A · How many
Before and after the Statute of Monopolies (1624)
3.9 → 3.6Grants per year, before → after
Key point
Mean grants per year were 3.9 in 1617–1623 and 3.6 in 1625–1631, with overlapping 95% intervals. Of the terms written in the entries, 18 of 27 in 1617–1623 are 21 years, and 93 of 96 in 1625–1640 are 14 years or less.
- Definition
- Mean grants per year in the seven years before and after 1624, the year of the Statute of Monopolies (21 Jac. I c. 3), and the terms written in the entries.
- Formula
- mean per year = grants in window ÷ 7; 95% interval = exact Poisson interval
- How to read it
- The yearly means of 1617–1623 and 1625–1631 are about the same. The median term written in the entries is 21 years in 1617–1623 and 14 in 1625–1640; some terms of 14 or less come before 1624 and some 21-year terms after it.
- Caveats
- A before-and-after comparison only; it does not say the Statute changed the number. The list before 1617 stops in 1603.
Table
| Window | Years | Grants | Per year | 95% CI low | 95% CI high | Terms stated | Median term | 21 years | ≤14 years |
|---|---|---|---|---|---|---|---|---|---|
| 1617-1623 | 7 | 27 | 3.86 | 2.54 | 5.61 | ||||
| 1625-1631 | 7 | 25 | 3.57 | 2.31 | 5.27 | ||||
| 1632-1638 | 7 | 67 | 9.57 | 7.42 | 12.16 | ||||
| 1617-1623 | 7 | 27 | 21 | 18 | 6 | ||||
| 1624 | 1 | 3 | 14 | 1 | 2 | ||||
| 1625-1640 | 16 | 96 | 14 | 3 | 93 |
ocrReliability card
OCR count: counted by rule from scanned OCR text; below, the error measured on a sample checked against page images
- Image check, year
- 119/120 (99%, 95% CI 95–100%)
- Image check, term
- 118/120 (98%, 95% CI 94–100%)
- Image check, number of grantees
- 118/120 (98%, 95% CI 94–100%)
- Image check, communication
- 119/120 (99%, 95% CI 95–100%)
Sources
- Bennet Woodcroft, Titles of Patents of Invention, Chronologically Arranged, from March 2, 1617 (14 James I.) to October 1, 1852 (16 Victoriae), London: Eyre & Spottiswoode, 1854, 2 parts (Nos. 1–14,359). Entries were split from the word coordinates of the Internet Archive OCR of the University of Illinois copy (
chronologicalin1617grea_0,chronologicalind1617grea); 115 pages on which that OCR lost entry numbers were read again from the page images with tesseract 5. (public domain, 1854; https://archive.org/details/chronologicalin1617grea_0)