Patent assignee · NL · COMPANY

RIJK ZWAAN ZAADTEELT EN ZAADHANDEL B.V.

361Patents
358Active
361Granted
58Portfolio score

Filing activity: Nov 12, 1996 → Jul 14, 2023 · 19 expiring within 5 years

Most-cited patents

PatentTitleAreaCited byStatus
US8389810B2 Lettuce variety 41-49 RZ Chemistry; Metallurgy 33 Active
US9814210B2 Lettuce variety 41-187 RZ Chemistry; Metallurgy 31 Active
US9320250B2 Lettuce variety 41-153 RZ Human Necessities 29 Active
US9161510B2 Lettuce variety 41-177 RZ Chemistry; Metallurgy 25 Active
US9554550B2 Lettuce variety 45-158 RZ Human Necessities 24 Active
US9326479B2 Lettuce variety 45-114 RZ Human Necessities 24 Active
US10321651B2 Lettuce variety 45-161 RZ Chemistry; Metallurgy 23 Active
US10426117B2 Lettuce variety 79-135 RZ Human Necessities 22 Active
US10492407B2 Lettuce variety 41-366 RZ Chemistry; Metallurgy 21 Active
US9402363B1 Peronospora resistance in spinacia oleracea Chemistry; Metallurgy 20 Active
US9370163B2 Lettuce variety 79-315 RZ, drake Human Necessities 16 Active
US8809631B2 Screening method for selecting plants that show reduced wound-induced surface discolouration and plant and plant parts thus obtained Physics 16 Active
US9265275B2 Spinach line SP6504 Chemistry; Metallurgy 13 Active
US9290774B2 Lettuce variety 79-69 RZ “triplex RZ” Chemistry; Metallurgy 11 Active
US10264744B2 Hybrid tomato variety 72-188 RZ Chemistry; Metallurgy 8 Active
US7504562B2 Lettuce variety Human Necessities 7 Active
US5977443A Aphid resistance in composites Human Necessities 7 Expired
US6320104A Multileaf lettuce Human Necessities 7 Expired
US10492391B2 Methods for breeding short celery Human Necessities 6 Active
US8008548B2 Plants with reduced susceptibility to pathogenic oomycetes Human Necessities 6 Active
US8119342B2 Non-destructive procedure for the isolation of DNA from plants Chemistry; Metallurgy 5 Active
US9307739B2 Hybrid spinach variety 51-335 RZ Chemistry; Metallurgy 5 Active
US9832945B2 Hybrid tomato variety 72-190 RZ Human Necessities 5 Active
US7777101B2 Resistance to physiological disorders in lettuce Human Necessities 5 Active
US9615531B2 Peronospora resistance in Spinacia oleracea Chemistry; Metallurgy 4 Active

Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.