Patents
Patent and
Trademark Depository Libraries (PTDL)
Disclaimer: PTDLs are neither required nor encouraged to conduct
patent and trademark searches for their patrons as that activity may be
interpreted as rendering a judgment or opinion. PTDLs are required to
instruct patrons in the use of the search tools available at the PTDLs for
patrons conducting their own patent and trademark searches.
U.S. and international patent offices and patent databases
on the internet
Internet sites providing PDF versions of U.S.
Patents
- Free Patents Online.
Provides access to U.S. patents from number 4,000,000 to the present.
- Patent Retriever. Provides
free PDFs of US, EPO and PCT patents and applications.
- PatentStorm.
Provides free PDFs of U.S. patents from 1976-present.
- Pat2pdf.org. Provides free PDFs of
US patents from 1838 to present.
- WikiPatents. Database of patents open for public comment on the internet, allows PDF downloading of patents, free patent translation into multiple languages, and additional information and resources.
U.S. Patents: Prior Art Searching Tutorial
How to Conduct a Preliminary
Patent Search. Thirty-six minute patent searching tutorial.
Additional self-help patent searching tools:
Maine Statewide Databases or Free Internet Databases: find journal articles, technical reports, standards, etc.
These databases are useful for checking for journal articles, technical
reports, and news announcements about similar products and
technology. If an idea has been published anywhere, it cannot be
granted a patent.
- Academic
Search Premier. Provides full text for over 3,200 scholarly publications.
- AGRICOLA. Produced by
the National Agricultural Library. Resources encompassing all aspects
of agriculture and allied disciplines, including animal and veterinary
sciences, plant sciences, forestry, etc.
- AGRIS.
Sponsored by the United Nations. Food and Agriculture Organization.
1965 to present.
- Aquatic
Sciences and Fisheries Abstracts.
- American Society of Civil Engineers (ASCE) Civil Engineering
Database. Coverage is 1970 to present.
- Business
Source Premier. Provides full text for over 2500 business
journals.
- Citeseer.com. Scientific
Literature Digital Library. NEC Corp. Indexes Postscript and PDF research
articles on the Web. Has citation searching component.
- CogPrints. CogPrints
is an electronic archive for papers in many areas of Computer Science.
Full text of the cited references is available.
- Collection
of Computer Science Bibliographies. Some links to the online fulltext.
- Computing Research
Respository (CoRR). Preprints in computer science. Mechanisms for
searching, downloading and submitting preprints are provided.
- Cooperative
Forestry Research Unit Publications Database.
- DOE Information Bridge. FULL TEXT DATABASE. Full-text reports for 1995 to present
contracted by the U.S. Dept. of Energy.
- Defense Technical Information
Center (DTIC) Scientific and Technical Information Network. .
PARTIAL FULL TEXT DATABASE. Access to all unclassified, unlimited citations to documents added
from late December 1974 to present, many from 1998 to present in
full text.
- E-Print Network. Maintained
by the Dept. of Energy. Allows simultaneous searching of a variety of
preprint servers.
- Electric Power Research Institute.
(EPRI).
- Energy Citations Database.
U.S. Department of Energy database. Coverage is 1948 to present.
- Energy Portal
Search. Provides access to government and research society databases
and evaluated web sites.
- Entrez: the life
sciences search engine. National Library of Medicine sponsored databases including
protein and nucleotide databases and
PubMed.
- Fire Research Information
Services (FRIS). FIREDOC database. Made available by the Building
and Fire Research Laboratory BFRL), National Institute of Standards
and Technology (NIST).
- Fossil
Energy R & D Project Database. U.S. Dept. of Energy.
- Google
Scholar. Beta version, under construction. Indexes
scholarly literature, including peer-reviewed papers, theses, books,
preprints, abstracts and technical reports. Google Scholar
includes articles from a variety of academic publishers, professional
societies, preprint repositories and universities. They rank results
based on their relevance criteria.
- Ingenta (Formerly UnCover).
Coverage is 1988 - Present. Indexes over 28,000 journals in all
disciplines.
- MasterFILE
Premier. Provides full text for over 1,830 general
reference, business, consumer health, general science. Full text
extends back to January, 1990. Indexing and abstracts is
available for an additional 1,000 journals.
- MEDLINE.
Index produced by the National Library of Medicine. Includes over
3,600 journals covering all areas of clinical and experimental
medicine, nursing, dentistry and health administration. Updated
weekly.
- National
Environmental Publications Internet Site (NEPIS). Index to over 9,500
full-text EPA reports.
- National Technical
Information Service (NTIS) Database. 1990 to present.
- Networked Computer Science Technical
Reference Library (NCSTRL). Computer science technical reports from
over 100 institutions worldwide. Over 20,000 reports are available in
full text.
- New York
Times Article Archive. 1851 - present. Full text of articles
can be purchased online or use the microfilm collection in Fogler Library.
- NTRS: NASA
Technical Report Server. This database collects,
archives, and disseminates aerospace information produced by NASA and
other relevant worldwide research.
- OSHLINE
with NIOSHTIC Database. Occupational safety and health resources.
- Recent Advances in
Manufacturing. . Covers over 500 journals.
- Regional
Business News.
- Science Accelerator, Office of Scientific and Technical Information, U.S. Department of Energy. Search collections of DOE research results, project descriptions, and accomplishments. These collections enable you to find out about ongoing research projects, explore significant DOE discoveries, learn about DOE Nobel Prize Winners, access and search scientific e-prints, locate science conference papers and proceedings, patents, and more.
-
Science.gov. New improved gateway to
U.S. government publications and web sites. 12 major science agencies are
collaborating on this project. They have recently added relevancy-ranked
order to the results of a search. It includes 30 databases and over 1700
web sites.
- Scirus. produced by Elsevier. Use their advanced search which provides many options for
full text searching across a variety of databases.
- Searchable Physics Information Notices (SPIN). A bibliographic database
published by the American Institute of Physics. It is updated every 2 weeks
with coverage of all AIP journals and proceedings. Coverage also
includes journals from other societies including the Electrochemical
Society, Russian Academy of Sciences, etc.
- TRIS Online.
1960's to present. Produced by the Transportation Research Board and
other organizations.
- U.S. Dept. of Energy. Scientific and
Technical Information.
- U.S. EPA Web Search. Provides advanced searching of the EPA web site.
- U.S. Forest Service. Publications database.
Patent Guides
Attorneys Registered with the USPTO
Invention Promotion Firms
Directories of Products and Companies: Search to
see if a similar product is already being sold.
Small Business Resources
Inventor and Entrepreneur Education Opportunities in Maine
Trade Shows and
Inventors Congresses
See TSSN.com: The
Ultimate Trade Show Resource. Searchable index of
trade shows by state, city and industry.
Internet Directories
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