John R. Pierce
20Patents
11h-index
18Co-inventors
72Inventor score
Filing activity: Oct 29, 1973 → Mar 3, 2000
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5653625A | Star shot wave tumbler systems | Performing Operations; Transporting | 43 | Expired |
| US5298289A | Polyphenol compounds and treatment and after-treatment of metal, plastic and painted surfaces therewith | Emerging Cross-Sectional Technologies | 35 | Expired |
| US4963596A | Treatment and after-treatment of metal with carbohydrate-modified polyphenol compounds | Chemistry; Metallurgy | 32 | Expired |
| US5266410A | Treatment and after-treatment of metal with polyphenol compounds | Emerging Cross-Sectional Technologies | 21 | Expired |
| US5116912A | Polyphenolic compounds and uses thereof | Chemistry; Metallurgy | 21 | Expired |
| US5226976A | Metal treatment | Chemistry; Metallurgy | 21 | Expired |
| US4970264A | Treatment and after-treatment of metal with amine oxide-containing polyphenol compounds | Chemistry; Metallurgy | 19 | Expired |
| US5039770A | Treatment and after-treatment of metal with polyphenol compounds | Chemistry; Metallurgy | 18 | Expired |
| US5068299A | Carbodohydrate-modifed polyphenol compounds and compositions containing them | Chemistry; Metallurgy | 16 | Expired |
| US5891952A | Aqueous compositions containing polyphenol copolymers and processes for their preparation | Chemistry; Metallurgy | 14 | Expired |
| US5063089A | Hydroxylamine or amine oxide containing polyphenolic compounds and uses thereof | Chemistry; Metallurgy | 14 | Expired |
| US5401337A | Secondary protective treatments for metal surfaces | Chemistry; Metallurgy | 9 | Expired |
| US6328816A | Composition and method for degreasing metal surfaces | Chemistry; Metallurgy | 8 | Expired |
| US6211132A | Composition and method for deburring/degreasing/cleaning metal surfaces | Chemistry; Metallurgy | 8 | Expired |
| USRE28919E | Speech processor using controlled center clipping | General | 6 | Expired |
| US6251847A | Composition and method for cleaning/degreasing metal surfaces, especially composites of copper and aluminum | Chemistry; Metallurgy | 5 | Expired |
| USRE28811E | Interconnected loop data block transmission system | General | 4 | Expired |
| US6899770B1 | Composition and process for treating metal surfaces | Chemistry; Metallurgy | 3 | Expired |
| US5703313A | Passive nonlinear filter for digital musical sound synthesizer and method | Emerging Cross-Sectional Technologies | 3 | Expired |
| US5948178A | Composition and process for forming a solid adherent protective coating on metal surfaces | Chemistry; Metallurgy | 0 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.