excreted in solid waste

4. 6841066 - Filtration device for a waste water treatment system

5. 6360898 - Filtration device for a waste water treatment system

6. 6306299 - Filtration device for a waste water treatment system

7. D407096 - Tree top inspection video camera

8. 5673338 - System for verification of unique items

9. D370183 - Indoor chimes

10. 5521984 - System for registration, identification and verification of items

11. 5408553 - Optical power splitter for splitting high power light

12. 5072208 - Electromechanical chaotic chiming mechanism

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1/22/2026
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