Growing community of inventors

Livermore, CA, United States of America

John O Hallquist

Average Co-Inventor Count = 1.32

ph-index = 4

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 = 123

John O HallquistWilliam W Feng (4 patents)John O HallquistBrian Wainscott (2 patents)John O HallquistDuane Trent Detwiler (1 patent)John O HallquistEmily Nutwell (1 patent)John O HallquistMu Lu (1 patent)John O HallquistHailong Teng (1 patent)John O HallquistPaul A DuBois (1 patent)John O HallquistJohn O Hallquist (20 patents)William W FengWilliam W Feng (22 patents)Brian WainscottBrian Wainscott (3 patents)Duane Trent DetwilerDuane Trent Detwiler (14 patents)Emily NutwellEmily Nutwell (3 patents)Mu LuMu Lu (2 patents)Hailong TengHailong Teng (2 patents)Paul A DuBoisPaul A DuBois (1 patent)
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Inventor’s number of patents
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Strength of working relationships

Company Filing History:

1. Livermore Software Technology Corporation (20 from 77 patents)

2. Honda Motor Co., Ltd. (1 from 21,893 patents)


20 patents:

1. 10452796 - Dynamically-positioned search domain used in numerical simulation of an impact event between two objects

2. 9607115 - Methods and systems for reporting realistic kinetic energy of a multi-part finite element analysis model

3. 9292632 - Methods and systems for providing detailed rigid wall force summary in a time-marching simulation of a vehicle colliding with a rigid wall

4. 9098657 - Contact surface definition creation involving low order and quadratic finite elements in a numerical simulation of an impact event

5. 8855977 - Numerically simulating structural behaviors of a product using explicit finite element analysis with a combined technique of mass scaling and subcycling

6. 8855976 - Numerically simulating structural behaviors of a product using explicit finite element analysis with a mass scaling enhanced subcycling technique

7. 8494819 - Efficient data management for shell finite elements representing layered composite materials

8. 8467997 - Numerically-simulated rigid body creation mehtods and systems thereof

9. 8296109 - Methods and systems for enabling simulation of aging effect of a chrono-rheological material in computer aided engineering analysis

10. 8209157 - Methods and systems for simulating beam-to-surface contacts in finite element analysis

11. 8200458 - Creation of simulated disjoint rigid bodies in a finite element analysis

12. 8069017 - Method of initializing bolt pretension in a finite element analysis

13. 8050897 - Solid finite elements suitable for simulating large deformations and/or rotations of a structure

14. 7945432 - Spot weld failure determination method in a finite element analysis

15. 7664623 - Efficient simulation of manufacturing process of shapeable material using finite element analysis

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12/26/2025
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