Harry E. Ulmer
24Patents
7h-index
24Co-inventors
65Inventor score
Filing activity: Oct 18, 1973 → Feb 1, 1991
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5190565A | Sulfonated 2-(2'-hydroxyaryl)-2H-benzotriazoles and/or sulfonated aromatic formaldehyde condensates and their use to improve stain resistance and dye lightfasteness | Emerging Cross-Sectional Technologies | 61 | Expired |
| US4507248A | Preparation from hydroxylammonium sulfate of oximes and hydroxamic acids via alcoholic hydroxylamine solution | Chemistry; Metallurgy | 17 | Expired |
| US3959382A | Method for reactivating palladium catalysts | Emerging Cross-Sectional Technologies | 14 | Expired |
| US4407783A | Producing silane from silicon tetrafluoride | Chemistry; Metallurgy | 14 | Expired |
| US4203923A | Method for promotion of phenol hydrogenation | Chemistry; Metallurgy | 11 | Expired |
| US4707294A | Preparation of alcoholic hydroxylamine solution from hydroxylammonium sulfate | Chemistry; Metallurgy | 8 | Expired |
| US4380660A | Producing alkoxysilanes and alkoxy-oximinosilanes | Chemistry; Metallurgy | 8 | Expired |
| US4400527A | Producing oximinosilanes, oximinogermanes and oximinostannanes | Chemistry; Metallurgy | 7 | Expired |
| US4551323A | Preparation of alcoholic hydroxylamine solution from hydroxylammonium sulfate | Chemistry; Metallurgy | 6 | Expired |
| US4277620A | Byproduct recovery from a pentaerythritol waste stream | Chemistry; Metallurgy | 4 | Expired |
| US4990623A | Sulfonated 2-(2'-hydroxyaryl)-2H-benzotriazoles and/or sulfonated aromatic formaldehyde condensates | Textiles; Paper | 4 | Expired |
| US4551324A | Preparation from hydroxylammonium sulfate of other hydroxylammonium salts via alcoholic hydroxylamine | Chemistry; Metallurgy | 4 | Expired |
| US4605707A | Quaternary polyalkylene imine containing 2-hydroxypropyltrimethyl ammonium salt pendent side chain groups | Chemistry; Metallurgy | 4 | Expired |
| US4349520A | Continuous hydrolysis of ketoxime | Chemistry; Metallurgy | 3 | Expired |
| US3931331A | Process of preparing .alpha.-formyl sulfides and 2-hydrocarbylthioaldoximes therefrom | Chemistry; Metallurgy | 3 | Expired |
| US4088703A | Recovery of phenol values from purification residues | Chemistry; Metallurgy | 3 | Expired |
| US4237069A | Production of alpha-hydroxy oximes | Chemistry; Metallurgy | 3 | Expired |
| US4612389A | Treatment of waste stream from pentaerythritol manufacture | Chemistry; Metallurgy | 2 | Expired |
| US4736006A | Terpolymers of chlorotrifluoroethylene, or tetrafluoroethylene, ethylene and perfluoroisoalkoxy perfluoroalkyl ethylenes | Chemistry; Metallurgy | 2 | Expired |
| US4139507A | One-component binder for fiberboard | Chemistry; Metallurgy | 2 | Expired |
| US4014867A | Production of hexamethyleneimine from caprolactam | Chemistry; Metallurgy | 1 | Expired |
| US4705904A | Vapor phase synthesis of hexafluoroisobutylene | Chemistry; Metallurgy | 1 | Expired |
| US4614813A | Process for the preparation of N-hydroxy organo imidate compounds | Chemistry; Metallurgy | 0 | Expired |
| US4187386A | Cyclization of 1,5-hexadiene to cyclohexene | Chemistry; Metallurgy | 0 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.