David J. Long
31Patents
11h-index
12Co-inventors
72Inventor score
Filing activity: Feb 24, 1981 → Aug 10, 2020
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US7987217B2 | Transaction-aware caching for document metadata | Electricity | 55 | Expired |
| US5989112A | Universal abrasive disc | Performing Operations; Transporting | 33 | Expired |
| USD355052S | Protective knee pad | General | 30 | Expired |
| US5032656A | Fluorinated copolymer and barrier films | Chemistry; Metallurgy | 27 | Expired |
| US6644421B1 | Sonde housing | Fixed Constructions | 25 | Expired |
| US6439988B1 | Corner sanding tool | Performing Operations; Transporting | 22 | Expired |
| US5135998A | Process for forming a fluorinated copolymer | Chemistry; Metallurgy | 20 | Expired |
| US7185005B1 | Nested transactions in a file system | Emerging Cross-Sectional Technologies | 18 | Expired |
| US5194667A | Fiber surface modifiers | Emerging Cross-Sectional Technologies | 16 | Expired |
| US4400728A | Video process control apparatus | Physics | 16 | Expired |
| US7203709B2 | Transaction-aware caching for access control metadata | Emerging Cross-Sectional Technologies | 12 | Expired |
| USD314162S | Combined trophy ball and picture display stand | General | 10 | Expired |
| US7240329B1 | Policies on a per instance basis | Emerging Cross-Sectional Technologies | 8 | Expired |
| US4939289A | Fiber surface modifiers | Emerging Cross-Sectional Technologies | 7 | Expired |
| USD354590S | Protective knee pad | General | 7 | Expired |
| US4435294A | Polycyclic pyromellitates and use thereof on polyesters and polyamides | Emerging Cross-Sectional Technologies | 5 | Expired |
| US8529319B2 | Universal bushing for abrasive wheels | Emerging Cross-Sectional Technologies | 5 | Active |
| US5137999A | Copolymerization of vinyl acetate and a fluoromonomer in an aqueous medium | Chemistry; Metallurgy | 5 | Expired |
| US5070162A | Copolymerization of vinyl acetate and a fluoromonomer in an aqueous medium | Chemistry; Metallurgy | 5 | Expired |
| US5173556A | Fluorinated copolymer and barrier films | Chemistry; Metallurgy | 4 | Expired |
| US6637969B2 | Swivel | Emerging Cross-Sectional Technologies | 4 | Expired |
| US7421541B2 | Version management of cached permissions metadata | Emerging Cross-Sectional Technologies | 3 | Expired |
| US7725878B1 | Property bundles on a per instance basis | Physics | 3 | Expired |
| US4460785A | Acid chloride of pyromellitic anhydride | Chemistry; Metallurgy | 3 | Expired |
| US5151477A | Copolymerization of vinyl acetate and a fluoromonomer in an aqueous medium | Chemistry; Metallurgy | 3 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.