David P. Workman
19Patents
8h-index
30Co-inventors
72Inventor score
Filing activity: Dec 14, 1990 → Jan 15, 2020
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6312644A | Fluorescent monomers and polymers containing same for use in industrial water systems | Chemistry; Metallurgy | 36 | Expired |
| US7467741B2 | Method of forming a sputtering target assembly and assembly made therefrom | Chemistry; Metallurgy | 24 | Expired |
| US6315909A | Use of control matrix for cooling water systems control | Chemistry; Metallurgy | 20 | Expired |
| US5332701A | Ceramic synthesis by pyrolysis of metal-containing polymer and metal | Chemistry; Metallurgy | 14 | Expired |
| US6281467A | Conductive heat resistance seam welding | Performing Operations; Transporting | 12 | Expired |
| US6153106A | Method for inhibiting the formation and deposition of silica scale in water systems | Chemistry; Metallurgy | 11 | Expired |
| US6545244B1 | Conductive heat seam welding | Performing Operations; Transporting | 9 | Expired |
| US6461518B1 | Method for inhibiting the formation and deposition of silica scale in water systems | Chemistry; Metallurgy | 8 | Expired |
| US7126076B2 | Method for repairing defects in a metallic substrate using welding | Performing Operations; Transporting | 5 | Expired |
| US7141754B2 | Method for repairing defects in a conductive substrate using welding | Performing Operations; Transporting | 4 | Expired |
| US8651393B2 | Repair insert for repairing metallic structure | Emerging Cross-Sectional Technologies | 2 | Active |
| US10207359B2 | Thermite welding | Performing Operations; Transporting | 1 | Active |
| US5419837A | Hindered amines for treating industrial water systems | Emerging Cross-Sectional Technologies | 1 | Expired |
| US10239153B2 | Inertia friction welding system for martensite-free joining of materials | Performing Operations; Transporting | 1 | Active |
| US6075082A | Cross-linked polymide binders for ceramics manufacture | Chemistry; Metallurgy | 0 | Expired |
| US10571372B2 | Method and apparatus for filtration of samples for online analyzers | Physics | 0 | Active |
| US10227238B2 | Production and use of polysilicate particulate materials | Textiles; Paper | 0 | Active |
| US11639883B2 | Method and apparatus for filtration of samples for online analyzers | Physics | 0 | Active |
| US9498843B2 | System for preventing the formation of martensite in metals joining applications | Performing Operations; Transporting | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.