Update patent_downloader.py

patent_downloader.py

@@ -8,7 +8,7 @@ import subprocess
 import pandas as pd
 from urllib.parse import urljoin
 import tempfile
-from PyPDF2 import PdfReader  # PDF validation
+from PyPDF2 import PdfReader 
 from selenium import webdriver
 from selenium.webdriver.common.keys import Keys
 from selenium.webdriver.chrome.service import Service
@@ -17,6 +17,8 @@ from selenium.webdriver.common.by import By
 from selenium.webdriver.support.ui import WebDriverWait
 from selenium.webdriver.support import expected_conditions as EC
 import chromedriver_autoinstaller
+from bs4 import BeautifulSoup 
+
 
 
 class PatentDownloader: