VEGA Grieshaber KG — Patent Portfolio & Competitor Landscape

The data shows a portfolio with an unusually narrow technical centre and a widening periphery. The radar core (G01F23/284, G01S13/88, H01Q1/225) is stable and dominant, while the fastest-growing subclasses between the two halves of the period are not measurement principles at all: instrument construction and general measuring (G01D) rose from 14 to 150 families, and digital communication subclasses (H04L, H04W, H04Q) together moved from 39 to 105. The pattern is consistent with a sensor manufacturer building out connectivity and device engineering around an established measurement core, although classification practice can also shift the G01D figure and the data alone cannot separate the two effects.

Filing activity rose through the period with one clear dip and one clear peak. From a 2015 low of 44 families the count climbed for five consecutive years to 140 families in 2020, the highest value in the series, then settled around 100 families per year. Comparing complete cohorts rather than single years, the annual average went from 65 families (2014–2018) to 119 families (2019–2022), an increase of 83%. Growth statements deliberately stop at 2022, because the last two filing years are not yet complete in this snapshot.

583 of 952 families (61.2%) carry a code in G01F, the subclass for measuring volume, flow and liquid level. The next three subclasses are all supporting technologies of the same product: radar systems (G01S, 250 families), instrument construction and general measuring (G01D, 164) and antennas (H01Q, 136). At group level the concentration is even sharper — G01F23/284, level measurement by electromagnetic waves, alone appears on 312 families, and the radar-specific groups G01S13/88 (197) and H01Q1/225 (121, antennas used in level-measurement devices) follow directly behind.

Ranked by measurement principle, radar dominates every alternative by a wide margin: 312 families for electromagnetic waves against 54 for acoustic, 52 for ionising radiation, 34 for optical and 23 for capacitive level detection. The second observation is the movement between the two halves of the period. Subclass G01D — instrument housings, supports and general measuring — went from 14 families in 2014–2018 to 150 in 2019–2024, the largest relative shift in the profile, while the communication subclasses H04L, H04W and H04Q together moved from 39 to 105 families. One possible explanation is a broadening from the sensing element towards the instrument and its network integration; a change in classification practice would produce a similar pattern, and this data cannot distinguish the two.

Among the nine process-instrumentation groups examined, VEGA Grieshaber holds the largest arena portfolio with 571 families, ahead of Endress+Hauser with 376 and Rosemount with 142. That is 60.0% of VEGA's entire 952-family portfolio sitting inside a single main group of the classification. Measured against the whole arena, however, the nine group counts sum to 1,289 of the 19,916 arena families: level measurement as a classified subject is dominated in volume by applicants outside the instrumentation industry.

The four largest peers move in opposite directions. VEGA's arena filings rose from 50 families in 2014 to a peak of 79 in 2020 and stayed at 59 or above through 2023, while Endress+Hauser fell from 57 to below 36 in every year after 2018, Rosemount from 33 to single digits, and Honeywell from 17 in 2014 to at most 3 families per year from 2019 onwards. Interpreted narrowly, this says the four are allocating different amounts of patenting effort to level measurement — it says nothing about their overall R&D, and the technology heatmap in the next section shows that Honeywell and Rosemount remain large filers elsewhere.

Three profiles are visible in the table. VEGA is a radar-and-level house: G01F (583), G01S (250) and H01Q (136) are its three strongest subclasses, and it is the only group in which antennas rank that highly — no other peer exceeds 102 families in H01Q. Endress+Hauser is the broad-line instrument house, leading the table in G01F (990) but also carrying 766 families in material analysis (G01N), 295 in pressure and 149 in temperature — disciplines in which VEGA files 54, 89 and 10 families respectively. Honeywell and Rosemount are control-system firms whose largest subclass is G05B (787 and 409), with level measurement a comparatively small part of a much larger portfolio. KROHNE, Finetek and Berthold are specialists on VEGA's own ground but an order of magnitude smaller in it.

VEGA files first and foremost at home: 655 of 952 families (68.8%) include a German application, and the German share grew hardest of all — from 143 families with a DE filing in 2014–2018 to 512 in 2019–2024. The three international routes behind it are the USPTO (337 families, 35.4%), the EPO (302, 31.7%) and the PCT (200 families, a PCT rate of 21.0%). China is the clearest directional move: 32 families with a CN filing in the first period against 134 in the second. In the other direction, the EPO route slipped from 158 to 145 families and the smaller national routes Hungary (53 to 21), Taiwan (20 to 4) and Korea (22 to 10) contracted.

The inventive work is concentrated in a small, long-serving group. 204 distinct inventors cover the whole portfolio, and the twelve most frequently named appear on 39 to 110 families each. The head of the list — Hengstler with 110 families and Welle with 105 — is named on roughly one in nine of all 952 families. The base is also widening: 103 inventors are named on families first filed in 2014–2018 against 172 on families first filed in 2019–2024. Because many inventors are active across both cohorts, the two figures do not add up to 204.

An external co-application rate of 0.3% (3 of 952 families) places VEGA at the closed end of the collaboration spectrum. The portfolio is developed in-house; there are no university partnerships, no research-institute co-filings and no supplier consortia visible in the applicant data for this period.

Across the whole period 467 of 952 families (49.1%) hold at least one grant. Restricted to the cohort old enough to be largely decided — families first filed between 2014 and 2020 — the figure rises to 62.7% (355 of 566 families). The office pattern is the interesting part: the EPO grants 72.8% and the USPTO 68.8% of what VEGA files there, while the German office records grants for only 26.6% of the 655 families filed at the DPMA. One possible explanation is the common German practice of using a national first filing as a priority anchor and pursuing the substantive examination on the European route instead; the data here shows the outcome, not the intent.

Data basis. This report was recomputed on 15 August 2026 against EPO PATSTAT Global, Spring 2026 (patstat_2026a), with IPC edition 20260101 and CPC edition 202608 as reported by dpt_edition. All three code-set completions were applied to the classification-derived competitor arena: the code list was expanded to its full subtree by recursion on the CPC parent chain, deprecated symbols were kept instead of filtered out with is_active, and the predecessor chain in dpt_cpc_reclassification was unioned in — it holds no entries for G01F23, so it contributed nothing.