LONZA LTD
766Patents
211Active
766Granted
49Portfolio score
Filing activity: Apr 26, 1971 → Dec 13, 2023 · 51 expiring within 5 years
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5009675A | Coated silicon carbide abrasive grain | Chemistry; Metallurgy | 292 | Expired |
| US5042991A | Hydrophobically coated abrasive grain | Chemistry; Metallurgy | 292 | Expired |
| US6413746B1 | Production of proteins by cell culture | Chemistry; Metallurgy | 84 | Expired |
| US5547990A | Disinfectants and sanitizers with reduced eye irritation potential | Human Necessities | 74 | Expired |
| US5833741A | Waterproofing and preservative compositons for wood | Performing Operations; Transporting | 66 | Expired |
| US5118847A | 3-hydroxy-2-cyclobuten-1-one salts, their production and use | Chemistry; Metallurgy | 66 | Expired |
| US5565109A | Hydantoin-enhanced halogen efficacy in pulp and paper applications | Chemistry; Metallurgy | 62 | Expired |
| US4052323A | High-temperature lubricant for the hot-working of metals | Chemistry; Metallurgy | 59 | Expired |
| US3936486A | Process for the production of malonic acid dinitrile | Chemistry; Metallurgy | 53 | Expired |
| US4105688A | Process for the production of malonic acid dinitrile and purification thereof | Chemistry; Metallurgy | 52 | Expired |
| US6673957B2 | Method for producing alkoxy malonic acid dinitriles | Chemistry; Metallurgy | 50 | Expired |
| US5210222A | Process for the production of malonic acid anhydride | Chemistry; Metallurgy | 50 | Expired |
| US4844891A | Admixtures of iodopropargyl compounds and a formaldehyde donor | Human Necessities | 44 | Expired |
| US6583181B1 | Antimicrobial quaternary ammonium compositions with reduced ocular irritation | Human Necessities | 44 | Expired |
| US5438034A | Quaternary ammonium carbonate compositions and preparation thereof | Emerging Cross-Sectional Technologies | 41 | Expired |
| US4320147A | Disinfectant composition and the use thereof | Human Necessities | 41 | Expired |
| US6620904B2 | Processes for preparing linear polyglycerols and polyglycerol esters | Chemistry; Metallurgy | 40 | Expired |
| US4575430A | Separating-and-lubricating agent in solid form | Chemistry; Metallurgy | 39 | Expired |
| US5603941A | Multifunctional biodispersant/biocidal compositions | Human Necessities | 38 | Expired |
| US5478490A | Shampoos containing polyglyceryl esters | Chemistry; Metallurgy | 37 | Expired |
| US5750061A | Halohydantoin forms produced by melt extrusion and method for making | Chemistry; Metallurgy | 37 | Expired |
| US5565576A | Halohydantoin and fatty amide composition for compaction, process of compacting and product produced thereby | Human Necessities | 35 | Expired |
| US5076815A | Process for producing sintered material based on aluminum oxide and titanium oxide | Chemistry; Metallurgy | 34 | Expired |
| US6464764B1 | Protective agents for wood | Performing Operations; Transporting | 34 | Expired |
| US6939840B2 | Disinfectant | Chemistry; Metallurgy | 32 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.